In a one-shell and two-tube heat exchanger, cold water with inlet temperature of 20°C is heated by hot water supplied at the inlet at 80°C. The cold and hot water flow rates are 5000 kg/h and 10,000 kg/h, respectively. If the shelland- tube heat exchanger has a UAs value of 11,600 W/K, determine the cold water and hot water outlet temperatures. Assume cpc = 4178 J/kg·K and cph = 4188 J/kg·K.

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In a one-shell and two-tube heat exchanger, cold
water with inlet temperature of 20°C is heated by hot water
supplied at the inlet at 80°C. The cold and hot water flow rates
are 5000 kg/h and 10,000 kg/h, respectively. If the shelland-
tube heat exchanger has a UAs value of 11,600 W/K,
determine the cold water and hot water outlet temperatures.
Assume cpc = 4178 J/kg·K and cph = 4188 J/kg·K.

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