A counter flow heat exchanger is used to col 2000 kg/hr of oil (c p = 2.5 k J/kg K) from 105 degree Celsius to 30 degree Celsius by the use of water entering at 15 degree Celsius. If the overall heat transfer coefficient is expected to be 1.5 k W/m2 K, find out the water flow rate. Presume that the exit temperature of the water is not to exceed 80 degree Celsius

A counter flow heat exchanger is used to col 2000 kg/hr of oil (c p =

1.	A counter flow heat exchanger is used to col 2000 kg/hr of oil (c _p = 2.5 k J/kg K) from 105 degree Celsius to 30 degree Celsius by the use of water entering at 15 degree Celsius. If the overall heat transfer coefficient is expected to be 1.5 k W/m²K, find out the water flow rate. Presume that the exit temperature of the water is not to exceed 80 degree Celsius
A.	1680.2 kg/hr
B.	1580.2 kg/hr
C.	1480.2 kg/hr
D.	1380.2 kg/hr
Answer» E.