The Radiation Heat Treansfer Analysis of the Cryochamber

Yong Ju Hong; Seong Je Park; Hyo Bong Kim; Deuk Yong Koh; Young Don Choi

doi:10.1063/1.1774731

The Radiation Heat Treansfer Analysis of the Cryochamber

Yong Ju Hong, Seong Je Park, Hyo Bong Kim, Deuk Yong Koh, Young Don Choi

* Honorary professors

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

The cooling load, which should be removed by the cooling system to maintain the nominal operating temperature of a cryochamber, depends on the thermal insulation efficiency of the cryochamber. Therefore, to decrease and minimize the heat loss of the cryochamber has become a big problem in the design stage, in considering the very low thermal efficiency and small cooling capacity of the cryocooler. Radiation and conduction heat transfer occur simultaneously in a cryochamber. The radiation heat transfer from the hot surface to the cold surface depends on the emissivity, temperature, area and radiation exchange factor. In the present work, the energy equation, which includes the rarefied gas conduction, radiation between the boundary surfaces and solid conduction, is solved to evaluate the steady cooling loads at the cold finger of a small cryocooler. The surface to surface radiation model is used for the calculation of the radiation exchange factor. This paper presents the effects of the emissivity of the materials and the radiation shield on the cooling load of a cryocooler.

Original language	English
Title of host publication	Advances in Cryogenic Engineering
Subtitle of host publication	Transactions of the Cryogenic Engineering Conference - CEC
Editors	John Pfotenhauer, Steven Van Sciver, Albert Zeller, Jonathan Demko, Christopher Rey, John G. Weisend II, John Barclay, Michael DiPirro, Quan-Sheng Shu, Peter Kittel, Edward Daly, John R. Hull, Jennifer Lock, Joseph Waynert, Susan Breon, James Maddocks, John Zbasnik, Patrick J. Kelley, Arkadiy Klebaner
Publisher	American Institute of Physics Inc.
Pages	587-594
Number of pages	8
ISBN (Electronic)	0735401861
DOIs	https://doi.org/10.1063/1.1774731
Publication status	Published - 2004 Jun 23
Event	2003 Cryogenic Engineering Conference, CEC 2003 - Anchorage, United States Duration: 2003 Sept 22 → 2003 Sept 26

Publication series

Name	AIP Conference Proceedings
Volume	710
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	2003 Cryogenic Engineering Conference, CEC 2003
Country/Territory	United States
City	Anchorage
Period	03/9/22 → 03/9/26

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.1774731

Cite this

Hong, Y. J., Park, S. J., Kim, H. B., Koh, D. Y., & Choi, Y. D. (2004). The Radiation Heat Treansfer Analysis of the Cryochamber. In J. Pfotenhauer, S. Van Sciver, A. Zeller, J. Demko, C. Rey, J. G. Weisend II, J. Barclay, M. DiPirro, Q-S. Shu, P. Kittel, E. Daly, J. R. Hull, J. Lock, J. Waynert, S. Breon, J. Maddocks, J. Zbasnik, P. J. Kelley, & A. Klebaner (Eds.), Advances in Cryogenic Engineering: Transactions of the Cryogenic Engineering Conference - CEC (pp. 587-594). (AIP Conference Proceedings; Vol. 710). American Institute of Physics Inc.. https://doi.org/10.1063/1.1774731

The Radiation Heat Treansfer Analysis of the Cryochamber. / Hong, Yong Ju; Park, Seong Je; Kim, Hyo Bong et al.

Advances in Cryogenic Engineering: Transactions of the Cryogenic Engineering Conference - CEC. ed. / John Pfotenhauer; Steven Van Sciver; Albert Zeller; Jonathan Demko; Christopher Rey; John G. Weisend II; John Barclay; Michael DiPirro; Quan-Sheng Shu; Peter Kittel; Edward Daly; John R. Hull; Jennifer Lock; Joseph Waynert; Susan Breon; James Maddocks; John Zbasnik; Patrick J. Kelley; Arkadiy Klebaner. American Institute of Physics Inc., 2004. p. 587-594 (AIP Conference Proceedings; Vol. 710).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Hong, YJ, Park, SJ, Kim, HB, Koh, DY & Choi, YD 2004, The Radiation Heat Treansfer Analysis of the Cryochamber. in J Pfotenhauer, S Van Sciver, A Zeller, J Demko, C Rey, JG Weisend II, J Barclay, M DiPirro, Q-S Shu, P Kittel, E Daly, JR Hull, J Lock, J Waynert, S Breon, J Maddocks, J Zbasnik, PJ Kelley & A Klebaner (eds), Advances in Cryogenic Engineering: Transactions of the Cryogenic Engineering Conference - CEC. AIP Conference Proceedings, vol. 710, American Institute of Physics Inc., pp. 587-594, 2003 Cryogenic Engineering Conference, CEC 2003, Anchorage, United States, 03/9/22. https://doi.org/10.1063/1.1774731

Hong YJ, Park SJ, Kim HB, Koh DY, Choi YD. The Radiation Heat Treansfer Analysis of the Cryochamber. In Pfotenhauer J, Van Sciver S, Zeller A, Demko J, Rey C, Weisend II JG, Barclay J, DiPirro M, Shu Q-S, Kittel P, Daly E, Hull JR, Lock J, Waynert J, Breon S, Maddocks J, Zbasnik J, Kelley PJ, Klebaner A, editors, Advances in Cryogenic Engineering: Transactions of the Cryogenic Engineering Conference - CEC. American Institute of Physics Inc. 2004. p. 587-594. (AIP Conference Proceedings). doi: 10.1063/1.1774731

Hong, Yong Ju ; Park, Seong Je ; Kim, Hyo Bong et al. / The Radiation Heat Treansfer Analysis of the Cryochamber. Advances in Cryogenic Engineering: Transactions of the Cryogenic Engineering Conference - CEC. editor / John Pfotenhauer ; Steven Van Sciver ; Albert Zeller ; Jonathan Demko ; Christopher Rey ; John G. Weisend II ; John Barclay ; Michael DiPirro ; Quan-Sheng Shu ; Peter Kittel ; Edward Daly ; John R. Hull ; Jennifer Lock ; Joseph Waynert ; Susan Breon ; James Maddocks ; John Zbasnik ; Patrick J. Kelley ; Arkadiy Klebaner. American Institute of Physics Inc., 2004. pp. 587-594 (AIP Conference Proceedings).

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abstract = "The cooling load, which should be removed by the cooling system to maintain the nominal operating temperature of a cryochamber, depends on the thermal insulation efficiency of the cryochamber. Therefore, to decrease and minimize the heat loss of the cryochamber has become a big problem in the design stage, in considering the very low thermal efficiency and small cooling capacity of the cryocooler. Radiation and conduction heat transfer occur simultaneously in a cryochamber. The radiation heat transfer from the hot surface to the cold surface depends on the emissivity, temperature, area and radiation exchange factor. In the present work, the energy equation, which includes the rarefied gas conduction, radiation between the boundary surfaces and solid conduction, is solved to evaluate the steady cooling loads at the cold finger of a small cryocooler. The surface to surface radiation model is used for the calculation of the radiation exchange factor. This paper presents the effects of the emissivity of the materials and the radiation shield on the cooling load of a cryocooler.",

author = "Hong, {Yong Ju} and Park, {Seong Je} and Kim, {Hyo Bong} and Koh, {Deuk Yong} and Choi, {Young Don}",

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N2 - The cooling load, which should be removed by the cooling system to maintain the nominal operating temperature of a cryochamber, depends on the thermal insulation efficiency of the cryochamber. Therefore, to decrease and minimize the heat loss of the cryochamber has become a big problem in the design stage, in considering the very low thermal efficiency and small cooling capacity of the cryocooler. Radiation and conduction heat transfer occur simultaneously in a cryochamber. The radiation heat transfer from the hot surface to the cold surface depends on the emissivity, temperature, area and radiation exchange factor. In the present work, the energy equation, which includes the rarefied gas conduction, radiation between the boundary surfaces and solid conduction, is solved to evaluate the steady cooling loads at the cold finger of a small cryocooler. The surface to surface radiation model is used for the calculation of the radiation exchange factor. This paper presents the effects of the emissivity of the materials and the radiation shield on the cooling load of a cryocooler.

AB - The cooling load, which should be removed by the cooling system to maintain the nominal operating temperature of a cryochamber, depends on the thermal insulation efficiency of the cryochamber. Therefore, to decrease and minimize the heat loss of the cryochamber has become a big problem in the design stage, in considering the very low thermal efficiency and small cooling capacity of the cryocooler. Radiation and conduction heat transfer occur simultaneously in a cryochamber. The radiation heat transfer from the hot surface to the cold surface depends on the emissivity, temperature, area and radiation exchange factor. In the present work, the energy equation, which includes the rarefied gas conduction, radiation between the boundary surfaces and solid conduction, is solved to evaluate the steady cooling loads at the cold finger of a small cryocooler. The surface to surface radiation model is used for the calculation of the radiation exchange factor. This paper presents the effects of the emissivity of the materials and the radiation shield on the cooling load of a cryocooler.

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The Radiation Heat Treansfer Analysis of the Cryochamber

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