Scale modeling of radiation in enclosures with absorbing/emitting and isotropically scattering media

Journal Article · Fri May 01 00:00:00 EDT 1987 · Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States)

DOI:https://doi.org/10.1115/1.3248106· OSTI ID:6063745

Liu, Hsingpang; Howell, J R ^[1]

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1. Univ. of Texas, Austin (United States)

Exchange factor analysis has been shown to be an alternative to zonal analysis in enclosures with participating media. An experimental measurement of exchange factors for a cubic enclosure has been done, and practical problems associated with the measurements are discussed. The effects of isotropic scattering and absorption-isotropic re-emission processes are known to be the same for their contribution to energy exchange paths in systems with equal optical thickness. The measurement of these exchange factors is achieved by using an enclosure containing a near-isotropically scattering medium. The heat transfer results for the pure radiation case are demonstrated by using these experimentally determined exchange factors in the analysis, and are compared with the analytical results.

• OSTI ID: 6063745
• Journal Information: Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States), Journal Name: Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States) Vol. 109:2; ISSN 0022-1481; ISSN JHTRA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
CAVITIES
DATA
ENERGY TRANSFER
EXPERIMENTAL DATA
FURNACES
HEAT TRANSFER
INFORMATION
MATHEMATICS
NUMERICAL ANALYSIS
NUMERICAL DATA
RADIANT HEAT TRANSFER
SCALE MODELS
STRUCTURAL MODELS