EI收北京建筑工程学院环能学院
 1.   Accession number:  20095312597448
Title:  Small-scale formation of struvite by electrochemical deposition and its characterization
Authors:  Wang, Chong-Chen1 ; Hao, Xiao-Di1
Author affiliation:  1  School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100044, China
 
Corresponding author:  Wang, C.-C. (chongchenwang@126.com)
Source title:  3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009
Abbreviated source title:  Int. Conf. Bioinformatics Biomed. Eng., iCBBE
Monograph title:  3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009
Issue date:  2009
Publication year:  2009
Article number:  5163406
Language:  English
ISBN-13:  9781424429028
Document type:  Conference article (CA)
Conference name:  3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009
Conference date:  June 11, 2009 - June 13, 2009
Conference location:  Beijing, China
Conference code:  79013
Sponsor:  IEEE Engineering in Medicine and Biology Society; Gordon Life Science Institute; Fudan University; Beijing University of Posts and Telecommunications; Beijing Institute of Technology
Publisher:  IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:  Precipitates with high content of struvite were harvested by electrochemical deposition method from an aqueous solution containing Mg 2+, NH4+ and HnPO43-n ions. The generation of OH- via electrochemical reduction of dissolved oxygen increased the interfacial pH near cathode, resulting into the formation of struvite precipitates. The structure, the morphology, the composition and the thermal properties of the harvested precipitates were investigated by X-ray diffraction (XRD), micro-image analysis by high-resolution color digital camera, Infrared (IR) spectra, energy-dispersive spectrometry(EDS), element analysis (EA) and thermogravimetric analysis (TGA). Especially a new and novel calculation method was introduced to determine exactly the struvite content in the precipitates harvested by electrochemical deposition. ©2009 IEEE.
Number of references:  10
Main heading:  X ray diffraction analysis
Controlled terms:  Bioinformatics  -  Cameras  -  Computer crime  -  Dissolution  -  Dissolved oxygen  -  Electrodeposition  -  Electrolytic reduction  -  Harvesting  -  Image analysis  -  Infrared spectroscopy   -  Thermodynamic properties  -  Thermogravimetric analysis  -  X ray diffraction
Uncontrolled terms:  Aqueous solutions  -  Calculation methods  -  Color digital cameras  -  Electrochemical deposition  -  Electrochemical reductions  -  Element analysis  -  High resolution  -  High-content  -  Scale formation  -  Struvites   -  Thermal properties  -  XRD
Classification code:  941.4 Optical Variables Measurements  -  742.2 Photographic Equipment  -  801 Chemistry  -  801.4.1 Electrochemistry  -  802.2 Chemical Reactions  -  802.3 Chemical Operations  -  813.1 Coating Techniques  -  821.3 Agricultural Methods  -  902.3 Legal Aspects  -  903 Information Science  -  931.2 Physical Properties of Gases, Liquids and Solids  -  931.3 Atomic and Molecular Physics  -  933.1.1 Crystal Lattice  -  741.1 Light/Optics  -  444 Water Resources  -  445 Water Treatment  -  454.3 Ecology and Ecosystems  -  461.7 Health Care  -  461.8.2 Bioinformatics  -  741 Light, Optics and Optical Devices  -  461.9 Biology  -  539.3.1 Electroplating  -  641.1 Thermodynamics  -  723 Computer Software, Data Handling and Applications  -  723.2 Data Processing and Image Processing  -  533.1 Ore Treatment
DOI:  10.1109/ICBBE.2009.5163406
Database:  Compendex
Compilation and indexing terms, © 2009 Elsevier Inc.
 
 
2.   Accession number:  20094212382653
Title:  Numerical analysis of tunnel thermal plume control using longitudinal ventilation
Authors:  Hui, Yang1, 2 ; Li, Jia1 ; Lixin, Yang1
Author affiliation:  1  Department of Power Engineering, School of Mechanical and Electronic Control Engineering, Beijing Jiaotong University, Beijing, 100044, China
2  School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100044, China
 
Corresponding author:  Hui, Y. (yanghui@bucea.edu.cn)
Source title:  Fire Safety Journal
Abbreviated source title:  Fire Saf J
Volume:  44
Issue:  8
Issue date:  November 2009
Publication year:  2009
Pages:  1067-1077
Language:  English
ISSN:  03797112
CODEN:  FSJODZ
Document type:  Journal article (JA)
Publisher:  Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:  A CFD model of the 4th Beijing subway line was used to study the effect of longitudinal ventilation on heat and smoke plume movement in the tunnel. The critical ventilation velocity is correlated with the heat release rate for both a simplified heat fire source model and a complete combustion fire source model with methane gas as fuel. The influences of the heat source length and the fuel gas inlet geometry on the critical velocity are investigated for both fire source models. The results show that the influences of the combustion process and fire source area variation are not included in models based on Froude number preservation theory. Thus, Ri is no longer suitable as a dimensionless number for the critical ventilation velocity when the fire geometry or combustion conditions influence the results. The back-layering air temperature above the front of the fire source can be used to explain the different critical velocity variation regimes for all the simulation conditions. © 2009 Elsevier Ltd. All rights reserved.
Number of references:  16
Main heading:  Ventilation
Controlled terms:  Combustion  -  Fires  -  Fossil fuels  -  Leakage (fluid)  -  Methane  -  Simulators  -  Smoke  -  Thermal plumes  -  Tunnel linings  -  Tunnels   -  Velocity  -  Wind tunnels
Uncontrolled terms:  Critical ventilation velocity  -  Heat release rate  -  Longitudinal ventilation  -  Numerical simulation  -  Tunnel fire
Classification code:  651.2 Wind Tunnels  -  654.1 Rockets and Missiles  -  655.2 Satellites  -  657.1 Solar Energy and Phenomena  -  662.1 Automobiles  -  643.5 Ventilation  -  671 Naval Architecture  -  804 Chemical Products Generally  -  804.1 Organic Compounds  -  914.2 Fires and Fire Protection  -  931.1 Mechanics  -  801.3 Colloid Chemistry  -  621 Nuclear Reactors  -  422.1 Test Equipment  -  451.1 Air Pollution Sources  -  452.1 Sewage  -  452.3 Industrial Wastes  -  453.1 Water Pollution Sources  -  401.2 Tunnels and Tunneling  -  483.1 Soils and Soil Mechanics  -  522 Gas Fuels  -  523 Liquid Fuels  -  524 Solid Fuels  -  619.1 Pipe, Piping and Pipelines  -  521.1 Fuel Combustion
DOI:  10.1016/j.firesaf.2009.07.006
Database:  Compendex
Compilation and indexing terms, © 2009 Elsevier Inc.
 
 
3.   Accession number:  20094912531372
Title:  Research on energy storage of building structure with phase change material
Authors:  Qiu, Lin1 ; Liu, Xing1
Author affiliation:  1  School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
 
Corresponding author:  Qiu, L. (qiulin@bucea.edu.cn)
Source title:  Jianzhu Cailiao Xuebao/Journal of Building Materials
Abbreviated source title:  Jianzhu Cailiao Xuebao
Volume:  12
Issue:  5
Issue date:  October 2009
Publication year:  2009
Pages:  621-624
Language:  Chinese
ISSN:  10079629
Document type:  Journal article (JA)
Publisher:  Tongji University, 1239 Siping Road, Shanghai, 200092, China
Abstract:  The action and function of phase change material(PCM) for building energy storage was studied. Numerical simulation of the energy storage process in building structure with PCM was conducted. The effects of PCM modules arrangement in building structure on temperature distribution, heating condition, energy storage and discharge time and PCM efficiency was investigated. The optimum PCM modules arrangement to satisfy the floor heating energy storage requirement is provided. Simulation program is compared with the measured results that shows good consistency.
Number of references:  5
Main heading:  Storage (materials)
Controlled terms:  Buoyancy  -  Computer simulation  -  Energy storage  -  Floors  -  Flywheels  -  Heating  -  Mathematical models  -  Phase change materials  -  Pulse code modulation  -  Structures (built objects)
Uncontrolled terms:  Building energy  -  Building structure  -  Discharge time  -  Floor heating  -  Heating conditions  -  In-buildings  -  Measured results  -  Numerical simulation  -  Simulation program  -  Storage requirements
Classification code:  702 Electric Batteries and Fuel Cells  -  716 Telecommunication; Radar, Radio and Television  -  723.5 Computer Applications  -  694.4 Storage  -  801.4 Physical Chemistry  -  931.2 Physical Properties of Gases, Liquids and Solids  -  933 Solid State Physics  -  921 Mathematics  -  643.1 Space Heating  -  408 Structural Design  -  525.7 Energy Storage  -  601.1 Mechanical Devices  -  402 Buildings and Towers  -  615 Thermoelectric, Magnetohydrodynamic and Other Power Generators  -  631 Fluid Flow  -  642.1 Process Heating  -  616 Heat Exchangers
Database:  Compendex
Compilation and indexing terms, © 2009 Elsevier Inc.
 
 
4.   Accession number:  20093812319883
Title:  Numerical simulation of the impact of both air conditioning system and train's movement on platform air temperature distribution
Authors:  Yang, Hui1, 2 ; Jia, Li1 ; Yang, Lixin1
Author affiliation:  1  Department of Power Engineering, School of Mechanical and Electronic Control Engineering, Beijing Jiaotong University, Beijing 100044, China
2  School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
 
Corresponding author:  Yang, H.
Source title:  2008 Proceedings of the ASME Summer Heat Transfer Conference, HT 2008
Abbreviated source title:  Proc. ASME Summer Heat Transf. Conf., HT
Volume:  1
Monograph title:  2008 Proceedings of the ASME Summer Heat Transfer Conference, HT 2008
Issue date:  2009
Publication year:  2009
Pages:  569-573
Language:  English
ISBN-13:  9780791848487
Document type:  Conference article (CA)
Conference name:  2008 ASME Summer Heat Transfer Conference, HT 2008
Conference date:  August 10, 2008 - August 14, 2008
Conference location:  Jacksonville, FL, United states
Conference code:  76700
Sponsor:  Heat Transfer Division, ASME
Publisher:  ASME, Three Park Avenue, New York,, 10016, United States
Abstract:  The three dimensional air temperature distributions on subway platform under both natural ventilation mode and over-platform supply/under-platform exhaust (OSUE) air conditioning system were simulated during a single train entering, staying and departing processes by using Computational Fluid Dynamics (CFD) method. On basis of the simulation, the comprehensive influences of both the train's piston effect and the air conditioning mode on the air environment in different part of the platform were analyzed. Copyright © 2008 by ASME.
Number of references:  9
Main heading:  Air
Controlled terms:  Air conditioning  -  Atmospheric temperature  -  Computational fluid dynamics  -  Computer simulation  -  Glass industry  -  Heat exchangers  -  Heat transfer  -  Temperature distribution  -  Ventilation exhausts
Uncontrolled terms:  Air environment  -  Air temperature  -  Airconditioning systems  -  Computational fluid dynamics methods  -  Natural ventilation  -  Numerical simulation  -  Piston effect
Classification code:  723.5 Computer Applications  -  804 Chemical Products Generally  -  812.3 Glass  -  643.5 Ventilation  -  912 Industrial Engineering and Management  -  921.6 Numerical Methods  -  931.1 Mechanics  -  913 Production Planning and Control; Manufacturing  -  643.3 Air Conditioning  -  451.1 Air Pollution Sources  -  616.1 Heat Exchange Equipment and Components  -  619.1 Pipe, Piping and Pipelines  -  443.1 Atmospheric Properties  -  631.1.1 Liquid Dynamics  -  641.1 Thermodynamics  -  641.2 Heat Transfer  -  631.1.2 Gas Dynamics
Database:  Compendex
Compilation and indexing terms, © 2009 Elsevier Inc.
 
 
5.   Accession number:  20091311993405
Title:  Performance of a successive hydrolysis, denitrification and nitrification system for simultaneous removal of COD and nitrogen from terramycin production wastewater
Authors:  Ma, W.L.1, 2 ; Qi, R.1 ; Zhang, Y.1 ; Wang, J.1, 3 ; Liang, C.Z.1, 4 ; Yang, M.1
Author affiliation:  1  State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Haidian District, Beijing, 100085, China
2  Environmental Engineering Dept., the Inst. of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100044, China
3  School of Environmental and Safety Engineering, Jiangsu Polytechnic University, Changzhou, 213164, China
4  Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, China
 
Corresponding author:  Yang, M. (yangmin@rcees.ac.cn)
Source title:  Biochemical Engineering Journal
Abbreviated source title:  Biochem. Eng. J.
Volume:  45
Issue:  1
Issue date:  June 1, 2009
Publication year:  2009
Pages:  30-34
Language:  English
ISSN:  1369703X
CODEN:  BEJOFV
Document type:  Journal article (JA)
Publisher:  Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:  A bench-scale continuous flow system, consisting successively of an anaerobic hydrolysis column (column A), an anoxic column (column D) and two aerobic columns (columns B and F), was constructed to remove nitrogen and carbon simultaneously from terramycin crystallization mother solution (TCMS). Columns A and D were sludge-bed reactors, and columns B and F were biofilm reactors packed with polyethylene balls and soft fibers hung on plastic rings, respectively. Approximately 82% of the chemical oxygen demand (COD) and 81% total nitrogen were removed by the system when tap water diluted TCMS was continuously fed (dilution ratio, 1:4). Sulfide which was produced during anaerobic hydrolysis was used as part of electron donors for denitrification in column D. Comparison results show that porous polyethylene balls had a better COD and NH4+-N removal performance than the fiber type biocarrier. © 2009 Elsevier B.V. All rights reserved.
Number of references:  12
Main heading:  Chemical oxygen demand
Controlled terms:  Antibiotics  -  Denitrification  -  Hydrolysis  -  Nitrification  -  Nitrogen  -  Nitrogen removal  -  Oxidation  -  Oxygen  -  Thermoplastics  -  Wastewater   -  Wastewater treatment
Uncontrolled terms:  Anaerobic hydrolysis  -  Bed reactors  -  Bio carriers  -  Biofilm reactors  -  Chemical-oxygen demands  -  Comparison results  -  Continuous-flow systems  -  Dilution ratios  -  Electron donors  -  Fiber types   -  N removals  -  Plastic rings  -  Simultaneous removal of COD and nitrogen  -  Tap waters  -  Total nitrogens
Classification code:  817.1 Polymer Products  -  816.1 Processing of Plastics and Other Polymers  -  815.1.1 Organic Polymers  -  804.1 Organic Compounds  -  804 Chemical Products Generally  -  802.3 Chemical Operations  -  802.2 Chemical Reactions  -  513.1 Petroleum Refining, General  -  461.6 Medicine and Pharmacology  -  453 Water Pollution  -  452.4 Industrial Wastes Treatment and Disposal  -  452.3 Industrial Wastes  -  452.2 Sewage Treatment
DOI:  10.1016/j.bej.2009.02.001
Database:  Compendex
Compilation and indexing terms, © 2009 Elsevier Inc.
 
 
6.   Accession number:  20091311986112
Title:  Experimental investigation of top lighting and side lighting solar light pipes under sunnny conditions in winter in beijing
Authors:  Yanpeng, Wu1 ; Rendong, Jin2 ; Deying, Li3 ; Wenming, Zhang1 ; Chongfang, Ma4
Author affiliation:  1  School of Civil and Environmental Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
2  Service and Capital Construction Office, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
3  School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, 1 Zhanlan Road, Xicheng District, Beijing 100044, China
4  College of Environmental and Energy Engineering, Beijing Univ. of Technology, 100 Pingleyuan, Chaoyang District, Beijing 100022, China
 
Corresponding author:  Yanpeng, W. (ypwu@yahoo.cn)
Source title:  Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:  Proc SPIE Int Soc Opt Eng
Volume:  7157
Monograph title:  2008 International Conference on Optical Instruments and Technology: Advanced Sensor Technologies and Applications
Issue date:  2009
Publication year:  2009
Article number:  71571O
Language:  English
ISSN:  0277786X
CODEN:  PSISDG
Document type:  Conference article (CA)
Conference name:  2008 International Conference on Optical Instruments and Technology: Advanced Sensor Technologies and Applications
Conference date:  November 16, 2008 - November 19, 2008
Conference location:  Beijing, China
Conference code:  75968
Publisher:  SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:  Natural light is very important element in the quality of vision.Solar light pipes are effective method to induce sunlight into the room need to be illuminated especially for corridor, some places natural sunlight cannot arrive. Solar light pipes are also effective ways to reduce electricity consumption for lighting; it can transmit sunlight from outdoor to the room without generating excessive heat. The performance of two top lighting solar light pipes and one side lighting solar light pipe were investigated at the same time under sunny conditions in winter in Beijing. The results showed that side lighting solar light pipes have better performance than that of top lighting one. Side lighting light pipe has better performance than top lighting light pipe if there are no shelters around the top dome under sunny conditions in winter in Beijing. Solar altitude is the main reason to give an effect on the performance of light pipes. The experimental results also showed that top lighting solar light pipes with "snow type" diffuser has better performance compare with the "diamond type" one. Solar azimuth can also affect the illuminance for whole day to all solar light pipes. So if the sunlight collector can following with the sun, this problem can be resolved, that is ,automatic sun trackers are needed, but the cost will become too much at the same time. Different regions and different seasons had to select different types of solar light pipes to achieve maximum output of illuminance in the room. Design of the solar light pipes must adjust measures to local conditions. Solar light pipes will be popularized in the near future in China because have many advantages to improve energy efficiency in buildings. © 2009 SPIE.
Number of references:  7
Main heading:  Solar energy
Controlled terms:  Energy efficiency  -  Fiber optics  -  Light emitting diodes  -  Lighting  -  Optical instruments  -  Pipe  -  Sensors  -  Technology
Uncontrolled terms:  Daylight  -  Electricity-consumption  -  Energy efficiency in buildings  -  Energy saving  -  Experimental investigations  -  If there ares  -  Light pipes  -  Local conditions  -  Maximum outputs  -  Natural lights   -  Natural sunlights  -  Side lighting  -  Solar light pipes  -  Sun trackers
Classification code:  941.3 Optical Instruments  -  901 Engineering Profession  -  801 Chemistry  -  741.3 Optical Devices and Systems  -  741.1.2 Fiber Optics  -  741.1 Light/Optics  -  732.2 Control Instrumentation  -  714.2 Semiconductor Devices and Integrated Circuits  -  707 Illuminating Engineering  -  657.1 Solar Energy and Phenomena  -  619.1 Pipe, Piping and Pipelines  -  615.2 Solar Power  -  525.2 Energy Conservation
DOI:  10.1117/12.811992
Database:  Compendex
Compilation and indexing terms, © 2009 Elsevier Inc.
 
 
7.   Accession number:  20093512276907
Title:  The application of field-syergy theory in enhancing convective heat transfer of solar wall
Authors:  Ren, Geng1 ; Qiu, Lin1
Author affiliation:  1  Schoool of Environment and Energy Engineering, Beijing university of Civil Engineering and Architecture, Beijing, China
 
Corresponding author:  Ren, G. (Xingye_163@163.com)
Source title:  2009 Asia-Pacific Power and Energy Engineering Conference, APPEEC 2009 - Proceedings
Abbreviated source title:  Asia-Pac. Power Energy Eng. Conf., APPEEC - Proc.
Monograph title:  2009 Asia-Pacific Power and Energy Engineering Conference, APPEEC 2009 - Proceedings
Issue date:  2009
Publication year:  2009
Article number:  4918867
Language:  English
ISBN-13:  9781424424870
Document type:  Conference article (CA)
Conference name:  2009 Asia-Pacific Power and Energy Engineering Conference, APPEEC 2009
Conference date:  March 27, 2009 - March 31, 2009
Conference location:  Wuhan, China
Conference code:  77041
Sponsor:  Wuhan University; IEEE Power and Energy Society; Chinese Society for Electrical Engineering; Scientific Research Publishing
Publisher:  Inst. of Elec. and Elec. Eng. Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:  The field-synergy theory has been applied for convective heat transfer analysis of fluid flow inside solar wall, the facters affected convective heat transfer was discussed. The results indicate that increasing the gradient of heat flux along the vertical direction of solar wall, increasing the ratio of vertical velocity u to horizontal velocity v(u/v>5), and changing the direction of temperature gradient to get access to vertical direction (increasing the angle θ) can enhance convective heat transfer of solar wall in the actual condition. In order to provide guidance for designer on practical project to improve heat transfer performance of solar wall, this paper give three improved measures based on analysis. © 2009 IEEE.
Number of references:  7
Main heading:  Solar energy
Controlled terms:  Flow of fluids  -  Heat convection  -  Heat exchangers  -  Heat transfer coefficients
Uncontrolled terms:  Convective heat transfer  -  Convective heat transfer enhancement  -  Field-synergy theory  -  Fluid flow  -  Heat transfer performance  -  Horizontal velocity  -  Solar wall  -  Solar walls  -  Temperature gradient  -  Vertical direction   -  Vertical velocity
Classification code:  615.2 Solar Power  -  616.1 Heat Exchange Equipment and Components  -  631.1 Fluid Flow, General  -  641.2 Heat Transfer  -  657.1 Solar Energy and Phenomena  -  931.1 Mechanics
DOI:  10.1109/APPEEC.2009.4918867
Database:  Compendex
Compilation and indexing terms, © 2009 Elsevier Inc.
 
 
8.   Accession number:  20092912191949
Title:  Experimental evaluation of decrease in bacterial activity due to cell death and activity decay in activated sludge
Authors:  Hao, Xiaodi1 ; Wang, Qilin1 ; Zhang, Xiangping1 ; Cao, Yali1 ; Mark Loosdrecht, C.M. van2
Author affiliation:  1  The R and D Centre for Sustainable Environmental Biotechnology, Beijing University of Civil Engineering and Architecture, Beijing, 100044, China
2  Department of Biotechnology, Delft University of Technology, Julianalaan 67, 2628 BC Delft, Netherlands
 
Corresponding author:  Hao, X. (xdhao@hotmail.com)
Source title:  Water Research
Abbreviated source title:  Water Res.
Volume:  43
Issue:  14
Issue date:  August 2009
Publication year:  2009
Pages:  3604-3612
Language:  English
ISSN:  00431354
CODEN:  WATRAG
Document type:  Journal article (JA)
Publisher:  Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:  Decrease in bacterial activity (cell decay) in activated sludge can be attributed to cell death (reduction in the amount of active bacteria) and activity decay (reduction in the specific activity of active bacteria). The aim of this study was to experimentally differentiate between cell death and activity decay as a source of decrease in microbial activity. By means of measuring maximal oxygen uptake rates, verifying membrane integrity by live/dead staining and verifying presence of 16S rRNA with fluorescence in-situ hybridization, the decay rates and the death rates of ammonium oxidizing bacteria (AOB), nitrite oxidizing bacteria (NOB) and ordinary heterotrophic organisms (OHOs) were determined respectively in a nitrifying sequencing batch reactor (SBR) and a heterotrophic SBR. The experiments revealed that in the nitrifying system activity decay contributed 47% and 82% to the decreased activities of AOB and NOB and that cell death was responsible for 53% and 18% of decreases in their respective activities. In the heterotrophic system, activity decay took a share of 78% in the decreased activity of OHOs, and cell death was only responsible for 22% of decrease in their activity. The difference between the importance of cell death on the decreased activities of AOB and OHOs might be caused by the mechanisms of substrate storage and/or cryptic growth/death-regeneration of OHOs. The different nutrient sources for AOB and NOB might be the reason for a relatively smaller fraction of cell death in NOB. © 2009 Elsevier Ltd. All rights reserved.
Number of references:  52
Main heading:  Decay (organic)
Controlled terms:  Activated sludge process  -  Ammonium compounds  -  Bacteriology  -  Batch reactors  -  Bioactivity  -  Cell death  -  Cell membranes  -  Fluorescence  -  Nitrification  -  Oxygen
Uncontrolled terms:  Activity decay  -  Decay rate  -  Fluorescence in-situ hybridization (FISH)  -  Live/dead staining  -  Oxygen uptake rate (OUR)
Classification code:  804.2 Inorganic Compounds  -  804.1 Organic Compounds  -  804 Chemical Products Generally  -  802.2 Chemical Reactions  -  802.1 Chemical Plants and Equipment  -  811.2 Wood and Wood Products  -  801.2 Biochemistry  -  461.9 Biology  -  461.6 Medicine and Pharmacology  -  461.2 Biological Materials and Tissue Engineering  -  452.2 Sewage Treatment  -  741.1 Light/Optics
DOI:  10.1016/j.watres.2009.05.019
Database:  Compendex
Compilation and indexing terms, © 2009 Elsevier Inc.
 
 
9.   Accession number:  20091311979768
Title:  Thermographic method for evaluation of thermal influence of exterior surface colour of buildings
Authors:  Wu, Yanpeng1 ; Li, Deying2 ; Jin, Rendong3 ; Liu, Li1 ; Bai, Jiabin1 ; Feng, Jianming3
Author affiliation:  1  School of Civil and Environmental Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
2  School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, 1 Zhanlan Road, Xicheng District, Beijing 100044, China
3  Service and Capital Construction Office, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
 
Corresponding author:  Wu, Y.
Source title:  Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:  Proc SPIE Int Soc Opt Eng
Volume:  7160
Monograph title:  2008 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Applications
Issue date:  2009
Publication year:  2009
Article number:  716037
Language:  English
ISSN:  0277786X
CODEN:  PSISDG
Document type:  Conference article (CA)
Conference name:  2008 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Applications
Conference date:  November 16, 2008 - November 19, 2008
Conference location:  Beijing, China
Conference code:  75971
Publisher:  SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:  Architecture colour is an important part in urban designing. It directly affects the expressing and the thermal effect of exterior surface of buildings. It has proved that four factors affect the sign visibility, graphics, colour, lighting condition and age of the observers, and colour is the main aspect. The best method is to prevent the exterior space heating up in the first place, by reflecting heat away room the exterior surface.The colour of paint to coat building's exterior wall can have a huge impact on energy efficiency. While the suitable colour is essential to increasing the energy efficiency of paint colour during the warm summer months, those products also help paint colour efficiency and reduce heat loss from buildings during winter months making the interior more comfortable all year long. The article is based on analyzing the importance of architecture color design and existing urban colour design. The effect of external surface colour on the thermal behaviour of a building has been studied experimentally by Infrared Thermographic method in University of Science and technology Beijing insummer.The experimental results showed that different colour has quietly different thermal effect on the exterior surface of buildings. The thermal effect of carmine and fawn has nearly the same values. The main factor which is color express, give some suggest ting about urban color design. The investigation reveals that the use of suitable surface colour can dramatically reduce maximum the temperatures of the exterior wall. © 2009 SPIE.
Number of references:  7
Main heading:  Color
Controlled terms:  Architectural design  -  Architecture  -  Cantilever beams  -  Colorimetry  -  Electric variables measurement  -  Energy efficiency  -  Heating  -  Measurement theory  -  Optical instruments  -  Paint   -  Technology  -  Thermal effects  -  Thermography (temperature measurement)  -  Walls (structural partitions)
Uncontrolled terms:  Architectural colour  -  Color designs  -  Exterior surfaces  -  Exterior walls  -  External surfaces  -  Lighting conditions  -  Science and technologies  -  Sign visibilities  -  Summer months  -  Surface colours   -  Thermal  -  Thermal behaviours  -  Thermal influences  -  Thermographic  -  Thermographic methods  -  Winter months
Classification code:  741.1 Light/Optics  -  741.3 Optical Devices and Systems  -  813.2 Coating Materials  -  901 Engineering Profession  -  922 Statistical Methods  -  931.1 Mechanics  -  941.3 Optical Instruments  -  941.4 Optical Variables Measurements  -  942.2 Electric Variables Measurements  -  944.6 Temperature Measurements  -  951 Materials Science  -  643.1 Space Heating  -  402 Buildings and Towers  -  408.1 Structural Design, General  -  408.2 Structural Members and Shapes  -  421 Strength of Building Materials; Mechanical Properties  -  461.1 Biomedical Engineering  -  462.1 Biomedical Equipment, General  -  525.2 Energy Conservation  -  531 Metallurgy and Metallography  -  539.2.2 Protecting Materials  -  641 Heat and Mass Transfer; Thermodynamics  -  642.1 Process Heating
DOI:  10.1117/12.812017
Database:  Compendex
Compilation and indexing terms, © 2009 Elsevier Inc.
 
 
10.   Accession number:  20093512276255
Title:  Applying analysis of solar composite wall
Authors:  Qiu, Lin1 ; Zou, Yue1 ; Huang, Li1 ; Tan, Zhi1
Author affiliation:  1  Beijing University of Civil Engineering and Architecture, Beijing, China
 
Corresponding author:  Qiu, L. (qiulin@bucea.edu.cn)
Source title:  2009 Asia-Pacific Power and Energy Engineering Conference, APPEEC 2009 - Proceedings
Abbreviated source title:  Asia-Pac. Power Energy Eng. Conf., APPEEC - Proc.
Monograph title:  2009 Asia-Pacific Power and Energy Engineering Conference, APPEEC 2009 - Proceedings
Issue date:  2009
Publication year:  2009
Article number:  4918195
Language:  English
ISBN-13:  9781424424870
Document type:  Conference article (CA)
Conference name:  2009 Asia-Pacific Power and Energy Engineering Conference, APPEEC 2009
Conference date:  March 27, 2009 - March 31, 2009
Conference location:  Wuhan, China
Conference code:  77041
Sponsor:  Wuhan University; IEEE Power and Energy Society; Chinese Society for Electrical Engineering; Scientific Research Publishing
Publisher:  Inst. of Elec. and Elec. Eng. Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:  In this article, the heat model with solar panel composite wall structure was set up. simulation on heat resistance of solar composite wall was carried out, associated with three air flow patterns which refer to stillness, natural convection and forced convection, and compared with common wall without solar panel. It was found that the conditioning load was decreased remarkably due to the wall's reducing heat gain. Besides, the heat resistance was affected by interlayer thickness, the optimum interlayer thickness of different conditions of natural convection was given. © 2009 IEEE.
Number of references:  4
Main heading:  Solar energy
Controlled terms:  Flow patterns  -  Flow simulation  -  Heat exchangers  -  Heat resistance  -  Heat transfer  -  Natural convection  -  Solar concentrators  -  Specific heat  -  Structural panels
Uncontrolled terms:  Airflow patterns  -  Composite wall  -  Heat gains  -  Heat transfer performance  -  Interlayer thickness  -  Solar composite wall  -  Solar panels
Classification code:  931.2 Physical Properties of Gases, Liquids and Solids  -  723.5 Computer Applications  -  702.3 Solar Cells  -  657.1 Solar Energy and Phenomena  -  641.3 Mass Transfer  -  641.2 Heat Transfer  -  641.1 Thermodynamics  -  631.1 Fluid Flow, General  -  616.1 Heat Exchange Equipment and Components  -  615.2 Solar Power  -  408.2 Structural Members and Shapes
DOI:  10.1109/APPEEC.2009.4918195
Database:  Compendex
Compilation and indexing terms, © 2009 Elsevier Inc.
 
 
11.   Accession number:  20092412123398
Title:  Optimization of regulation valve location for heating system
Authors:  Liu, Ling-Ling1 ; Chen, Hong-Bing1 ; Li, De-Ying1
Author affiliation:  1  School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
 
Corresponding author:  Chen, H.-B. (Chenhongbin@bucea.edu.cn)
Source title:  Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences
Abbreviated source title:  Hunan Daxue Xuebao
Volume:  36
Issue:  SUPPL.
Issue date:  May 2009
Publication year:  2009
Pages:  88-90
Language:  English
ISSN:  16742974
CODEN:  HDAXE3
Document type:  Journal article (JA)
Publisher:  Hunan University, Changsha, 410082, China
Abstract:  This paper mainly studied how to determine the best location of the self-operated flow control valve at the heating system entrance. Since the location of regulating valve directly affects the pipe network performance, the simulation and analysis of pressure change in heating system was carried out with Computational Fluid Dynamics (CFD) software. The study shows the best location of regulating valve varies with the change of the supply and return pipe length when the heating area of each user is small, and when the heating area of each user is large (2000000-3000000 m2), the best location is on the supply pipe.
Number of references:  8
Main heading:  Heating
Controlled terms:  Computational fluid dynamics  -  Computer software  -  Heating equipment  -  Optimization  -  Pipe  -  Systems engineering
Uncontrolled terms:  CFD simulation  -  Flow control valves  -  Heating system  -  Pipe networks  -  Pressure change  -  Regulating valve  -  Simulation and analysis
Classification code:  961 Systems Science  -  723 Computer Software, Data Handling and Applications  -  723.5 Computer Applications  -  912 Industrial Engineering and Management  -  921.5 Optimization Techniques  -  921.6 Numerical Methods  -  931.1 Mechanics  -  643.2 Space Heating Equipment and Components  -  642.2 Industrial Furnaces and Components  -  642.1 Process Heating  -  631.1.2 Gas Dynamics  -  631.1.1 Liquid Dynamics  -  619.1 Pipe, Piping and Pipelines  -  643.1 Space Heating
Database:  Compendex
Compilation and indexing terms, © 2009 Elsevier Inc.
 
 
12.   Accession number:  20091011942444
Title:  Discuss of relationship between method of energy savings performance contract and building energy-saving
Authors:  Xie, Guozhen1 ; Gao, Yuan1
Author affiliation:  1  School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
 
Corresponding author:  Xie, G. (xieguozhen@bucea.edu.cn)
Source title:  Huagong Xuebao/CIESC Journal
Abbreviated source title:  Huagong Xuebao
Volume:  59
Issue:  SUPPL.
Issue date:  December 2008
Publication year:  2008
Pages:  215-218
Language:  Chinese
ISSN:  04381157
Document type:  Journal article (JA)
Publisher:  Chemical Industry Press, No. 3 Huixinli, Chaoyangqu, Beijing, 100029, China
Abstract:  The utilization of energy resources presents that the current energy structure doesn't match with the economical situation that is low energy efficiency. Specially, there is a huge potential of energy-saving in the field of construction in China. Energy Management Company (EMC) is introduced in this paper. The EMC provides a new approach for building energy-saving in China. Most of the EMCS are independent companies that take charge of the evaluation, design and construction of a building subject to make sure the energy-saving. The energy savings performance contract (ESPC) is adopted by the EMC as a manner to perform the assignment. By carrying out the approach, many building enterprises can enjoy the benefits of energy-saving without the investment in advance. The EMC provides the overall services for these enterprises which need energy-saving. But there are still some problems in the practice such as the distempered code, the non-standard market system, the immature management regulation and so on. At present, the development of EMC is incomplete and needs the government supporting and the relative corporations working together to contribute the energy-saving for construction filed.
Number of references:  9
Main heading:  Investments
Controlled terms:  Buildings  -  Contracts  -  Electromagnetic compatibility  -  Energy efficiency  -  Energy management  -  Energy resources  -  Plastic molds
Uncontrolled terms:  Building energies  -  Current energies  -  Design and constructions  -  Energy savings performance contract  -  Energy-saving  -  Market systems  -  New approaches
Classification code:  911.2 Industrial Economics  -  902.3 Legal Aspects  -  817.1 Polymer Products  -  711.1 Electromagnetic Waves in Different Media  -  912.2 Management  -  706 Electric Transmission and Distribution  -  525.1 Energy Resources and Renewable Energy Issues  -  525 Energy Management and Conversion  -  402 Buildings and Towers  -  525.2 Energy Conservation
Database:  Compendex
Compilation and indexing terms, © 2009 Elsevier Inc.
 
 
13.   Accession number:  20094512424779
Title:  Fault diagnosis for variable-air-volume systems using fuzzy neural networks
Authors:  Xie, Hui1 ; Liu, Yan2 ; Li, Deying3
Author affiliation:  1  School of Civil and Environment Engineering, University of Science and Technology Beijing, Beijing, China
2  Asset Management Limited, University of Science and Technology Beijing, Beijing, China
3  School of Environment and Energy Engineering, Beijing Institute of Civil Engineering and Architecture, Beijing, China
 
Corresponding author:  Xie, H. (xiehui20000@sina.com)
Source title:  Proceedings of 2009 4th International Conference on Computer Science and Education, ICCSE 2009
Abbreviated source title:  Proc. Int. Conf. Comput. Sci. Educ., ICCSE
Monograph title:  Proceedings of 2009 4th International Conference on Computer Science and Education, ICCSE 2009
Issue date:  2009
Publication year:  2009
Pages:  183-188
Article number:  5228498
Language:  English
ISBN-13:  9781424435210
Document type:  Conference article (CA)
Conference name:  2009 4th International Conference on Computer Science and Education, ICCSE 2009
Conference date:  July 25, 2009 - July 28, 2009
Conference location:  Nanning, China
Conference code:  78003
Publisher:  IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:  This paper presents a new method for fault diagnosis of variable air volume (VAV) air-conditioning systems. The method determines performance indices using self-organizing fuzzy neural networks (SOFNN). The SOFNN has two outstanding characteristics. Firstly, the learning speed is very fast and fuzzy rules can be generated quickly because no iterative learning is employed. Secondly, by using the pruning technology, significant nodes can be self-adaptive according to their contributions to the system performance. Consequently, the proposed method can achieve high performance with a parsimonious structure. Simulation results indicate that the SOFNN-based fault diagnosis method for VAV systems gives a very good performance in training speed and diagnosis speed and has high diagnosis rate. ©2009 IEEE.
Number of references:  20
Main heading:  Fuzzy neural networks
Controlled terms:  Air conditioning  -  Computer science  -  Education  -  Education computing  -  Failure analysis
Uncontrolled terms:  Airconditioning systems  -  Fault diagnosis  -  Fault diagnosis method  -  Iterative learning  -  Learning speed  -  Performance indices  -  Self-adaptive  -  Self-organizing fuzzy neural network  -  Self-organizing fuzzy neural networks  -  Simulation result   -  Training speed  -  Variable air volume  -  Variable-air-volume systems  -  VAV air-conditioning system  -  VAV system
Classification code:  921 Mathematics  -  901.2 Education  -  723.4 Artificial Intelligence  -  723.2 Data Processing and Image Processing  -  723 Computer Software, Data Handling and Applications  -  722 Computer Systems and Equipment  -  721 Computer Circuits and Logic Elements  -  643.3 Air Conditioning  -  421 Strength of Building Materials; Mechanical Properties
DOI:  10.1109/ICCSE.2009.5228498
Database:  Compendex
Compilation and indexing terms, © 2009 Elsevier Inc.
 
 
14.   Accession number:  20094212372345
Title:  Durability and micro-structure of reactive powder concrete
Authors:  Liu, Juanhong1 ; Song, Shaomin2 ; Wang, Lin2
Author affiliation:  1  College of Civil and Environmental Engineering, Beijing University of Science and Technology, Beijing 100083, China
2  College of Civil and Transportation Engineering, Beijing Institute of Civil Engineering and Architecture, Beijing 100044, China
 
Corresponding author:  Liu, J. (juanhong1966@hotmail.com)
Source title:  Journal Wuhan University of Technology, Materials Science Edition
Abbreviated source title:  J Wuhan Univ Technol Mater Sci Ed
Volume:  24
Issue:  3
Issue date:  2009
Publication year:  2009
Pages:  506-509
Language:  English
ISSN:  10002413
CODEN:  JWUTE8
Document type:  Journal article (JA)
Publisher:  Springer Verlag, Tiergartenstrasse 17, Heidelberg, D-69121, Germany
Abstract:  Durability of traditional reactive powder concrete (RPC) with rich cement and high volume of fly-ash reactive powder concrete (FRPC) were studied. The X-diffraction and scanning electron microscope (SEM) measurement was imployed to analyze the microstructure. The results show that both types of RPC have higher compressive strength, less volume shrinkage ratio and better carbonation-, chloride-, freezing-resistances than the conventional concrete. The results of X-diffraction indicate that they basically have C-S-H as the main composition without Ca(OH)2 crystal and ettringite. SEM results show that hydration products of FRPC is mainly III-C-S-H which is piled up closely like densely arranged stone body and it has very compacted structure, in addition, Ca/Si ratio of C-S-H gel is lower than 1.5. © 2009 Wuhan University of Technology and Springer-Verlag GmbH.
Number of references:  9
Main heading:  Powders
Controlled terms:  Calcium  -  Chlorine compounds  -  Compressive strength  -  Diffraction  -  Durability  -  Fiber reinforced plastics  -  Hydration  -  Microstructure  -  Particle spectrometers  -  Scanning electron microscopy
Uncontrolled terms:  C-S-H gel  -  Conventional concrete  -  Ettringites  -  High volume fly-ash reactive powder concrete (FRPC), durability  -  Hydration products  -  Reactive powder concrete  -  Scanning electron microscopes  -  SEM  -  Volume shrinkage
Classification code:  804.1 Organic Compounds  -  804.2 Inorganic Compounds  -  817.2 Polymer Applications  -  804 Chemical Products Generally  -  931.2 Physical Properties of Gases, Liquids and Solids  -  933 Solid State Physics  -  951 Materials Science  -  932.1 High Energy Physics  -  802.2 Chemical Reactions  -  421 Strength of Building Materials; Mechanical Properties  -  531.2 Metallography  -  536 Powder Metallurgy  -  415.2 Plastics Structural Materials  -  549.2 Alkaline Earth Metals  -  741.1 Light/Optics  -  801.4 Physical Chemistry  -  711.1 Electromagnetic Waves in Different Media
DOI:  10.1007/s11595-009-3506-1
Database:  Compendex
Compilation and indexing terms, © 2009 Elsevier Inc.
 
 
15.   Accession number:  20092412123405
Title:  Measurement methodology for monitoring fouling resistance in condenser of chiller
Authors:  Yu, Dan1, 3 ; Gan, Li-Si1 ; Cao, Yong2
Author affiliation:  1  Beijing University of Technology, Beijing 100022, China
2  Build Environment and Energy Efficiency, China Academy of Building Research, Beijing 100013, China
3  Beijing Institute of Civil Engineering and Architecture, Beijing 100044, China
 
Corresponding author:  Yu, D. (cabrcao@sina.com)
Source title:  Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences
Abbreviated source title:  Hunan Daxue Xuebao
Volume:  36
Issue:  SUPPL.
Issue date:  May 2009
Publication year:  2009
Pages:  119-122
Language:  English
ISSN:  16742974
CODEN:  HDAXE3
Document type:  Journal article (JA)
Publisher:  Hunan University, Changsha, 410082, China
Abstract:  This paper established an on-line monitoring model for fouling resistance of cooling water based on heat transfer theory, which was mainly applied to the fouling resistance test for condenser of chiller in operation, and the test requirements were presented. It proves that the load ratio of chiller has big influence on the test result, and the best load ratio for test is the range of 80%-100%. A case has been executed to validate the model's feasibility.
Number of references:  6
Main heading:  Cooling water
Controlled terms:  Condensers (liquefiers)  -  Cooling  -  Fouling  -  Heat resistance  -  Monitoring  -  Testing  -  Water cooling systems
Uncontrolled terms:  Condenser  -  Fouling resistance  -  Heat transfer theory  -  Load ratio  -  Measurement methodology  -  Online monitoring  -  Test requirements  -  Test results
Classification code:  944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments  -  802.1 Chemical Plants and Equipment  -  802.3 Chemical Operations  -  931.2 Physical Properties of Gases, Liquids and Solids  -  941 Acoustical and Optical Measuring Instruments  -  942 Electric and Electronic Measuring Instruments  -  943 Mechanical and Miscellaneous Measuring Instruments  -  644.3 Refrigeration Equipment and Components  -  616.1 Heat Exchange Equipment and Components  -  616 Heat Exchangers  -  539.1 Metals Corrosion  -  423.2 Test Methods  -  422.2 Test Methods  -  641.2 Heat Transfer
Database:  Compendex
Compilation and indexing terms, © 2009 Elsevier Inc.
 
 
16.   Accession number:  20091311983462
Title:  Numerical simulation on influence of diffusion performance on airstream distribution in a room
Authors:  Luan, Ru1 ; Li, Rui1 ; Yuan, Dong-Zhao1
Author affiliation:  1  Beijing Institute of Civil Engineering and Architecture, Beijing 100044, China
 
Corresponding author:  Li, R. (Lirui@bucea.edu.cn)
Source title:  Jisuan Lixue Xuebao/Chinese Journal of Computational Mechanics
Abbreviated source title:  Jisuan Lixue Xuebao
Volume:  26
Issue:  1
Issue date:  February 2009
Publication year:  2009
Pages:  137-141
Language:  Chinese
ISSN:  10074708
CODEN:  JLXIAB
Document type:  Journal article (JA)
Publisher:  Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:  This paper presents an investigation in the diffusion performance and indoor of cold air distribution system. The flow conditions of cold air and its influence on the indoor environment were deeply discussed. Cold air discharge theory was used to analyze the diffusion performance and three important parameters were investigated, including the characteristic length, throw distance and separation distance. Regarding some typical air-conditional room as the object, this paper studies air-stream distribution in the room under cold air diffusion by the method of computational fluid dynamics (CFD). Through establishing reasonable mathematics model, the paper stimulates the air-conditional airstream distribution. Then stimulation results are validated by experiments. Based on analyzing the calculated velocity and temperature fields of the air-stream in the room under several entry speed, the paper ascertains its entry speed range and the best entry speed. Finally the conclusion that every cold air distribution system has its own entry speed range is deduced.
Number of references:  4
Main heading:  Air
Controlled terms:  Air conditioning  -  Computational fluid dynamics  -  Diffusion  -  Fluid dynamics  -  Speed
Uncontrolled terms:  Characteristic lengths  -  Cold air distribution  -  Flow conditions  -  Indoor environments  -  Mathematics models  -  Numerical simulations  -  Numerical stimulation  -  Separation distances  -  Speed ranges  -  Temperature fields
Classification code:  921.6 Numerical Methods  -  804 Chemical Products Generally  -  723.5 Computer Applications  -  931.1 Mechanics  -  643.3 Air Conditioning  -  631.1.1 Liquid Dynamics  -  631.1 Fluid Flow, General  -  631.1.2 Gas Dynamics
Database:  Compendex
Compilation and indexing terms, © 2009 Elsevier Inc.
 
 
17.   Accession number:  20093212240781
Title:  Stator insulation structure of 135 MW evaporative cooling turbo-generator by marinating
Authors:  Luan, Ru1 ; Ping, Jian-Hua1 ; Gu, Guo-Biao2
Author affiliation:  1  Beijing Institute of Civil Engineering and Architecture, Beijing 100044, China
2  Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100080, China
 
Corresponding author:  Luan, R. (luanru@bucea.edu.cn)
Source title:  Gaodianya Jishu/High Voltage Engineering
Abbreviated source title:  Gaodianya Jishu
Volume:  35
Issue:  6
Issue date:  June 2009
Publication year:  2009
Pages:  1333-1337
Language:  Chinese
ISSN:  10036520
CODEN:  GAJIE5
Document type:  Journal article (JA)
Publisher:  Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:  In order to apply evaporative cooling technology to a high voltage and large capacity turbo-generator that will be used for a main power generator, the problem of designing reasonable insulation structure needs to be solved. The characteratistics of the evaporative cooling medium for an immerging evaporative cooling stator need to be utilized, in order to decrease greatly the thickness of the stator main insulation. Only by this way can we realize the efficacy of the evaporative cooling technology. Firstly, we calculated and analyzed the electric field and the temperature field in immerging evaporative cooling stator insulation structure in detail by using finite element methods. Then, we summarized the distribution rules or specialties of these two fields. Furthermore, it is proved that decreasing the main stator insulation thickness is reasonable and feasible to the 135MW evaporative cooing turbo-generator. Results show that the stator insulation thickness is reduced greatly compared with traditional one. Meanwhile, the reasonable current density is deduced based on the simulation results and experimental results.
Number of references:  16
Main heading:  Evaporative cooling systems
Controlled terms:  Computer simulation  -  Cooling  -  Electric fields  -  Electric insulation  -  Electric network analysis  -  Electric potential  -  Evaporation  -  Stators
Uncontrolled terms:  Distribution rule  -  Evaporative cooling  -  High voltage  -  Insulation structures  -  Numerical simulation  -  Power generators  -  Simulation result  -  Stator insulation  -  Temperature field
Classification code:  723.5 Computer Applications  -  715 Electronic Equipment, General Purpose and Industrial  -  705.1 Electric Machinery, General  -  704 Electric Components and Equipment  -  802.3 Chemical Operations  -  703.1.1 Electric Network Analysis  -  644.3 Refrigeration Equipment and Components  -  643.4 Air Conditioning Equipment and Components  -  641.2 Heat Transfer  -  701.1 Electricity: Basic Concepts and Phenomena
Database:  Compendex
Compilation and indexing terms, © 2009 Elsevier Inc.
 
© 2009 Elsevier Inc. All rights reserved.
发布时间:2010-05-16