EXAMIANS
Solid angle subtended by the finite surface at the radiating element is
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Analogy between mass and heat transfer is not applicable in case of
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Baffle spacing
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Minimum recommended baffle spacing in a shell and tube heat exchanger is about (where, D = shell diameter)
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Three solid objects of the same material and of equal mass-a sphere, a cylinder (length = diameter) and a cube are at 500°C initially. These are dropped in a quenching bath containing a large volume of cooling oil each attaining the bath temperature eventually. The time required for 90% change in temperature is the smallest for
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Indirect contact heat exchangers are preferred over direct contact heat exchangers, because
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If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface temperature follows __________ law.
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Which of the following forced convection heat transfer equation accounts for the liquid viscosity effect for viscous liquids?
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Viscosity of gases __________ with increase in temperature.
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Which is the best tube arrangement (in a shell and tube heat exchanger) if the fluids are clean and non-fouling?
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