The mass flow rate, specific heat, and inlet temperature of the tube-side stream in a double-pipe, parallel-flow heat exchanger are 2700 kg/h, 2.0 kJ/kg·K, and 120°C, respectively. The mass flow rate, specific heat, and inlet temperature of the other stream are 1800 kg/h, 4.2 kJ/kg·K, and 20°C, respectively. The heat transfer area and overall heat transfer coefficient are 0.50 m2 and 2.0 kW/m2·K, respectively. Find the outlet temperatures of both streams in steady operation using (a) the LMTD method and (b) the effectiveness–NTU method.
Heat Exchangers
Heat exchangers are the types of equipment that are primarily employed to transfer the thermal energy from one fluid to another, provided that one of the fluids should be at a higher thermal energy content than the other fluid.
Heat Exchanger
The heat exchanger is a combination of two words ''Heat'' and ''Exchanger''. It is a mechanical device that is used to exchange heat energy between two fluids.
The mass flow rate, specific heat, and inlet temperature
of the tube-side stream in a double-pipe, parallel-flow heat exchanger are 2700 kg/h, 2.0 kJ/kg·K, and 120°C, respectively.
The mass flow rate, specific heat, and inlet temperature
of the other stream are 1800 kg/h, 4.2 kJ/kg·K, and 20°C,
respectively. The heat transfer area and overall heat transfer
coefficient are 0.50 m2 and 2.0 kW/m2·K, respectively. Find
the outlet temperatures of both streams in steady operation
using (a) the LMTD method and (b) the effectiveness–NTU
method.
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