A gas engine-based trigeneration plant delivers heat and power at the fol- lowing rates: • 90 kJ/s of heat for water heating and 110 kW of electricity over 12 h (7,) a day • 110 kW of electricity and 100 kJ/s of heat for absorption cooling over 12 h (T,) a day Plant overall efficiency in heating and power generation mode is EUF, = 87%, which in cooling and power generation mode is EUF, = 75%. The fuel in the gas engine is natural gas with an LHV of 49 MJ/kg. Calculate (i) the total useful energy production by the trigeneration plant in a day, (ii) the trigeneration plant average EUF value, and (iii) the monthly fuel energy and fuel requirements of the trigeneration plant.

A gas engine-based trigeneration plant delivers heat and power at the fol- lowing rates: • 90 kJ/s of heat for water heating and 110 kW of electricity over 12 h (7,) a day • 110 kW of electricity and 100 kJ/s of heat for absorption cooling over 12 h (T,) a day Plant overall efficiency in heating and power generation mode is EUF, = 87%, which in cooling and power generation mode is EUF, = 75%. The fuel in the gas engine is natural gas with an LHV of 49 MJ/kg. Calculate (i) the total useful energy production by the trigeneration plant in a day, (ii) the trigeneration plant average EUF value, and (iii) the monthly fuel energy and fuel requirements of the trigeneration plant.

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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