A refrigerator is designed to cool 250 kg/hr of hot liquid of specific
heat 3350 J/kg.k at 120°C. 1000 kg/hr of cooling water is available
for cooling purposes at a temperature of 10°C. The overall heat
transfer coefficient is 1160 W/m2K and the surface area of the heat
exchanger is 0.25 m2. Determine the exit temperatures of hot liquid
and cooling waterand also the effecUveness of a H.E