Journal
BUILDING AND ENVIRONMENT
Volume 42, Issue 12, Pages 4022-4027Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.buildenv.2006.05.012
Keywords
air-conditioning system; occupants' requests; energy-saving; thermal environment; interactivity
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The thermal environment in an office is not always optimal from the viewpoint of energy-conservation and occupants' comfort. The main reason is that air-conditioning systems are controlled without taking the occupants' needs into account. In this study, we would like to propose a new system to control air-conditioning systems, lighting systems, etc. via occupants' requests. This system collects occupants' requests from their own personal computers and controls the air-conditioning system with logic that balances the needs of occupants and energy consumption. The control logic is referred to as Logic for Building a Consensus and can be adjusted according to operating strategies such as energy-saving or occupants' satisfaction with their environment. Moreover, the variety of feedback motivates occupants to cooperate with energy-saving efforts. An interactive system to use occupants' requests for controlling the air-conditioning system and providing a variety of feedback was developed. A series of cooling experiments were conducted in an open-plan office where about 50 people worked. The results show that this interactive system could save 20% more energy compared with controlling an air-conditioning system at a constant 26 degrees C. (C) 2006 Elsevier Ltd. All rights reserved.
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