Chemical Engineering :: Heat Transfer
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Nusselt number is the ratio of the temperature gradient at the wall to
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Thermal conductivity of a gas at low density, __________ with increase in temperature.
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Nusselt number is a function of Prandtl number and __________ number of fluid in natural convection heat transfer.
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__________ heat exchanger is used for chilling oil to be dewaxed.
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It is not recommended to use a 1-2 shell and tube heat exchanger for a particular heat duty, whenever the LMTD correction factor is
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Pick out the wrong statement.
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In sub-cooled boiling,
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With increase in temperature, the thermal conductivity of a gas
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A.
Economy of a multiple effect evaporator is not influenced by the boiling point elevation.
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B.
Two identical cubes of iron and copper will have the same heat content under the same conditions of temperature.
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C.
Double pipe heat exchangers are mostly used in the field of refrigeration.
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D.
Finned tube heat exchangers are suitable for heating air by steam.
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