Mechanical Engineering - Thermodynamics - Discussion
Discussion Forum : Thermodynamics - Section 1 (Q.No. 22)
22.
The efficiency of Stirling cycle is __________ Carnot cycle.
Discussion:
58 comments Page 5 of 6.
Sanjeev said:
8 years ago
Stirling cycle efficiency would be equal to carnot cycle efficiency, when there is complete (ideal) regeneration of heat being rejected at costant volume process.
Yash panchal said:
7 years ago
Please clarify the answer by using equation.
Kiruba said:
7 years ago
Please clarify the answer by using equation.
Sohan said:
7 years ago
Stirling cycle less efficient than carnot cycle but if regenerative reversible stirling cycle is used then the efficiency is equal to carnot cycle efficiency.
Nagarajan said:
7 years ago
Carnot is more efficient.
Anupriya Gupta said:
7 years ago
Cornot cycle is more efficient than sterling cycle.
Arvind said:
7 years ago
But the question is asked in a general case. So the answer should be less than, right?
Dwaipayan said:
7 years ago
Only when regeration is employed. If the heat rejection during constant volume process is consumed wholly in the heat addition (also const. Vol) process, needless to mention, both being reversible, then the area under heat rejection curve and that for heat addition curve are congruous. This will give the efficiency [1-(T2/T1)]. T2 the lowest temp of the cycle and T1 the highest one.
Ashish patel said:
6 years ago
The efficiency of the Stirling cycle is as same as the Carnot cycle efficiency.
Practically it is not that easy to build a Heat Exchanger to operate continuously at that much high temperatures. This is the major difficulty in the Stirling Engines. So these became obsolete after the introduction of an Otto cycle and the diesel Cycles.
Practically it is not that easy to build a Heat Exchanger to operate continuously at that much high temperatures. This is the major difficulty in the Stirling Engines. So these became obsolete after the introduction of an Otto cycle and the diesel Cycles.
Shivangi said:
6 years ago
Due to heat transfer at constant volume processes, the efficiency of the Stirling cycle is less than that of the Carnot cycle. But the regenerative Stirling cycle has the same efficiency as the Carnot cycle.
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