There is a global need for a more sustainable building development. About 50% of energy is used in buildings indicating that buildings provide a considerable potential for operational energy savings. Studies were conducted with the following objectives: to perform a state-of-the-art review of responsive building elements, of integrated building concepts and of environmental performance assessment methods to improve and optimize responsive building elements to develop and optimize new building concepts with integration of responsive building elements, HVAC-systems as well as natural and renewable energy strategies to develop guidelines and procedures for estimation of environmental performance of responsive building elements and integrated building concepts This paper introduces the ideas of this collaborative work within the framework of the Annex44 of the International Energy Agency (IEA) and discusses its usefulness for Hong Kong. Special focus was put on the description of the state of the art of the application of responsive building elements and of integrated building concepts in Hong Kong. A number of interviews of key players in the construction industry in Hong Kong revealed that not many of the established responsive building elements have been applied. This is mainly due to lack of information, lack of incentives, high capital cost, lack of competition between suppliers, lack of guidelines and design tools, lack of practical demonstrations, lack of cooperation between designers. On the other hand energy saving installations are increasingly applied as heat pumps in combination with energy storage, balanced ventilation with heat recovery, cooling towers etc. In Hong Kong in most cases there is no integrated design process for building projects. This means that projects are developed and designed in accordance with the energy performance calculations based on economic energy saving measures.
Proceedings of Joint Ashrae/cibse Symposium "efficient Built Environment for Tomorrow", 2006
Building design; Integrated building concepts; Natural ventilation; Simulation
Main Research Area:
Joint ASHRAE/CIBSE Symposium "Efficient Built Environment for Tomorrow", 2006
American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.