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Discussion :: Heat Transfer

  1. The inner wall of a furnace is at a temperature of 700°C. The composite wall is made of two substances, 10 and 20 cm thick with thermal conductivities of 0.05 and 0.1 W.m-1.°C-1 respectively. The ambient air is at 30°C and the heat transfer co-efficient between the outer surface of wall and air is 20 W.m-2.°C-1. The rate of heat loss from the outer surface in W.m-2is

  2. A.
    165.4
    B.
    167.5
    C.
    172.5
    D.
    175

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    Workspace

    Answer : Option A

    Explanation :

    No answer description available for this question.


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