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An Experimental Study on the Thermal Load of a Cryochamber with Radiation Shields  

Kim, Young-Min (Graduate School, Kookmin University)
Kang, Byung-Ha (School of Mechanical and Automotive Engineering, Kookmin University)
Park, Seong-Je (Energy System Research Center, KIMM)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.20, no.1, 2008 , pp. 11-16 More about this Journal
Abstract
Infrared (IR) detectors are widely used for such applications as thermoelastic stress analysis, medical diagnostics and temperature measurement. Infrared detectors commonly need to be refrigerated below 80 K, and thus a cooling system should be equipped together with the detector system. The cooling load, which should be removed by the cooling system to maintain the nominal operating temperature of the detector, critically depends on the insulation efficiency of the cryochamber housing the detector. Thermal load of a cryochamber is attributed to the conduction heat transfer through a cold finger, the gases conduction and radiation heat transfer. The thermal loads of an infrared detector cryochamber with a radiation shield are investigated experimentally in present study. Since the effect of radiation heat transfer on thermal loads is significant, radiation shields is installed in the cold finger part to protect heat input through radiation.
Keywords
Cryochamber; Infrared(IR) detector; Radiation shield; Boil-off test; Multi-layer insulation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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