The Effect of Sink Temperature on a Capillary Pumped Loop Employing a Flat Evaporator and Shell and Tube Condenser

Cerza, M. ; Herron, R.C. ; Harper, J.J.

Lockheed Martin

关键词: Evaporators;    Subcooling;    42 Engineering;    Water;    Heat Sinks;   

DOI  :  10.2172/821698
RP-ID  :  LM-02K011
RP-ID  :  AC12-00SN39357
RP-ID  :  821698

美国|英语

来源: UNT Digital Library

【 摘 要 】

An experimental facility for conducting research on capillary pumped loop (CPL) systems was developed. In order to simulate shipboard cooling water encountered at various locations of the ocean, the heat sink temperature of the facility could be varied. A flat plate, CPL evaporator was designed and tested under various heat sink temperatures. The sink temperature ranged from 274.3 to 305.2 K and the heat input varied from 250 to 800 W which corresponds to heat fluxes up to 1.8 W/cm{sup 2}. The CPL flat plate evaporator performed very well under this range of heat input and sink temperatures. The main result obtained showed that a large degree of subcooling developed between the evaporator vapor outlet line and liquid return line. This condensate depression increased with increasing heat input.