Convection heat transfer equation - Heat Transfer

Q.  What is the correct formula for the rate of heat transfer (q) from a surface of body of the area A to the surrounding fluid, when surface of the body is  
at temperature Ts and the surrounding fluid is at temperature T∞?

Where,
k = conductivity of the body
h = coefficient of convection
- Published on 10 Aug 15

a. q = k A (Ts – T∞)
b. q = h A (Ts – T∞)
c. q = (h/k) A (Ts – T∞)
d. q = (1/h) A (Ts – T∞)

ANSWER: q = h A (Ts – T∞)

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