Publisher's Synopsis
In recent years, cooling systems with low-temperature air have gained in popularity within the building services profession, both in Europe and North America. The original motivation for such systems was reducing the space requirements and energy costs.;In these systems, air can be delivered to spaces at temperatures between 3 degrees C and 11 degrees C dependent upon the design of the system and technology used. This is in contrast to the conventional cooling systems where air is delivered in the region of 13 degrees C to 15 degrees C. The reduced supply temperature leads to a lower conditioned air volume requirement and consequential reduction in plant and duct size. Furthermore, energy costs can be reduced, particularly, when low-temperature air systems are linked to some form of thermal storage which uses off peak electrical power.;Nevertheless, as with all novel systems problems can be encountered. This technical note intends to give guidelines to the use of low-temperature air systems, with particular emphasis on room movement. These guidelines have been developed from computer-based predictions of the thermal environment in a typical two-person office, cooled by low-temperature air supplied through slot diffusers.
