EXAMIANS
The ratio of velocity head to tube side return loss in case of a multipass shell and tube heat exchanger is
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Rate of heat transfer by vaporisation from pools of water is affected by the
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In case of a multipass shell and tube heat exchanger, providing a baffle on the shell side __________ the heat transfer rate.
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Which of the following accessories is provided in the vapor line of an evaporator for removing the entrained liquid ?
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Heat flux, as defined in heat flow is analogous to __________ in electricity flow.
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Value of Nusselt number [Nu = (hD/k)] for the heat transfer by conduction from a droplet or a spherical particle to a surrounding stagnant film is
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The radiation heat flux from a heating element at a temperature of 800°C, in a furnace maintained at 300°C is 8 kW/m². The flux, when the element temperature is increased to 1000°C for the same furnace temperature is
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For a given ambient air temperature with increase in the thickness of insulation of a hot cylinderical pipe, the rate of heat loss from the surface would
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For small temperature difference, the heat transfer rate as per Newton's law of cooling is proportional to (where, Δt = excess temperature)
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The Sieder-Tate correlation for heat transfer in turbulent flow in pipe gives Nu α Re0.8, where, Nu is the Nusselt number and Re is the Reynolds number for the flow. Assuming that this relation is valid, the heat transfer co-efficient varies with the pipe diameter (D) as
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