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Numerical Analysis on the Transient Cooling Characteristics of an Infrared Detector Cryochamber  

이정훈 (국민대 대학원 기계공학과)
김호영 (KIST 열·유동제어연구센터)
강병하 (국민대 기계·자동차공학부)
Publication Information
Progress in Superconductivity and Cryogenics / v.4, no.2, 2002 , pp. 68-72 More about this Journal
Abstract
This work investigates the transient cooling characteristics of an Infrared (IR) detector cryochamber, which has a critical effect on the cooling load. The current thermal modeling considers the conduction heat transfer through a cold well. the gaseous conduction due to outgassing. and the radiation heat transfer. The transient cooling Performance. i.e. the penetration depth and cooling load, is determined using a finite difference method. It is found that the penetration depth increases as the bore conductivity increases. Gaseous conduction and radiation hardly affect the penetration depth. The transient cooling load increases as the bore conductivity increases. The effects of gaseous conduction and radiation on transient heat transfer are weak at initial stages of cooling. However, their effects become significant as the cooling Process Proceeds.
Keywords
cryochamber; Penetration depth; cooling load; heat transfer;
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  • Reference
1 /
[ S.V.Patankar ] / Numerical Heat Transfer and Fluid Flow
2 A parametric study on the cooling characteristics of an infrared detector cryochamber /
[ H.Y.Kim;B.H.Kang;D.Y.Lee ] / Cryogenics   DOI   ScienceOn
3 /
[ H.Kaplan ] / Practical Applications of Infrared Thermal Sensing and Imaging Equipment SPIE
4 /
[ T.M.Flynn ] / Cryogenic Engineering
5 /
[ F.D.Morten ] / Infrared Detectors and Their Applications
6 /
[ W.M.Rohsenow;J.P.Hartnett ] / Handbook of Heat Transfer
7 /
[ H.S.Carslaw;J.C.Jaeger ] / Conduction of Heat in Solids(2nd ed.)
8 /
[ A.F.Mills ] / Heat Transfer Irwin.
9 Lens design for the infrared /
[ R.E.Fisher;R.Hartmann(ed.);W.J.Smith(ed.) ] / Infrared Optical Design and Fabrication