# A thermocouple is used to measure the temperature of a flame in a combustion chamber. If the thermocouple temperature is 1033 K and the walls of the chamber are at 700 K, what is the error in the thermocouple reading

A thermocouple is used to measure the temperature of a flame in a combustion chamber. If the thermocouple temperature is 1033 K and the walls of the chamber are at 700 K, what is the error in the thermocouple reading due to radiation to the walls? Assume all surfaces are black and the convection coefficient is 568 W/(m2 K) on the thermocouple.GIVENA thermocouple in a combustion chamber flameThermocouple temperature (Ttc) = 1033 KChamber wall temperature (Tw) = 700 KConvection coefficient (hc) = 568 W/(m2 ?C)All surfaces are black (ε = 1.0)ASSUMPTIONSConduction along the thermocouple is negligibleSteadystate

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## Principles of heat transfer

ISBN: 978-0495667704

7th Edition

Authors: Frank Kreith, Raj M. Manglik, Mark S. Bohn

Posted Date: November 24, 2011 13:43:17