100,000 pounds per hour of water are to pass through a heat exchanger, which is to raise the water temperature fron1140°F to 200°F. Combustion products (fuel gas) having a specific heat of 0.24 Btu/lbm F are available at 800°F. The overall heat transfer coefficient is 12 Btu/h.f2. °F. If 100,000 Ibm/h of combustion products are available, determine
(a) The exit temperature of the fuel gas.
(b) The required heat transfer area for a counter-flow exchanger.
The question belongs to Chemical Engineering and the question is about passing 100000 pounds of water per hour through a heat exchanger which needs to raise the temperature of the water. The temperature of the fuel gas and the heat required by the heat exchanger needs to be calculated.
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