Friday, 15 August 2014

Heat Exchangers Problems

Heat exchangers


Heat exchangers are devices where two moving fluid streams exchange heat without mixing.

Heat is transferred from the hot fluid to the cold one.

Under steady operation, the mass flow rate of each fluid stream flowing through a heat exchanger remains constant.

w = 0, Dke = 0, Dpe = 0

Heat exchangers are intended for heat transfer between two fluids within the device.

Usually, the entire heat exchanger is selected as the control volume and Q becomes zero.

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