Indoor Environmental Quality
Researchers:
Prof. J. L. Niu
Dr. C. K. Chau
Prof. C. M. Mak
Dr. M. Y. Chan
Dr. Horace K. W. Mui
Prof. S. K. Tang
Collaborators:
Prof Per Heiselberg, Hybrid Ventilation Center, Aalborg University, Denmark Prof Phil Jones, University of Wales, UK
Prof R Y Zhao and Prof H F Di, Department of Building Science and Technology, Tsinghua University, China Prof H Yoshino, Tohoku University, Japan
Prof R Luo, Tsinghua University, Dr Z J Zhu, The University of Science of Technology of China
Research in Indoor Environmental Quality
- Development of low-energy air conditioning systems, which integrate radiant cooling, desiccant dehumidification, and personal ventilation systems.
- Application of turbulence modeling and CFD (Computational Fluid Dynamics) for building ventilation study; assessment of spread risks of air-borne and droplets-transmitted diseases in built environment
- Characterization of indoor air pollutant emission from building materials and development of standard testing methods.
- Total exposure assessment of Hong Kong population to indoor air pollutant; evaluate the economic health benefit associated with improvement in indoor air quality.
- Indoor air quality control in special premises: schools; underground carparks; shopping malls
- Tracer-gas technique for building ventilation measurements
- Development of air-cleaning technologies including PCO (Photo-Catalytic-Oxidization) technologies
Consultancy Services are provided to the local government and industry
- Diagnosis of indoor air quality, and auditing of building energy consumptions
- Testing of air-cleaning efficiencies of commercial products
- CFD(Computational fluid dynamics) analysis of building ventilation and wind environments
Research Projects:
- Integration of desiccant cooling and cooled-ceiling in commercial air-conditioning systems (HK$495,000, Research Grant Council)
- Optimized air supply temperature and velocity with radiant cooling and desiccant humidity control a/c systems (HK$581,817, Research Grants Council)
- Numerical and experimental investigations of PER and thermal comfort under micro-climate control conditions (HK$503,083, Research Grants Council)
- Developing mass-transfer-based models for the prediction of indoor air pollutant emissions from building materials in real buildings (HK$469,404, Research Grants Council)
- Fuzzy air quality indices for management of indoor air quality in air conditioned buildings (HK$324,000, Research Grants Council)
- Development of an ICU extraction equipment for preventing the transmission of contaminant exhaled air in intensive care unit (ICU) or isolation ward of hospital (HK$95,000, The Hong Kong Polytechnic University)
- A new composite thermal comfort and indoor air quality model for air-conditioned offices (HK$453,404, Research Grants Council)
- The total exposure assessment of Hong Kong population to various air pollutants (HK$680,371, The Hong Kong Polytechnic University)
