Calculate the heat transfer between two (50*40 cm) parallel plates at constant temperatures of 71 = 100 K and 72 = 50 K that are L- 1 cm apart, assuming the emissivity (r) is 0.6 according to the following conditions. 1. The parallel plates filled with atmospheric air assume the thermal conductivity at the average temperature of 250 K is k=0.021 Heat direction Air Space Heat direction Super-insulation W/m °C for air, Stefan-Boltzmann constant is 5.67*10 *W/m².K* 2. The parallel plates are filled with super-insulated material and have an apparent thermal conductivity of 0.00004 W/m °C.
Calculate the heat transfer between two (50*40 cm) parallel plates at constant temperatures of 71 = 100 K and 72 = 50 K that are L- 1 cm apart, assuming the emissivity (r) is 0.6 according to the following conditions. 1. The parallel plates filled with atmospheric air assume the thermal conductivity at the average temperature of 250 K is k=0.021 Heat direction Air Space Heat direction Super-insulation W/m °C for air, Stefan-Boltzmann constant is 5.67*10 *W/m².K* 2. The parallel plates are filled with super-insulated material and have an apparent thermal conductivity of 0.00004 W/m °C.
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter1: Basic Modes Of Heat Transfer
Section: Chapter Questions
Problem 1.31P: A spherical communications satellite, 2 m in diameter, is placed in orbit around the earth. The...
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