6-18 A steam power plant receives heat from a furnace at a rate of 280 GJ/h. Heat losses to the surrounding air from the steam as it passes through the pipes and other components are estimated to be about 8 GJ/h. If the waste heat is transferred to the cooling water at a rate of 145 GJ/h, determine a) net power output and b) the thermal efficiency of this power plant. Answers: a) 35.3 MW, b) 45.4 percent | |
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