The adiabatic flame temperature (theoretical maximum temperature) of black coal in air is over 2000°C. If the ambient temperature is 20°c then the theoretical maximum efficiency of a coal fired power station is approximately 8796. Why then is the efficiency of even the best coal fired power stations less than 50%.

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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The adiabatic flame temperature (theoretical maximum temperature) of black coal in air is over 2000°C. If the ambient temperature is 20°C then the theoretical maximum efficiency of a coal fired power station is approximately 87%.
Why then is the efficiency of even the best coal fired power stations less than 50%.
Transcribed Image Text:The adiabatic flame temperature (theoretical maximum temperature) of black coal in air is over 2000°C. If the ambient temperature is 20°C then the theoretical maximum efficiency of a coal fired power station is approximately 87%. Why then is the efficiency of even the best coal fired power stations less than 50%.
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