Chemical Engineering :: Heat Transfer
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Unsteady state heat conduction occurs, when
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Mode of heat transfer in which the fluid moves under the influence of changes in fluid pressure produced by external work is called
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Baffle spacing
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Boiling point elevation of a solution of NaOH
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The advantage of backward feed multiple effect evaporators over forward feed units is that
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Which of the following is the most controlling factor for the rate of bubble detachment from the hot solid surface ?
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Which characteristic of a fluid is not important in deciding its route in a shell and tube heat exchanger ?
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Thermal conductivities of most of the liquids __________ with rise in temperature.
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A metal ball of radius 0.1 m at a uniform temperature of 90°C is left in air at 30°C. The density and the specific heat of the metal are 3000 kg/m3 and 0.4 kJ/kg.K respectively. The heat transfer co-efficient is 50 W/m2.K Neglecting the temperature gradients inside the ball, the time taken (in hours) for the ball to cool to 60°C is
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The purpose of floating head in a heat exchanger is to
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