. A parallel-flow heat exchanger is used to cool milk (C=3.845 J/Kg. 0 C) entering at 110 Celsius. The flow rate of milk is 1.5 kg/s. Cold water (C=4.178 KJ/ kg 0C) enters at 22 Celsius with a flow rate of 3.0 kg/s and exits at 45 0 C. The overall heat transfer coefficient is known to be 300 W/m2.0 Calculate (a). The exit temperature of milk (c). Draw the temperature profile of above heat exchanger (b). The heat transfer surface area required
Air at dry bulb temperature of 26 Celsius and a RH of 85% is heated to a dry bulb temperature at 100 Celsius
. The dryer contains 2300 kg of coconut with an initial moisture content of 67% wet basis. If the
average moisture content of the product is 15% wet basis, after drying for 7 hour, with the air flow
rate of 1739kg/hr., determine the exit air temperature and relative humidity, and heat requirement
in kW.
(B). A parallel-flow heat exchanger is used to cool milk (C=3.845 J/Kg. 0
C) entering at 110 Celsius. The
flow rate of milk is 1.5 kg/s. Cold water (C=4.178 KJ/ kg 0C) enters at 22 Celsius with a flow rate of 3.0
kg/s and exits at 45 0
C. The overall heat transfer coefficient is known to be 300 W/m2.0
Calculate
(a). The exit temperature of milk
(c). Draw the temperature profile of above heat exchanger
(b). The heat transfer surface area required
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