A power plant produces 7000 kW of net power. Instead of furnace, hot water with mass flow rate of200 kg/s is used as the heat source. The water enters the plant as saturated liquid-vapor mixture at90°C with quality 0.1 and leaves the plant at 90°C as saturated liquid. If the environmenttemperature (heat sink) is 25°C, determine (a) the actual thermal efficiencies (b) the rate of heatrejected from this power plant and (c) maximum possible thermal efficiencies.

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Answered: A power plant produces 7000 kW of net…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A freezer maintains a temperature of-30°C. The ambient air temperature is 20°C. If heat leaks into the freezer at the continuous rate of 3.15 kJ/s what should be the least power necessary to pump this heat out continuously?
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2
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