Reheat section Low-pressure turbine 3 High- pressure turbine Steam generator Condenser Pump 5 The reheat boiler above is producing 100,000 lbm/hr of superheated steam at 800 psia/1,000 F. The feedwater enters the boiler at 800 psia/400 F. Reheat steam in an amount of 70,000 Ibm/hr returns to the boiler at 400 psia/550 F and is reheated to 400 psia/900 F. Natural gas is used as the heat source in the boiler. One cubic foot of natural gas releases 1,000 Btu when combusted. If the natural gas usage by the boiler is 158.96 MCF/hour, what is the boiler efficiency? One MCF = 1,000 cubic feet on natural gas.

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Numerical Calculations

In the mid-20th century, the availability and the growth in power of digital computers led to the increase in the mathematical model in the field of engineering and science. The analysis of these detailed models needs to be increased.