Mechanical Engineering - Thermodynamics - Discussion

Discussion Forum : Thermodynamics - Section 3 (Q.No. 1)
1.
For the same compression ratio, the efficiency of dual combustion cycle is
greater than Diesel cycle and less than Otto cycle
less than Diesel cycle and greater than Otto cycle
greater than Diesel cycle
less than Diesel cycle
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
16 comments Page 1 of 2.

Suhas said:   8 years ago
For same compression ratio, In case of diesel cycle heat rejection will be more compared to Otto cycle. (area under T-S dia, slope for constant volume is more than that of constant pressure) And since heat is rejected under conatant volume and added under constant pressure in case of diesel cycle, thermal efficiency of diesel cycle is less than that of Otto.

Santhosh kumar L said:   1 decade ago
For the same compression ratio the efficiency of diesel cycle is more than Otto Cycle. And the dual combustion cycle is in between the Otto and diesel cycle. And I think option B is correct.

Shekhar Ghotekar said:   9 years ago
For the same compression ratio, the area under PV diagram is maximum for otto cycle. So the efficiency is the maximum for otto cycle followed by dual and diesel cycle.

Ravi verma said:   1 decade ago
Yes I m agree with your answer.

Efficiency of diesel cycle is more than otto cycle. And the dual combustion cycle is in between of them.

B option is right I think.

Mr. K.M. Jadhav said:   1 decade ago
For Same compression ration:.

Efficiency of Otto cycle is greater than that of Diesel cycle and efficiency of Dual cycle is in-between Otto and Diesel cycles.

Jayanta Sinha said:   7 years ago
The efficiency of the Otto cycle is greater than the efficiency of the Diesel cycle for a given compression ratio and heat rejection.

Patel Dhaval said:   9 years ago
For the same compression ratio=> n)otto > n)dual> n)diesel cycle {where n represent efficiency}.

So, option A is correct.

Venkat said:   9 years ago
For same compression ratio.

Otto cycle > duel dycle > diesel cycle.

Nuthan said:   1 year ago
For maximum temperature and pressure Diesel>dual>otto.

Sheik said:   9 years ago
Carnot cycle is more efficient than other cycle.


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