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The condenser of a steam power plantcontains N = 1000 brass tubes (k= 110 W/m * K), each of inner andouter diameters, Di= 25mm and Do = 28 mm,respectively. Steamcondensation on the outer surfaces of the tubes is characterized bya convection coefficient of ho = 10,000 W/m^2 * K.a) If cooling water from a large lake is pumped through thecondenser tubes at m = 400 kg/s, what is the overall heattransfer..........................b) If, after extended operation, fouling provieds aresistance...........c) If water is extracted from the lake at 15 degrees celciusand 10 kg/sof steam at .0622 bars are to becondensed......................
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