MEASUREMENT OF INDOOR DISCHARGE AIR-FLOW OF ROOM AIR CONDITIONER BY ROTATION FREQUENCY METER

Abstract

In order to measure indoor discharge air-flow rate of air conditioners continuously in-situ by measuring rotation frequency of the indoor unit fan, a rotation frequency meter was developed. And then, we measured indoor discharge air-flow rate of an air conditioner in a test chamber by the method defined by JIS with measuring the rotation frequency, obtained the relationship between the indoor discharge air-flow rate and the rotation frequency, and clarified the influence of the operation modes (heating or cooling) and the indoor discharge air-flow direction on the air-flow rate.