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Oil enters a counterflow heat exchanger at 600 K with a mass flow rate of 10 kg/s and exits at 200 K. A separate stream of liquid water enters at 20°C, 5 bar. Each stream experiences no significant change
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Oil enters a counterflow heat exchanger at 600 K with a mass flow rate of 10 kg/s and exits at 200 K. A separate stream of liquid water enters at 20°C, 5 bar. Each stream experiences no significant change in pressure. Stray heat transfer with the surroundings of the heat exchanger and kinetic and potential energy effects can be ignored. The specific heat of the oil is constant, c = 2 kJ/kg · K. If the designer wants to ensure no water vapor is present in the exiting water stream, what is the minimum mass flow rate for the water, in kg/s?

User Orel
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5 votes

Answer:

The minimum mass flow rate for the water is 14.39kg/s

Step-by-step explanation:

In this question, we are asked to calculate the minimum mass flow rate for the water in kg/s.

Please check attachment for complete solution and step by step explanation

Oil enters a counterflow heat exchanger at 600 K with a mass flow rate of 10 kg/s-example-1
Oil enters a counterflow heat exchanger at 600 K with a mass flow rate of 10 kg/s-example-2
User Ricardo Villamil
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