Description

Almost all applications of refrigerating compressors require some kind of capacity control. This may be caused by a consistently variable cooling load or simply by overdesign of the system. The capacity can be controlled by several methods. The most common are intermittent running, variable speed, hot.gas bypass, suction-line throttling, and suction-valve unloading.

Since no detailed comparisons of capacity-control systems were available, a systematic study of the thermodynamic performance of t hree capacity-control systems was undertaken. The results of these studies of suction-valve unloading, suction-line throttling, and hot-gas bypass are presented in this paper in the form of closed-form expressions and parametric curves.

Citation: ASHRAE Transactions, Volume 77, Part 1, Philadelphia, PA

Product Details

Published:

1971

Number of Pages:

5

File Size:

1 file , 410 KB

Product Code(s):

D-PH-2182