Temperature and heat-flux distributions in a strip-heated composite slab

Conference · Sun Jan 01 04:00:00 EST 1984

DOI:https://doi.org/10.1115/1.3246894· OSTI ID:6786829

Jones, G F

The steady temperature and heat-flux distributions for a composite slab consistig of a strip-heated, large-conductivity fin in intimate contact with a small-conductivity, convectively cooled substrate are obtained. Such a problem has application to the strip heating of process equipment and laboratory experiments where uniform thermal conditions are desired and where the conductivity of the substrate is small. Analytical methods are used to obtain closed-form solutions for the local temperature and heat flux for the full, two-dimensional problem and for the bounding case of no transverse conduction within the substrate. A design procedure to determine the strip-heater spacing necessary for a prescribed maximum variation in heat flux at he convectively cooled surface is presented. An application example is given and the results discussed. Expressions for the steady temperature and heat flux are also obtained for the limiting cases of infinite heat transfer coefficient and zero-thickness substrate.

• Research Organization: Los Alamos National Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6786829
• Report Number(s): LA-UR-84-166; CONF-840816-2; ON: DE84006016
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
COMPOSITE MATERIALS
FINS
HEAT FLUX
MATERIALS
MATHEMATICAL MODELS
PHYSICAL PROPERTIES
STEADY-STATE CONDITIONS
TEMPERATURE DISTRIBUTION
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES