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A stream of 70kg/hr superheated steam is used to heat 15kmol/hr nitrogen gas via a heat exchanger. The superheated steam at 3500C and 1 bar enters the heat exchanger and exits as saturated water liquid at the same pressure.The nitrogen gas is heated from 25oC to 300oC at constant pressure of 1atm.The heat exchanger is set up for countercurrent flow.
i)Draw and label the flowchart of the heat exchanger process by indicating all the input and output process variables.
ii)Determine the heat loss from the heat exchanger.
iii)If the saturated water liquid flows in a pipe with inner diameter of 2cm,estimate the rate of kinetic energy of the saturated water liquid.
iv)Propose one method to reduce heat loss.