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A gas mixture of 2 5 % O 2 , 5 0 % N 2 , and 2 5 % CO 2 vapour by volume
A gas mixture of O N and CO vapour by volume flows between two large parallel black plates separated by m at a total pressure of atm and temperature of C The length and width of the plates are and m respectively. The plates are at the temperature of Ca Calculate the emissivity of the gas mixture under the flow condition between the
plates.
b Calculate the absorptivity of the gas mixture under the flow condition between
the plates.
c Calculate the net radiative heat flux to the plates.
d Calculate the rate at which heat is emitted from the surface to the gas.Answers: a b c kWm d kW
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