You work as a maintenance engineer at Al-Hussein Thermal Power Station that produces electricity. It has a total generation capacity of 260 MW, which consists of two steam power plant units (2 x 130 MW). A. If the thermal efficiency of the first unit is 70%, and that of the second unit is 65%, determine the rate of the thermal energy required to operate the station. B. Determine the rate of waste heat rejection from the station. C. Determine the amount of waste heat energy rejected from the station if it has been operated for 12 hours. D. After certain maintenance operations, the efficiency of each unit is improved to become 80%: 1) How does this improvement affect the rate of thermal energy required to produce the same electrical power 260MW? Compare your answer with that obtained from part A 2) Calculate the rate of waste heat rejection after the improvement? Compare this value with that that obtained from part B. 3) Depending on your results in parts 1 and 2. How do you expect this improvement will effect on the performance and on the running cost of the station? Explain

You work as a maintenance engineer at Al-Hussein Thermal Power Station that produces electricity. It has a total generation capacity of 260 MW, which consists of two steam power plant units (2 x 130 MW). A. If the thermal efficiency of the first unit is 70%, and that of the second unit is 65%, determine the rate of the thermal energy required to operate the station. B. Determine the rate of waste heat rejection from the station. C. Determine the amount of waste heat energy rejected from the station if it has been operated for 12 hours. D. After certain maintenance operations, the efficiency of each unit is improved to become 80%: 1) How does this improvement affect the rate of thermal energy required to produce the same electrical power 260MW? Compare your answer with that obtained from part A 2) Calculate the rate of waste heat rejection after the improvement? Compare this value with that that obtained from part B. 3) Depending on your results in parts 1 and 2. How do you expect this improvement will effect on the performance and on the running cost of the station? Explain

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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