Definitions for "HOT GAS BYPASS"
This is a refrigeration system. To control the suction pressure of the BIG FOUR (20-30 Hp) compressors during the refrigeration operation.
A piping system that by passes hot refrigerant gas from condenser into low-pressure side.
A system where some high pressure refrigerant vapor at compressor discharge conditions is returned directly to the cooler pressure, without being condensed. This system is sometimes used to permit a chiller to operate at a lower capacity than would otherwise be possible. The efficiency at the low load suffers because the bypassed gas, which does no useful work, still has to be compressed by the compressor.