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The air standard efficiency of diesel cycle will be less than that of Otto cyclein the case of
- a)Same compression ratio and same heat input
- b)Same maximum pressure and same heat input
- c)Same maximum pressure and same output
- d)Same maximum pressure and S8.me maximum temperature
Correct answer is option 'A'. Can you explain this answer?
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The air standard efficiency of diesel cycle will be less than that of ...
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Air standard efficiency refers to the ratio of the net work output of a cycle to the heat input of the cycle. The diesel cycle and the Otto cycle are two different thermodynamic cycles used in internal combustion engines, with the diesel cycle being typically used in diesel engines and the Otto cycle being used in gasoline engines.
Comparison between Diesel Cycle and Otto Cycle:
1. Compression Ratio:
In the diesel cycle, the compression ratio is higher compared to the Otto cycle. The higher compression ratio in the diesel cycle allows for higher thermal efficiency due to the higher air standard efficiency. On the other hand, the lower compression ratio in the Otto cycle limits its thermal efficiency.
2. Heat Input:
In the case of the same compression ratio and the same heat input, the air standard efficiency of the diesel cycle will be less than that of the Otto cycle. This is because the diesel cycle operates at a higher compression ratio, which leads to a higher air standard efficiency. The higher efficiency of the diesel cycle results in a higher net work output for the same heat input.
3. Maximum Pressure:
If the maximum pressure is the same for both cycles and the heat input is the same, the air standard efficiency of the diesel cycle will still be less than that of the Otto cycle. This is because the diesel cycle operates at a higher compression ratio than the Otto cycle, resulting in a higher air standard efficiency.
4. Maximum Temperature:
If the maximum temperature is the same for both cycles and the maximum pressure is the same, the air standard efficiency of the diesel cycle will be less than that of the Otto cycle. This is because the diesel cycle operates at a higher compression ratio than the Otto cycle, which leads to a higher air standard efficiency.
Conclusion:
In summary, the air standard efficiency of the diesel cycle will be less than that of the Otto cycle in the case of the same compression ratio and the same heat input. The higher compression ratio in the diesel cycle allows for higher thermal efficiency, resulting in a higher net work output for the same heat input.
Comparison between Diesel Cycle and Otto Cycle:
1. Compression Ratio:
In the diesel cycle, the compression ratio is higher compared to the Otto cycle. The higher compression ratio in the diesel cycle allows for higher thermal efficiency due to the higher air standard efficiency. On the other hand, the lower compression ratio in the Otto cycle limits its thermal efficiency.
2. Heat Input:
In the case of the same compression ratio and the same heat input, the air standard efficiency of the diesel cycle will be less than that of the Otto cycle. This is because the diesel cycle operates at a higher compression ratio, which leads to a higher air standard efficiency. The higher efficiency of the diesel cycle results in a higher net work output for the same heat input.
3. Maximum Pressure:
If the maximum pressure is the same for both cycles and the heat input is the same, the air standard efficiency of the diesel cycle will still be less than that of the Otto cycle. This is because the diesel cycle operates at a higher compression ratio than the Otto cycle, resulting in a higher air standard efficiency.
4. Maximum Temperature:
If the maximum temperature is the same for both cycles and the maximum pressure is the same, the air standard efficiency of the diesel cycle will be less than that of the Otto cycle. This is because the diesel cycle operates at a higher compression ratio than the Otto cycle, which leads to a higher air standard efficiency.
Conclusion:
In summary, the air standard efficiency of the diesel cycle will be less than that of the Otto cycle in the case of the same compression ratio and the same heat input. The higher compression ratio in the diesel cycle allows for higher thermal efficiency, resulting in a higher net work output for the same heat input.
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The air standard efficiency of diesel cycle will be less than that of Otto cyclein the case ofa)Same compression ratio and same heat inputb)Same maximum pressure and same heat inputc)Same maximum pressure and same outputd)Same maximum pressure and S8.me maximum temperatureCorrect answer is option 'A'. Can you explain this answer?
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