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The thermal efficiency of the electrical power generation is defined as the electrical energy produced divided by the total energy released by the fuel consumed. The waste heat of the power cycle goes into cooling water and the exhaust gases that exit from the power plant stacks.

Learn MoreOct 15 2009 · The first part of the conversion is efficiency of the boiler and combustion. For this example we take 88 % on an HHV basis that is the normal range for a well-optimized power plant. Second part is the steam cycle efficiency. Modern Rankine cycle adopted in coal fired power plants have efficiencies that vary from 32 % to 42 %.

Learn MoreIn order to calculate the Boiler efficiency use the below formula. Direct method to calculate the Boiler efficiency but this is not accurate method; Boiler efficiency = M X ( H2 - H1) X 100 / Fuel GCV X Fuel consumption( kg/hr ) M- Steam quantity at the boiler out let. H1- Feed water enthalpy. H2- Steam enthalpy at the outlet of Boiler. 2.

Learn MoreAug 17 2020 · To express the efficiency of a generator or power plant as a percentage divide the equivalent Btu content of a kWh of electricity (3412 Btu) by the heat rate. For example if the heat rate is 10500 Btu the efficiency is 33%. If the heat rate is 7500 Btu the efficiency is 45%.

Learn MoreMay 13 2021 · Where 860 is heat value of 1 KWH power (1 KW = 860 kcal) So it is clear that to increase the power plant efficiency we need to reduce the heat rate. Thermal Power plant heat rate can be calculated from the following formula . THR (Thermal PP) = Fuel consumption X GCV / Power generation

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