Combined laminar forced convection and nongray-radiation heat transfer to carbon dioxide flowing in a nonblack, plane-parallel duct

Journal Article · Wed Nov 01 04:00:00 EST 1995 · Numerical Heat Transfer. Part A, Applications

DOI:https://doi.org/10.1080/10407789508913762· OSTI ID:194254

Kamiuto, K ^[1]

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1. Oita Univ. (Japan)

Simultaneous forced convection and nongray-radiation heat transfer to flowing carbon dioxide in a nonblack duct is analyzed theoretically based on the two-parameter wideband spectral model for the absorption coefficients of infrared gases. The validity of the P{sub 1} approximation is also addressed. It is found that, for a nonblack duct, the convective Nusselt number is much larger than for pure convection and that the P{sub 1} approximation somewhat overpredicts the total Nusselt number due to the overestimation of radiation effects, irrespective of the surface emissivity of a duct, but its accuracy is fully acceptable.

• Sponsoring Organization: USDOE
• OSTI ID: 194254
• Journal Information: Numerical Heat Transfer. Part A, Applications, Journal Name: Numerical Heat Transfer. Part A, Applications Journal Issue: 5 Vol. 28; ISSN NHAAES; ISSN 1040-7782
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
ABSORPTION
DUCTS
FORCED CONVECTION
INFRARED RADIATION
RADIANT HEAT TRANSFER