A concentric counterflow heat exchanger is used to cool oil by water. The oil flow rate is 0.1 kg/s and enters at 100 C. Water enters at 30 C and a flow rate of0.2 kg/s. The heat transfer area is 5.223 m2 and the overall heat transfer coefficient is 37.8 W/m2·K. Find the rate of heat transfer and exit temperatures. Data: Cp,h = 2131 J/kg·K and Cp,c = 4178 J/kg·K. [Ans.: Q = 8524 W, Tho = 60 C, and Tco = 40 C].
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.
2. A concentric counterflow heat exchanger is used to cool oil by water. The oil flow rate is 0.1 kg/s and enters at 100 C. Water enters at 30 C and a flow rate of0.2 kg/s. The heat transfer area is 5.223 m2 and the overall heat transfer coefficient is 37.8 W/m2·K. Find the rate of heat transfer and exit temperatures. Data: Cp,h = 2131 J/kg·K and Cp,c = 4178 J/kg·K. [Ans.: Q = 8524 W, Tho = 60 C, and Tco = 40 C].
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