Radiative heat transfer of ultra-fine powder insulation in nonplanar geometry

Hsin Sen Chu; Chung Jen Tseng

doi:10.1080/02533839.1989.9677214

Radiative heat transfer of ultra-fine powder insulation in nonplanar geometry

Hsin Sen Chu, Chung Jen Tseng

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The purpose of this work is to study the radiation heat transfer through some typical ultra-fine powder insulations. The spectral extinction coefficients for these powders have been measured via infrared transmission measurements. The experimental results are compared with both the dependent and independent scattering and absorption theoretical calculations. The radiative transport process is modeled by the diffusion approximation method. Based on the experimental data, the radiant thermal conductivity between two concentric cylinders and spheres was calculated. The results show that the radiant thermal conductivity between two concentric spheres is about 50 percent higher than that between two cylinders.

Original language	English
Pages (from-to)	715-720
Number of pages	6
Journal	Journal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A/Chung-kuo Kung Ch'eng Hsuch K'an
Volume	12
Issue number	6
DOIs	https://doi.org/10.1080/02533839.1989.9677214
State	Published - Sep 1989

Keywords

Radiative heat transfer
Ultra-fine powder insulation

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10.1080/02533839.1989.9677214

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title = "Radiative heat transfer of ultra-fine powder insulation in nonplanar geometry",

abstract = "The purpose of this work is to study the radiation heat transfer through some typical ultra-fine powder insulations. The spectral extinction coefficients for these powders have been measured via infrared transmission measurements. The experimental results are compared with both the dependent and independent scattering and absorption theoretical calculations. The radiative transport process is modeled by the diffusion approximation method. Based on the experimental data, the radiant thermal conductivity between two concentric cylinders and spheres was calculated. The results show that the radiant thermal conductivity between two concentric spheres is about 50 percent higher than that between two cylinders.",

keywords = "Radiative heat transfer, Ultra-fine powder insulation",

author = "Chu, {Hsin Sen} and Tseng, {Chung Jen}",

note = "Funding Information: The authors gratefully acknowledge thesupport of the National Science Council of R.O.C. on this work through Grant No. NSC77-0401-E009-05 and NSC78-0401-E009-03.",

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TY - JOUR

T1 - Radiative heat transfer of ultra-fine powder insulation in nonplanar geometry

AU - Chu, Hsin Sen

AU - Tseng, Chung Jen

N1 - Funding Information: The authors gratefully acknowledge thesupport of the National Science Council of R.O.C. on this work through Grant No. NSC77-0401-E009-05 and NSC78-0401-E009-03.

PY - 1989/9

Y1 - 1989/9

N2 - The purpose of this work is to study the radiation heat transfer through some typical ultra-fine powder insulations. The spectral extinction coefficients for these powders have been measured via infrared transmission measurements. The experimental results are compared with both the dependent and independent scattering and absorption theoretical calculations. The radiative transport process is modeled by the diffusion approximation method. Based on the experimental data, the radiant thermal conductivity between two concentric cylinders and spheres was calculated. The results show that the radiant thermal conductivity between two concentric spheres is about 50 percent higher than that between two cylinders.

AB - The purpose of this work is to study the radiation heat transfer through some typical ultra-fine powder insulations. The spectral extinction coefficients for these powders have been measured via infrared transmission measurements. The experimental results are compared with both the dependent and independent scattering and absorption theoretical calculations. The radiative transport process is modeled by the diffusion approximation method. Based on the experimental data, the radiant thermal conductivity between two concentric cylinders and spheres was calculated. The results show that the radiant thermal conductivity between two concentric spheres is about 50 percent higher than that between two cylinders.

KW - Radiative heat transfer

KW - Ultra-fine powder insulation

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JO - Journal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A/Chung-kuo Kung Ch'eng Hsuch K'an

JF - Journal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A/Chung-kuo Kung Ch'eng Hsuch K'an

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ER -

Radiative heat transfer of ultra-fine powder insulation in nonplanar geometry

Abstract

Keywords

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