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Building Automation and Energy Management

Academic staff : Prof. Shengwei Wang (team leader), Dr. Linda Fu Xiao, Dr. Horace Kwok-Wai Mui, Prof. K. T. Chan
Research staff: Dr. Zhenjun Ma (post-doctoral fellow), Dr. Yongjun Sun (post-doctoral fellow), Zhengyuan Xu (part-time post-doctoral fellow) Dr. Xuejun Zhang (research associate), Dr. Zhimin Du (research associate), Ms. Na Zhu (research associate), Mr. Chaoyu Zheng (research assistant), Ms. Yaping Lei (research assistant), Ms. Jingfang Shang (research assistant)
Research students: Mr. Diance Gao (PhD student). Mr. Gaoming Ge (PhD student), Mr. Chengchu Yan (PhD student), Mr. Kui Shan (PhD student), Yang Zhao (PhD student), Mr. Xue Xue (PhD student), Ms. Jun Lang (MEng student), Ms. Jingjing Wang (MEng student), Mr. Le Zhao (MEng student)

An Overview

The expertise and strengths of this research group are in the areas of building energy assessment, commissioning and saving; HVAC&R system optimal and robust control; HVAC&R system fault detection and diagnosis; dynamic simulation of building systems, building automation and intelligent building system technologies. The main focus of the research team is building energy saving and environment enhancement through intelligent control and commissioning / diagnosis. A total of over 25 research projects including a number of RGC (Research Grant Council), National Science Foundation of China, National 11-5 key-technology development project, HK-Mainland collaborative research Grant, Guangdong-HK essential domain key breakthrough tender project and other research and technology development projects are succeeded. Recently, a major industry joint research fund is received to support the research on "Building Energy Efficiency through Intelligent Control and Diagnosis" to implement the intelligent energy management and optimal control strategies as well as the life-cycle commissioning in the new landmark building (ICC) in Kowloon Station. The group has been actively involved in the collaborative research within the framework of IEA (International Energy Agency) Energy Conservation in Buildings and Community Systems (ECBCS) programmes over the last 10 years including Annex 30, Annex 34, Annex 40 and Annex 47.


Photo:- a group photo taken in Feb 2009

Supporting Facilities and Tools

The existing facilities and tools include an intelligent building laboratory, HVAC and BMS dynamic simulation packages, optimal and robust control strategies for building systems, fault detection and diagnosis strategies for building and systems, and Building Automation system integration and management platform - IBmanager. These are the outputs of previous research as well as the supporting facilities and tools for the research and application development.

Photo:- A View of IB Lab Optimal Control and Diagnosis Strategies
implemented in IBmanager

The IB Laboratory provides the test facilities for R&D on Intelligent Building technologies, advanced building system control, management and diagnosis, facilities management software development; the facilities to support the teaching/learning of postgraduate and undergraduate subjects on Intelligent Building and Building Automation, as well as the test facilities for postgraduate and undergraduate student research projects.

HVAC/BMS Dynamic Simulation Packages: Simulation packages (including relevant parameter estimation tools), developed in PolyU can be flexibly integrated to simulate typical chilling plants, air-conditioning systems and BMS. Control strategies and system renovation alternatives under development or evaluation can be tested in simulation using the simulation packages. The strategies are used to test the energy, environmental and operational dynamic performance of local and supervisory control strategies, and the performance of diagnosis strategies under different indoor and outdoor conditions conveniently under simulated realistic environment.

Optimal and Robust Control Strategies for Building Systems: Robust Demand Controlled Ventilation (DCV) and AHU robust and optimal control strategy, chiller plant robust and optimal control strategy, air system control strategies for optimized energy and environmental performance, optimal control of chilled water and air distribution systems, and condenser cooling systems, cooling tower plume abatement.

Commissioning, Fault detection and diagnosis strategies for building and systems: Automatic fault detection and diagnosis strategies for building energy performance, HVAC subsystems and their control instrumentations (i.e. sensors, drivers, etc.). The subsystems include chiller plants, air handling units, VAV terminals, chilled water distribution and condenser cooling systems.

Building Automation system integration and management platform: Intelligent building management systems (IBMS) are integrated using the well-known DDC (direct digital control) controllers of open protocols, high quality sensors and control devices, as well as integrated IB subsystems. IBmanager is an open IBMS integration and management platform developed in PolyU based on middleware and Web services technologies to support the integration and management of building automation systems from different vendors, as well as value-added energy management and remote monitoring.

Examples of Recent Funded Projects

  • Air-conditioning System Energy Saving Technologies based on Fault Detection and Diagnosis (Nature Science Foundation of China, 2009)
  • Study on the Thermodynamic Characteristics and Optimal Control of Buildings with Energy Performance Enhanced by Integrating Phase Change Materials (PCMs) (RGC/GRF, 748K, 2009)
  • Development and Site Validation of Online Optimal Control Strategies for Building Central Air-Conditioning Systems (RGC/GRF, 347K, 2008)
  • Development of A Novel Data Fusion Technique for Improving Robustness of Automatic Control and Diagnosis in Large Cooling Plants (RGC/GGF, 306K, 2008)
  • Development of A Sensor-based Adaptive Demand-Controlled Ventilation Strategy for Multi-zone VAV Air-conditioning Systems (RGC/GRF, 477K, 2007)
  • Development of A Model-based Building Energy Performance Diagnostic Tool (RGC/ GRF , 371K, 2006)
  • Building Energy Key Technology Research and Demonstration: Project No.2 – Development on Key Technologies for Energy Building Efficiency, (11-5 National Key Science and Technology Project , Co-PI, 1.7M, 2008)
  • Development of A Robust Fault Diagnostic Tool and Platform for Centralized Monitoring and Management of Building Chiller Plants (RGC,403K, 2005)
  • Development of a Middleware-Based Open Management Platform for Performance Monitoring and Diagnosis of Building Ventilation and Air-Conditioning Systems (RGC, 666K, 2004)
  • Robust and Optimal DDC Control of Outdoor Air Ventilation in Buildings (RGC, 470K, 2001)
  • Modelling and Control of a VAV Air Handler with DX Cooling Coil (RGC, 443K, 2001)
  • Fault Validation and Fault Tolerant Control of Building Automation Systems (RGC, 710K, 2000)
  • Sensor fault diagnosis and validation of Building Management Systems (RGC, 405K, 1999)
  • Building Energy Efficiency through Intelligent Control and Diagnosis (Five years research fund from SHK donation, 2005)
  • New High Efficiency Energy and Water Conservation System Essential Technology (2005 Guangdong-HK essential domain key breakthrough tender project titled, RMB 4.0M)
  • Intelligent Building Technology: Development An Intelligent Building Integrator and Facilities Management on IB system (HK-Mainland Collaborative Research, 800K, 2003)
  • Fault Diagnosis and Sensor Fault Isolation of Centralized Chilling Systems for Intelligent Management and Robust Control (200K, 2002)
  • Development of OPC-based Middleware and XML Web Services for Intelligent Building Integration and Interoperation (Interdisciplinary/Collaborative Research, 250K, 2002)
  • Development of an open intelligent building management & automation system (Industrial Development Fund, 240K, 2002)
  • Development of Intelligent Building Laboratory (PolyU large equipment fund, 1.0M, 2002)
  • Development of Intelligent Building Management Systems by Integration of BACnet and Geographic Information Systems (Dean’s Reserve, 500K, 2001)
  • Development of An Intelligent Building Platform Integrating BMS and FMS on Internet (Interdisciplinary/Collaborative Research, 360K, 2001)

Selected Publications
(Books) 

  • Wang S.W., Intelligent Buildings and Building Automation, Spon Press (Taylor & Francis), London and New York, November 2009
  • Wang S.W. (translated by Wang S.W. and Xu Z.Y.), Intelligent Buildings and Building Automation (Chinese edition), China Architecture and Building Press, Beijing, January, 2010 
  • Chen Y.M. and Wang S.W., Novel Methods for Transient Heat Transfer Analysis of Building Constructure, Science Press, Beijing, 2004
  • Chen Y.M., Wang S.W. and Zhang Ling, System Identification and Its Application in Building Heat and Mass Transfer Processes, China Architecture and Building Press, Beijing, 2004 
  • Kohonen R., Peitsman H., Wang, S.W., Kelly G. et al., Development of Emulation Method, Julkaisija-Utgivare Publisher, Helsinki, Finland, 1993

(Journal papers)

  • 2011 Ma Z.J. and Wang S.W., “Supervisory and Optimal Control of Centralized Chilling Systems using Simplified Adaptive Models and Genetic Algorithm”, Applied Energy,   V88(1), pp.198-211, 2011,  (SCI Journal)
  • 2011 Sun Z.W., Wang S.W. and Ma Z.J. “In-situ Implementation and Validation of a CO2-based Adaptive Demand-Controlled Ventilation Strategy in a Multi-zone Office Building”, Building and Environment, V46(1), pp. 124-133, 2011, (SCI journal)
  • 2010 Xu X.H., Wang S.W., Wang J.B. and Xiao F. “Active pipe-embedded structures in buildings for utilizing low-grade energy sources: A review”, Energy and Buildings, V42(10), pp.1567-1581, 2010, (SCI journal)
  • 2010 Sun Y.J., Wang S.W. and Huang G.S., “A Demand Limiting Strategy for Maximizing Monthly Cost Savings of Commercial Buildings”, Energy and Buildings, V42(11), pp. 2219-2230, 2010, (SCI journal)
  • 2010 Wang S.W. and Ma Z.J., “Control Strategies for Variable Speed Pumps in Super High-Rise Building”, ASHRAE Journal, July, 2010, (SCI journal)
  • 2010 Zhu N., Wang S.W., Xu X.H. and Ma Z.J. “A Simplified Dynamic Model of Building Structures integrated with SSPCM Using GA-based Parameter Identification”,  International Journal of Thermal Sciences, V49(9), pp.1722-1731, 2010, (SCI journal)
  • 2010 Wang S.W., Zhou Q. and Xiao F. “A System-level Fault Detection and Diagnosis Strategy for HVAC Systems Involving Sensor Faults”, Energy and Buildings, V42(4), pp. 477-490, 2010, (SCI journal)
  • 2010 Huang G.S., Wang S.W. and Xu X.H., “Robust Model Predictive Control of VAV Air-Handling Units Concerning Uncertainties and Constraints’, HVAC&R Research, V16(1), pp.15-33, 2010, (SCI Journal)
  • 2010 Sun Y.J., Wang S.W. and Huang G.S. “Model-based Optimal Start Control Strategy for Multi-chiller Plants in Commercial Buildings”, Building Services Engineering Research and Technology, V31(2), pp.113-129, 2010, (SCI journal)
  • 2010 Xu X.H., Wang S.W., Huang G.S., “Robust MPC for temperature control of air-conditioning systems concerning on constraints and multitype uncertainties”, Building Services Engineering Research and Technology, V31(1), pp.39-55 2010, (SCI Journal)
  • 2010 Sun Z.W. and Wang S.W. “A CFD-based Test Method for Control of Indoor Environment and Space Ventilation”, Building and Environment, V45(6), pp.1441-1447, 2010, (SCI journal)
  • 2010 Sun Y.J., Wang S.W., Huang G.S., “Online sensor fault detection and diagnosis method for chiller sequencing control”, International Journal of Thermal Sciences, V49(3), pp. 589-602, 2010, (SCI Journal)
  • 2010 Sun Z.W., Wang S.W., Zhou Q.L. and Hui S.E., “Experimental study on desulfurization efficiency and gas-liquid mass transfer in a new liquid-screen desulfurization system”, Applied Energy, V87(5), pp.1505-1512, 2010, (SCI Journal)
  • 2010 Ma Z.J. and Wang S.W., “Enhancing The Performance of Large Primary-Secondary Chilled Water Systems by Using Bypass Check Valve”, in print, Energy, 2010, (SCI Journal)
  • 2010 Wang S.W., Sun Z.W., Sun Y.J. and Zhu Na, “Online Optimal Ventilation Control of Building Air-conditioning Systems”, in print, Indoor and Built Environment, 2010, (SCI Journal)
  • 2009 Huang G.S., Dexter A.L. and Wang S.W., “Application of two-loop robust control to air-conditioning systems”, Asian Journal of control, V11(6), pp. 677-687, 2009, (SCI journal)
  • 2009 Ma Z.J. and Wang S.W., “An Optimal Control Strategy for Complex Building Central Chilled Water Systems for Practical and Real-Time Applications”, Building and Environment, V44(6), pp.1188-1198, 2009 (SCI journal)
  • 2009 Zhu N., Ma Z.J. and Wang S.W. “Dynamic Characteristics and Energy Performance of Buildings Using Phase Change Materials: A Review”, Energy Conversion and Management, V50(12), pp.3169-3181,2009, (SCI journal)
  • 2009 Zhou Q., Wang S.W. and Ma Z.J. “A Model-based Fault Detection and Diagnosis Strategy for Air-Conditioning Systems”, International Journal of Energy Research, V33(10), pp. 903-918, 2009, (SCI journal)
  • 2009 Wang J.B., Wang S.W., Xu X.H. and Chen Y.M. “Short Time Step Heat Flow Calculation of Building Constructions Based on Frequency-Domain Regression Method", International Journal of Thermal Sciences, V48(12), pp2355-2364, 2009, (SCI Journal)
  • 2009 Zhou Q., Wang S.W. and Xiao F., “A Novel Strategy of Fault Detection and Diagnosis for Centrifugal Chiller Systems”, HVAC&R Research, V15(1), pp.57-76, 2009, (SCI Journal)
  • 2009 Huang G.S., Wang S.W., Xiao X. and Sun Y.J. “A Data Fusion Scheme for Building Automation Systems of Building Central Chilling Plants”, Automation in Construction, V18(3), pp.302-309, 2009, (SCI Journal)
  • 2009 Ma Z.J., Wang S.W. and Xiao F., "Online Performance Evaluation of Alternative Control Strategies for Building Cooling Water Systems Prior to In-situ Implementation",  Applied Energy, V86(5), pp.712-721, 2009 (SCI Journal)
  • 2009 Xiao F., Wang S.W., Xu X.H. and Ge G.M. “An Isolation Enhanced PCA Method with Expert-Based Multivariate Decoupling for Sensor FDD in Air-Conditioning Systems”, Applied Thermal Engineering,  V29(4), pp. 712-722, 2009, (SCI Journal)
  • 2009 Xu X.H., Wang S.W., Sun Z.W. and Xiao F., “A Model-based Optimal Ventilation Control Strategy of Multi-zone VAV Air-conditioning Systems Using Genetic Algorithm”, Applied Thermal Engineering,  V29(1),  pp.91–104, 2009, (SCI Journal)
  • 2009 Ma Z.J. and Wang S.W., “Energy Efficient Control of Variable Speed Pumps in Complex Building Central Air-Conditioning Systems”, Energy and Buildings, V41(2), pp.197-205, 2009, (SCI journal)
  • 2009 Huang G.S. and Wang S.W., “Use of Predicted Information to Improve the Control Performance of Systems with Uncertainties”, Journal of Process Control, V19(3), pp.457-463, 2009, (SCI Journal)
  • 2009 Wang J.B., Wang S.W., Xu X.H. and Xiao F.,  “Evaluation of Alternative Arrangements of a Heat Pump System for Plume Abatement in a Large-Scale Chiller Plant in a Subtropical Region”, Energy and Buildings, V41(6), pp. 596-606, 2009, (SCI journal)
  • 2009 Xiao F. and Wang S.W., “Progress and Methodologies of Lifecycle Commissioning for HVAC Systems to Enhance Building Sustainability – A Review”, Renewable and Sustainable Energy Reviews, V13(5), pp.1144-1149, 2009, (SCI Journal)
  • 2009 Ma Z.J. and Wang S.W., “Building Energy Research in Hong Kong: A Review”,  Renewable and Sustainable Energy Reviews, V13(8), pp.1870–1883, 2009, (SCI Journal)
  • 2009 Huang G.S., Wang S.W. and Xu X.H. “A Robust Model Predictive Control Strategy for Improving the Control Performance of Air Conditioning Systems", Energy Conversion and Management, V50(10), pp.2650-2658, 2009, (SCI journal)
  • 2009 Huang G.S. and Wang S.W., “Use of Uncertainty Polytope to Describe Constraint Processes with Uncertain Time­Delay for Robust Model Predictive Control Applications”, ISA Transactions, V48 (4), pp503-511, 2009, (SCI journal)
  • 2009 Sun Y.J., Wang S.W. and Huang G.S., “Chiller Sequencing Control with Enhanced Robustness for Energy Efficient Operation”, Energy and Buildings, V40(11), pp. 1246-1255, 2009, (SCI journal)
  • 2009 Wu H.J., Wang S.W.,  Zhu D.S. and Ding Y.F. “Numerical analysis and evaluation of an open-type thermal storage system using composite sorbents”, International Journal of Heat and Mass Transfer, V52(21-22), pp.5262-5265,  2009, (SCI journal)
  • 2008 Huang G.S. and Wang S.W., “Use of Uncertainty Polytope to Describe Constraint Processes with
  • 2008 Zhou Q., Wang S.W., Xu X.H. and Xiao F., “A Gray-Box Model of Next-day Building Thermal Load Prediction for Energy-Efficient Control”, International Journal of Energy Research, V32(15), pp.1418-1431, 2008, (SCI journal)
  • 2008 Bai J.B., Wang S.W. and Zhang X.S., “Development of An Adaptive Smith Predictor-based Self-tuning PI Controller for An HVAC System in A Test Room”, Energy and Buildings, V40(12), pp. 2244-2252, 2008, (SCI Journal)
  • 2008 Huang G.S., Wang S.W. and Sun Y.J., “Enhancing the Reliability of Chiller Sequencing Control Using Fused Measurement of Building Cooling Load”, HVAC&R Research, V14(6), pp.941-958, 2008, (SCI Journal)
  • 2008 Wang S.W. and Ma Z.J., “Supervisory and Optimal Control of Building HVAC Systems: A Review”, HVAC&R Research, V14(1), pp.3-32, 2008, (SCI Journal)
  • 2008 Huang G.S. and Wang S.W., “Two-loop Robust Model Predictive Control for the Temperature Control of Air-handling Units”, HVAC&R Research, V14(4), pp.565-580, 2008, (SCI Journal)
  • 2008. Wang S.W. “Wireless networks and their applications in building automation systems’, editorial, HVAC&R Research, V14(4), pp.529-533, 2008, (SCI Journal)
  • 2008. Xu X.H., Wang S.W. and Chen Y.M., “An Improvement to Frequency-Domain Regression Method for Calculating Conduction Transfer Functions of Building Walls”, Applied Thermal Engineering, V28, pp661-667, 2008, (SCI Journal)
  • 2008. Xu X.H., Xiao F. and Wang S.W. “Enhanced chiller sensor fault detection, diagnosis and estimation using wavelet analysis and principle component analysis methods”, Applied Thermal Engineering,V28(2-3), pp.226-237, 2008 (SCI Journal) 2008. Xu X.H. and Wang S.W., “A Mixed-mode Building Energy Model for Performance Evaluation and Diagnosis of Existing Buildings”, Building Services Engineering Research and Technology, Vol.29(1), pp:73-83, 2008, (SCI Journal)
  • 2008. Xu X.H. and Wang S.W., “A Simple Time Domain Calculation Method for Transient Heat Transfer Models”, Energy and Buildings, V40, pp.1682–1690, 2008, (SCI Journal)
  • 2008. Ma Z.J., Wang S.W. and Pau W.K., “Secondary Loop Chilled Water In Super High-Rise”, ASHRAE Journal, V50(5), pp.42-52, 2008, (SCI Journal)
  • 2008. Xu X.H., Wang S.W., “A Simplified Dynamic Model for Existing Buildings Using CTF and Thermal Network Models”, International Journal of Thermal Science, V47, pp. 1249–1262, 2008L, (SCI Journal)
  • 2008. Wang S.W. and Xu X.H. and Ma Z.J., “Evaluation of Plume Potential and Plume Abatement of Evaporative Cooling Towers in a Subtropical Region”, Applied Thermal Engineering, V28(11-12), pp.1471-1484, 2008, (SCI Journal)
  • 2008. Ma Z.J., Wang S.W., Xu X.H. and F Xiao, “A Supervisory Control Strategy for Building Cooling Water Systems for Practical and Real Time Applications”, Energy Conversion and Management, V49, pp.2324–2336, 2008, (SCI Journal)
  • 2008. Tyagi S. K., Wang S. W., Park S. R. and Sharma A., “Economic Considerations and Cost Effectiveness of the Heat Pumps and Solar Collectors for the Control of Visible Plume from Wet Cooling Towers in a Commercial Building”, Renewable and Sustainable Energy Reviews, V12(8), pp.2194-2210, 2008, (SCI Journal)
  • 2008. Wang S.W. and Xu X.H., “Effects of Alternative Control Strategies of Water-Evaporative Cooling Systems on Energy Efficiency and Plume Control: A Case Study”, Building and Environment, V43(11), pp.1973-1989, 2008, (SCI journal)
  • 2008. Tyagi S.K. and Wang S.W. and Park S.R., “Performance Criteria on Different Pressure Ratios of an Irreversible Modified Complex Brayton Cycle”, Indian Journal of Pure & Applied Physics, V46(8), pp. 565-574, 2008 (SCI Journal)
  • 2007. Wang S.W, Xu Z. Y. Cao J.N. and Zhang J.P. “A Middleware for Web Service-enabled Integration and Interoperation of Intelligent Building Systems”, Automation in Construction, V16(1), pp112-121, 2007, (SCI journal)
  • 2007. Yiu C.M. and Wang S.W., “A Multiple ARMAX Modeling Scheme for Forecasting of Air Conditioning System Performance”, Energy Conversion and Management, V48(8), pp. 2276-2285, 2007, (SCI journal)
  • 2007. Xu X.H and Wang S.W. “An Adaptive Demand-controlled Ventilation Strategy with Zone Temperature Reset for Multi-zone Air-conditioning Systems”, Indoor and Built Environment, V16(5), pp.426-437, 2007, (SCI journal)
  • 2007. Tyagi S.K., Wang S.W., Singhal M.K., Kaushik S.C. and Park S.R. “Exergy Analysis and Parametric Study of Concentrating Type Solar Collectors”, International Journal of Thermal Sciences, V46(12), pp.1304-1310, 2007, (SCI journal)
  • 2007. Wu H.J., Wang S.W. and Zhu D.S., “Modelling and Evaluation of Cooling Capacity of Earth-Air-Pipe Systems”, Energy Conversion and Management, V48(5), pp. 1462-1471, 2007E, (SCI journal)
  • 2007. Wu H.J., Wang S.W. and Zhu D.S., “Effects of Impregnating Variables on Dynamic Sorption Characteristics and Storage Properties of Composite Sorbent for Solar Heat Storage”, Solar Energy, V81(7), pp.864-871, 2007, (SCI journal)
  • 2007. Xu X.H. and Wang S.W., “Optimal Simplified Thermal Models of Building Envelope Based on Frequency Domain Regression Using Genetic Algorithm”, Energy and Buildings, V39(5), pp.525-536, 2007, (SCI journal)
  • 2007. Wang S.W., Tyagi S.K., Sharma A. and Kaushik S.C., “Application of Solar Collectors to control Visible plume from Wet Cooling Towers of A commercial building in Hong Kong: A case Study”, Applied Thermal Engineering, V27(8-9), pp. 1394-1404, 2007, (SCI journal)
  • 2007. Tyagi S.K., Wang S.W. and Ma Z.J., “Prediction, potential and Control of plume from wet Cooling Tower of commercial buildings in Hong Kong: A Case Study”, International Journal of Energy Research, V31(8), pp. 778-795, 2007, (SCI journal)
  • 2007. Tyagi S.K., Wang S.W., Chen G.M., Wang Q., Chandra H. And Wu C., “Performance Investigations under Maximum Ecological and Maximum Economic Conditions of A Complex Brayton Cycle”, International Journal of Exergy, V4(1), pp.98-116, 2007, (SCI journal)
  • 2006. Wang S.W. and Xu X.H. “Simplified Building Model for Transient Thermal Performance Estimation Using GA-Based Parameter Identification”, International Journal of Thermal Science, V45(4), pp.419-432, 2006, (SCI journal)
  • 2006. Wang S.W and Xiao F. “Sensor Fault Detection and Diagnosis of Air-Handling Units Using Condition-Based Adaptive Statistical Method”, HVAC&R Research, V12(1), pp.127-150, 2006, (SCI journal)
  • 2006. Wang S.W. and Xu X.H. “Parameter Estimation of Internal Thermal Mass of Building Dynamic Models Using Genetic Algorithm”, Energy Conversion and Management, V47 (13-14), pp. 1927-1941, 2006, (SCI journal)
  • 2006. Wang S.W. “Enhancing the applications of building automation systems for better building energy and environmental performance”, editorial, HVAC&R Research 12(2), pp: 197-199, 2006, (SCI journal)
  • 2006. Chen Y.M., Hao X.L., Zhang G.Q. and Wang S.W. “Flow Meter Fault Isolation in Building Central Chilling Systems Using Wavelet Analysis”, Energy Conversion and Management, V47(13-14), Pp. 1700-1710, 2006, (SCI journal)
  • 2006. Wang S.W. and Cui J.T. “A Robust Fault Detection and Diagnosis Strategy for Centrifugal Chillers”, HVAC&R Research, V12(3), pp.407-428, 2006, (SCI journal)
  • 2006. Xiao F., Wang S.W. and Zhang J.P. “A Diagnostic Tool for Online Sensor Health Monitoring in Air-Conditioning Systems”, Automation in Construction, V15(4), pp. 489-503, 2006, (SCI journal)
  • 2006. Zhu D.S., Wu H.J. and Wang S.W. “Experimental Study on Composite Silica Gel Supported CaCl2 Sorbent for Low Grade Heat Storage”, International Journal of Thermal Science, V45(8), pp. 804-813, 2006, (SCI journal)
  • 2006. Tyagi S.K., Wang S.W. and Kaushik S.C., “Irreversible Modified Complex Brayton Cycle Under-maximum Economic Condition”, Indian Journal of Pure & Applied Physics V44 (8), pp. 592-601, 2006, (SCI journal)
  • 2005 Wang S.W. and Qin J.Y. “Sensor Fault Detection and Validation of VAV Terminals in Air-conditioning Systems’, Energy Conversion and Management, V46(15-16), pp. 2482-2500, 2005, (SCI journal)
  • 2005. Chen Y.M. and S.W. Wang, “A New Procedure for Calculating Periodic Response Factors Based on Frequency Domain Regression Method”, International Journal of Thermal Sciences, V44(4), pp.382-392, 2005, (SCI journal)
  • 2005. Wong J.K.W., Li H. and Wang S.W. “Intelligent Building Research: A Review”, Automation in Construction, V14(1), pp.143-159, 2005, (SCI journal)
  • 2005. Qin J.Y. and Wang S.W., “A Fault Detection and Diagnosis Strategy of VAV Air-Conditioning Systems for Improved Energy and Control Performances”, Energy and Buildings, V37(10), pp. 1035-1048, 2005, (SCI journal)
  • 2005. Wang S.W. and Cui J.T. “Sensor-fault detection, diagnosis and Estimation for Centrifugal Chiller Systems Using Principal Component Analysis Method”, Applied Energy, V82(3), pp. 197-213, 2005, (SCI journal)
  • 2005. Cui J.T. and Wang S.W. “A Model-Based Online Fault Detection and Diagnosis Strategy for Centrifugal Chiller Systems”, International Journal of Thermal Science, V44(10), pp. 986-999, 2005, (SCI journal)
  • 2004 Wang S.W. and Xiao F. “AHU Sensor Fault Diagnosis Using Principal Component Analysis Method”, Energy and Buildings, V36(2), pp.147-160, 2004
  • 2004 Wang S.W. and Xu X.H. “Optimal and Robust Control of Outdoor Ventilation Airflow Rate for Improving Energy Efficiency and IAQ”, Building and Environment, V39(7), pp. 763-773
  • 2004 Wang S.W. and Chen Y.M. “Sensor Validation and Reconstruction for Building Central Chilling Systems Based on Principal Component Analysis”, Energy Conversion and Management, V45(5), pp. 673-695
  • 2004 Chen Y.M. and Wang S.W. “Response to Comments on Calculation of wall conduction transfer coefficients by regression in the frequency domain”, Building and Environment, V39(5), pp. 591-593
  • 2004 Wang S.W. and Zhu D.S. “Adsorption Heat Pump Using An Innovative Coupling Refrigeration Cycle”, Adsorption, V10(1), pp.47-55, 2004
  • 2004 Wang S.W. and Jiang Z.M. “Valve Fault Detection and Diagnosis Based on CMAC Neural Networks”, Energy and Buildings, V36(6), pp.599-610
  • 2004 Xu X.H., Wang S.W. and Shi W.Z. “A Robust Sequencing Control Strategy for Air-Handling Units”, Building Services Engineering Research and Technology, Building Services Engineering Research and Technology, V25(2), pp. 141-158
  • 2004 Wang S.W., Xu Z.Y., Li H. Hong J. and Shi W. Z. “Investigation on Intelligent Building Standard Communication Protocols and Application of IT Technologies, Automation in Construction, V13(5), pp. 607-619
  • 2004 Yang R.Y., Cao Y., Li H., Wang S.W. and Shen Q.P. “Automatic acquisition of rules for 3D reconstruction of construction components” Automation in Construction, V13(5), pp. 545-553
  • 2004 Wang S.W. and Xiao F., “Detection and Diagnosis of AHU Sensor Faults Using Principal Component Analysis Method”, Energy Conversion and Management, V45(17), Pages 2667-2686
  • 2004 He L. Zhu D.S. Fan Z.L. and Wang S.W. “Heat Transfer Augmentation for The Flow of Highly Viscous Fluids in Tubes Using Cross Trapezoid Wave Tape Inserts”, Journal of Enhanced Heat Transfer, V11(4), pp.371-377
  • 2004 Cui J.T. and Wang S.W. “Application of CFD in evaluation and energy-efficient design of air curtains for horizontal refrigerated display cases”, International Journal of Thermal Sciences, V43(10), Pages 993-1002
  • 2003 Wang S.W. and Chen Y.M. “Transient Heat Flow Calculation for Multilayer Constructions Using Frequency-Domain Regression Method”, Building and Environment, V38(1), pp. 45-61
  • 2003 Wang S.W. and Zhu D.S. “Application of CFD in Retrofitting Air-Conditioning Systems in Industrial Buildings”, Energy and Buildings, V35, pp.893-902, 2003
  • 2003 Jiang Z.M., Wang S.W. and Lin T.Q. “Variable Structure Control of Electrohydraulic Servo Systems Using Fuzzy CMAC Neural Network”, Transactions of The Institute of Measurement and Control, V25 (3), pp. 185-201
  • 2003 Jiang Z.M. and Wang S.W. “A General Learning Scheme for CMAC-based Controller”, Neural Processing Letters, V18(2), pp. 125-138
  • 2003 Xie J.L. and Wang S.W. “Integrating LonWorks Network through Internet”, City & Building Intelligent Systems, V6(2), pp. 49-52
  • 2003 Chen Y.M., Wang S.W. and Zuo Z. “An Approach to Calculate Transient Heat Flow through Multiplayer Spherical Structures, International Journal of Thermal Sciences, V42 (2), pp. 805-812, 2003
  • 2003 Chen Y.M., Wang S.W. and Zuo Z. “A procedure for calculating transient thermal load through multilayer cylindrical structures”, Applied Thermal Engineering, V23 (16), pp.2133-2145
  • 2003 Xiao F. and Wang S.W. “Commissioning of AHU Sensors Using Principal Component Analysis Method”, Building Services Engineering Research and Technology, V24(3), pp.179-189, 2003
  • 2003 Xu Z.Y., Wang S.W. and Fisher D. M., "BACnet, LonWorks and Building Automation Communication Protocols Standards", Building Intelligence, V4(2), pp.32-37
  • 2003 Xu Z.Y. and Wang S.W. “Integrating BACnet and Building Automation Systems via Internet”, National Blue Book – Residential Building Environment and Applications of Intelligent Technology, version 2003, pp.61-64
  • 2002 Wang S.W. and Xu X.H. “A Robust Control Strategy of Combined DCV and Economizer Control for Air-conditioning Systems”, Energy Conversion and management, V43 (18), pp. 2569-2588
  • 2002 Wang SW. and Zhu DS “A Novel Type of Coupling Cycle for Adsorption Heat Pumps”, Applied Thermal Engineering, V22(9), pp. 1083-1088
  • 2002 Wang S.W. and Xie J.L. “Integrating Building Management System and Facility Management on Internet”, Automation in Construction, V11(6), pp. 707-715
  • 2002 Wang JB, Wang SW and Burnett J. “An Integrated Robust Strategy for Diagnosing Sensor Faults in Building Chilling Systems”, International Journal of HVAC&R Research, 8(2), pp. 159-178.
  • 2002 Wang S.W. and Chen Y.M. “Fault-Tolerant Control for Outdoor Air Flow in Buildings Based on Neural-Network”, Building and Environment,V37(7), pp. 691-704
  • 2002 Wang S.W. and Chen Y.M. “A Simple Procedure for calculating thermal response factors and conduction transfer functions of multiplayer walls”, Applied Thermal Engineering, V22(3), pp333-338
  • 2002 Wang S.W. and Wang J.B. “Automatic Sensor Evaluation in BMS Commissioning of Building Refrigeration Systems “, Automation in Construction, V11(1), pp59-73.
  • 2002 Wang S.W. and Wang J.B. “Robust Sensor Fault Diagnosis and Validation in HVAC Systems”, Transactions of The Institute of Measurement and Control, V24(3), pp231-262.
  • 2002 Zhu D.S. and Wang SW. “Experimental Investigation of Contact Resistance in Adsorber of Solar Adsorption Refrigeration”, Solar Energy, V73(3), pp.177-185
  • 2001 Chen Y.M. and Wang S.W. “Frequency Domain Regression Method for Estimating CTF Model of Building Multilayer Constructions”, Applied Mathematical Modelling, V25(7) pp 579-592
  • 2001 Chen Y.M and Wang S.W. “Transfer Function Model and Frequency Domain Validation of Moisture Sorption in Air-conditioned Buildings”, Building and Environment, V36(5) pp 579-588
  • 2001 Wang S.W., Wang J.B. and Burnett J. “Validating BMS Sensors for Chiller Condition Monitoring”, Transactions of The Institute of Measurement and Control, V23(4), pp.201-225
  • 2001 Wang S.W. and Chen Y.M. “A Novel and Simple Building Load Calculation Model for Building and System Dynamic Simulation”, Applied Thermal Engineering, V21 (6), pp. 683-702
  • 2001 Wang S.W. and Zheng Ling “Dynamic and Real-time Simulation of BMS and Air-conditioning System as A ‘Living’ Environment for Learning/Training”, Automation in Construction, V10(4), pp.487-505
  • 2001 Wang S.W. and Burnett J. “Online Adaptive Control for Optimizing Variable-Speed Pumps of Indirect Water-cooled Chilling Systems”, Applied Thermal Engineering, 21(11), pp 1083-1103
  • 2000 Wang S.W. and Jin X.Q. “Model-based Optimal Control of VAV Air-conditioning System Using Genetic Algorithm”, Building and Environment, Volume 35, No.6, pp. 471-487
  • 2000 Wang S.W., Wang J.B. and Burnett J. “A Mechanistic Model of Centrifugal Chillers For HVAC System Dynamic Simulation”, Building Services Engineering Research and Technology, Volume 21(2), pp. 73-83, 2000
  • 2000 Yiu C.M., Wang S.W and Yik W.H. “Assessment on Practical Applications of Outdoor Air Economizer in Hong Kong”, Building Services Engineering Research and Technology, Volume 21(3), pp. 187-198, 2000