Chemical Engineering :: Heat Transfer
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In a shell and tube heat exchanger, square pitch compared to triangular pitch
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A wall has two layers of materials A and B; each made of a different material. Both the layers have the same thickness. The thermal conductivity of materialA is twice that of B. Under the equilibrium, the temperature difference across the wall is 36°C. The temperature difference across the layer A is __________ °C.
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The film co-efficient between condensing vapour and metal wall increases with
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Critical value of the __________ number governs the transition from laminar to turbulent flow in free convection heat transfer.
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The thermal boundary layer at NPr > 1
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In the free convection regime of pool boiling, the heat flux is proportional to
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With increase in temperature, the thermal conductivity of fresh lubricating oil
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Fresh orange juice contains 12% (by weight) solids and the rest water 90% of the fresh juice is sent to an evaporator to remove water and subsequently mixed with the remaining 10% of fresh juice. The resultant product contains 40% solids. The kg of water removed from 1 kg fresh juice is
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