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Q1/A power plant operating on Carnot cycle that produces (500MW). It turned out that this represents (n-28%) of the energy supplied to the plant by burning coal in the boiler, and the used coal releases an energy of (29.5MJ/kg). Calculate the mass of coal the plant burns in one hour.

Q1/A power plant operating on Carnot cycle that produces (500MW). It turned out that this represents (n-28%) of the energy supplied to the plant by burning coal in the boiler, and the used coal releases an energy of (29.5MJ/kg). Calculate the mass of coal the plant burns in one hour.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Q1/ A power plant operating on Camot cycle that produces (500MW). I turned out that this represents (n-28%) of the energy supplied to the plant by buming coal in the boiler, and the used coal releases an energy of (29.5MJ/ kg). Calculate the mass of coal the plant burns in one hour. Q2 / Heat is transferred from a tank of water in a refrigerator at( OC) degrees to a tank of boiling water at (100 C ) degrees. With a reversible machine (heat pump). Calculate the Heat drawn from the refrigerator. if it was The heat transfered to the tank of boiling water is 2254kJ. Q3/ Consider Steam is cooled from 550 to 111.4 °C. Assume that during this process the pressure dropped from 300 to 150 kPa. Calculate the change in entropy per kilogram.
Transcribed Image Text:Q1/ A power plant operating on Camot cycle that produces (500MW). I turned out that this represents (n-28%) of the energy supplied to the plant by buming coal in the boiler, and the used coal releases an energy of (29.5MJ/ kg). Calculate the mass of coal the plant burns in one hour. Q2 / Heat is transferred from a tank of water in a refrigerator at( OC) degrees to a tank of boiling water at (100 C ) degrees. With a reversible machine (heat pump). Calculate the Heat drawn from the refrigerator. if it was The heat transfered to the tank of boiling water is 2254kJ. Q3/ Consider Steam is cooled from 550 to 111.4 °C. Assume that during this process the pressure dropped from 300 to 150 kPa. Calculate the change in entropy per kilogram.
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