LoginUsually, the performance of fan-coils is defined and measured in the laboratories only through thermal quantities. However, comfort conditions within a room depend also on the air flow pattern determined by the appliance. Therefore, an experimental procedure to evaluate the fluid dynamic performance of fan-coils has been developed. The fan-coil is tested using a thermostatic chamber (calorimeter) in which, along with the usual thermal quantities (temperatures, heat flows), the main air flow pattern of the jet (air velocity and turbulence intensity) has been measured in isothermal conditions using an ultrasonic anemometer. The thermal and flow fields in the chamber have also been determined both in the heating and cooling operation modes, and the results have been used to evaluate the global and local discomfort in the test room.
Laboratory assessment of the fluid dynamic performance of fan-coils.
Year:
1998
Bibliographic info:
Sweden, Stockholm, KTH Building Services Engineering, 1998, proceedings of Roomvent 98: 6th International Conference on Air Distribution in Rooms, held June 14-17 1998 in Stockholm, Sweden, edited by Elisabeth Mundt and Tor-Goran Malmstrom, Volume 2