Transcription of STEADY HEAT CONDUCTION
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STEADY HEAT CONDUCTION
STEADY heat CONDUCTIONIn heat transfer analysis, we are often interested in the rate of heat transferthrough a medium under STEADY conditions and surface temperatures . Suchproblems can be solved easily without involving any differential equationsby the introduction of the thermal resistance conceptin an analogous mannerto electrical circuit problems. In this case, the thermal resistance correspondsto electrical resistance, temperature difference corresponds to voltage, and theheat transfer rate corresponds to electric start this chapter with one-dimensional STEADY heat conductionin aplane wall, a cylinder, and a sphere, and develop relations for thermal resis-tancesin these geometries.
area, and the temperature difference, but is inversely proportional to the wall thickness.Also, once the rate of heat conduction is available, the tem-perature T(x) at any location x can be determined by replacing T 2 in Eq. 3–3 by T, and L by x. Thermal Resistance Concept Equation 3–3 for heat conduction through a plane wall can be ...
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