Hot air at 400°C and 150 kPa is to be used to produce saturated steam at 200°C in an insulated, non-mixing heat exchanger. Water enters the heat exchanger at 20°C while the air leaves at 350°C. The mass flow rate of air is 0.8 kg/s, pressure drops are negligible, and specific heats for air are evaluated at the average air temperature. What is the mass flow rate of water, in kg/s. Report your answer to four decimal places using rounding.
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.
Hot air at 400°C and 150 kPa is to be used to produce saturated steam at 200°C in an insulated, non-mixing heat exchanger. Water enters the heat exchanger at 20°C while the air leaves at 350°C. The mass flow rate of air is 0.8 kg/s, pressure drops are negligible, and specific heats for air are evaluated at the average air temperature.
What is the mass flow rate of water, in kg/s. Report your answer to four decimal places using rounding.
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