Answer by E'raan Lue for Heat engine efficiency limit
Carnot efficiency does not care about fuel but the adiabatic flame temperature is the theoretical maximum of $T_H$. Adiabatic temperature is not a measured property, but a calculated one. Thus it is...
View ArticleAnswer by randyj for Heat engine efficiency limit
Sorry everyone, I am new to this site and to the app. I would like to rate some of the excellent responses but I am concerned I may do harm. I'll wait till I'm back in the office and on my pc :)
View ArticleAnswer by Cort Ammon for Heat engine efficiency limit
In a Carnot engine, $T_H$ is the temperature of the hot reservoir and $T_C$ is the temperature of the cold reservoir. In a Carnot engine, you can transfer energy out of the hot reservoir into an...
View ArticleAnswer by Floris for Heat engine efficiency limit
In a Carnot cycle, a gas does work while its temperature lowers. If this is done irreversibly you get the maximum theoretical efficiency (constant entropy).Real engines try to approach this but fail....
View ArticleAnswer by user108787 for Heat engine efficiency limit
I am interested in what theoretical efficiency limits I can achieve with particular fuels and compression ratios.As user115350 has stated, the efficiency of a diesel engine is $$\eta =...
View ArticleAnswer by user115350 for Heat engine efficiency limit
You can read wikipedia about diesel cycle. The cycle is not Carnot cycle, you can not use $\eta = 1- \frac{T_C}{T_H} $, which is only applied to Carnot cycle. For diesel cycle, the theoretical...
View ArticleHeat engine efficiency limit
The Carnot efficiency limit shows the maximum efficiency of a heat engine as:\begin{align}\eta & = 1-\frac{T_C}{T_H}\end{align}I have often heard comments that $ T_H $ is the temperature limit of...
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