The parameter(s) responsible for loss of heat from a hot pipe surface in
a room without fans would include________.
temperature of the surface and air in
the room
emissivity of the surface
length and diameter of the pipe
all options are correct
all options are correct
Heat is lost from a body by three
modes Conduction, Convection and Radiation. Both conduction and convection heat
transfer depends on temperature of surface and air temperature in the room. In
all modes of heat transfer, the surface area exposed is also important. As
larger the exposed area greater will be heat loss. The radiation heat transfer
depends on the emissivity of the surface. So all the given options are correct.
And by the equation we can see that all parameters are dependent
Hence, the correct option is (D).
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