The Hydraulic Refrigeration System (HRS) is a vaporcompression system that accomplishes the compression and condensation of the refrigerant in a unique manner, by entraining refrigerant vapor in a down-flowing stream of water and utilizing the pressure head of the water to compress and condense the refrigerant. A multi-stage HRS was designed, fabricated, and tested using n-butane as the refrigerant. In general, both the refrigeration rate and the Coefficient of Performance (COP) decreased with a corresponding increase in the compression fluid temperature of the third and final stage. The refrigeration rate and COP were found to increase with a corresponding increase in evaporator temperature. The predictions of an enhanced model incorporating two-phase hydraulic losses show excellent agreement with the experimental data. The HRS offers an attractive alternative to conventional vapor-compression systems, especially in applications where direct-contact heat exchange in the evaporator is desirable.
|Original language||English (US)|
|Title of host publication||American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD|
|Number of pages||7|
|State||Published - 1998|
ASJC Scopus subject areas
- Fluid Flow and Transfer Processes
- Mechanical Engineering