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..1 Verizon LTE 12:03 AM @16%, loncapa2.physics.sc.edu sudentsecin ou 2017 Fall, PHYS 201 (datta) Main Menu | Course Contents ++com came es . «m Notes "Bookmark . Evaluate-Communicate Print nlnfo Efficiency Power Plant (c13p30) A steam-electric power plant delivers 900 MW of electric power. The surplus heat is exhausted into a river with a flow of 5.33x105 kg/s, causing a change in temperature of 0.96 °C what is the efficiency of the power plant (in 96 Don't enter a unit.)? What is the rate of the thermal source? Post Discussion Send FeedbackExplanation / Answer
Qout = m C deltaT
= (5.33 x 10^5) (4184)(0.96)
= 2140.9 x 10^6 J/s
= 2140.9 MW
Qin = Qout + W = 3040.9
n = 900 / 3040.9 = 0.296 ..........Ans
Thermal source rate = 3040.9 MW .......Ans
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