Chapter-5 2 nd Law
Chapter-5 2 nd Law
Chapter-5 2 nd Law
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For any heat engine:<br />
<br />
th<br />
Q<br />
1<br />
Q<br />
L<br />
H<br />
For a carnot engine(i.e. any reversible heat engine):<br />
<br />
th,<br />
rev<br />
1<br />
T<br />
T<br />
L<br />
H<br />
Carnot efficiency: This is the highest efficiency a heat engine operating<br />
between the two reservoirs at TL a<strong>nd</strong> TH can have.<br />
For a steam power plant operating between TH=750K a<strong>nd</strong> TL=300K the<br />
maximum efficiency is 60%.(In practicing they are u<strong>nd</strong>er 40%)
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