Question
Download Solution PDFThe heat rejection in Stirling cycle takes place at:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Stirling cycle and Ericsson cycle are the modified forms of the Carnot cycle.
A Stirling cycle consists of two reversible isothermal and two reversible constant volume (isochoric) processes.
\({\eta _{Stirling}} = \frac{{{T_3} - {T_1}}}{{{T_3}}}\)
Which is the same, as Carnot efficiency.
Whereas an Ericsson cycle consists of two reversible isothermal and two reversible constant pressure (isobaric) process.
\(\eta _{ericsson}=1-\frac{T_1}{T_3}\)
which is same as Carnot efficiency
Stirling and Ericsson Cycles:
- The ideal Otto and Diesel cycles are internally reversible, but not totally reversible.
- Hence their efficiencies will always be less than that of Carnot efficiency.
- For a cycle to approach a Carnot cycle, heat addition and heat rejection must take place isothermally.
- Stirling and Ericsson cycles comprise of isothermal heat addition and heat rejection.
- Both these cycles also have a regeneration process.
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