Publisher's Synopsis
This document details findings of investigations of the effect of providing user-adjustable air diffusers on the environment in the occupancy zone. The method of control implemented in a test cell is detailed and the interaction with other occupants' environment within a multi-diffuser configuration is considered.;Air movement in ventilated and air-conditioned spaces is dependent on the volume flow rate and direction of discharge of supply air terminal devices. The sensation of thermal comfort experienced by occupants is strongly influenced by air velocity, and hence, the provision of control of supply air terminal devices for occupants allows them to regulate their environment. Further, the belief that regulation is possible is beneficial in reducing the dissatisfaction, frequently prevalent in air-conditioned buildings, which stems from the occupants' inability to exercise control.;Although personal local supply systems are available, the facility of occupant control is not currently extended to supply terminals serving larger spaces. The feasibility of occupant control is discussed here in terms of technology and economics. Also treated is the effectiveness of the technique in providing a more flexible thermal environment.;The conclusions are that the technology is reliable and inexpensive, making use of the established techniques of occupant remote control used for domestic electronic equipment, and that the technique is a powerful method of indoor microclimate control. Suitable applications are identified and design guidance provided.
