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For a given compression ratio the work output of Otto cycle is
- a)increases with increase in compression ratio
- b)decreases with increase in compression ratio
- c)is not affected by compression ratio
- d)none of the above
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
For a given compression ratio the work output of Otto cycle isa)increa...
As compression ratio increases, the thermal efficiency of cycle increases and for the same heat input workout put increases.
Most Upvoted Answer
For a given compression ratio the work output of Otto cycle isa)increa...
Explanation:
- The Otto cycle is a theoretical cycle that describes the operation of a four-stroke spark ignition engine.
- It consists of four processes: intake, compression, power, and exhaust.
- The compression ratio is the ratio of the volume of the combustion chamber when the piston is at the bottom of its stroke to the volume of the combustion chamber when the piston is at the top of its stroke.
- It is an important parameter that affects the performance of the engine, including its power output, fuel efficiency, and emissions.
- The work output of the Otto cycle is the net work done by the engine per cycle, which is the difference between the work done by the expanding gases during the power stroke and the work done by the compressing gases during the compression stroke.
- The work output is a measure of the engine's power output, which is the rate at which it can do work.
- The work output depends on several factors, including the compression ratio, the heat input, and the heat rejection.
- The compression ratio affects the work output in the following ways:
- Increase in compression ratio leads to an increase in the temperature and pressure of the compressed air-fuel mixture, which results in a more powerful combustion process during the power stroke.
- This leads to an increase in the work done by the expanding gases and hence an increase in the net work output.
- The increase in work output is proportional to the increase in compression ratio, up to a certain limit beyond which the increase in compression ratio may lead to knocking or detonation, which can damage the engine.
- Therefore, the correct option is A, which states that the work output of the Otto cycle increases with an increase in the compression ratio.
- The Otto cycle is a theoretical cycle that describes the operation of a four-stroke spark ignition engine.
- It consists of four processes: intake, compression, power, and exhaust.
- The compression ratio is the ratio of the volume of the combustion chamber when the piston is at the bottom of its stroke to the volume of the combustion chamber when the piston is at the top of its stroke.
- It is an important parameter that affects the performance of the engine, including its power output, fuel efficiency, and emissions.
- The work output of the Otto cycle is the net work done by the engine per cycle, which is the difference between the work done by the expanding gases during the power stroke and the work done by the compressing gases during the compression stroke.
- The work output is a measure of the engine's power output, which is the rate at which it can do work.
- The work output depends on several factors, including the compression ratio, the heat input, and the heat rejection.
- The compression ratio affects the work output in the following ways:
- Increase in compression ratio leads to an increase in the temperature and pressure of the compressed air-fuel mixture, which results in a more powerful combustion process during the power stroke.
- This leads to an increase in the work done by the expanding gases and hence an increase in the net work output.
- The increase in work output is proportional to the increase in compression ratio, up to a certain limit beyond which the increase in compression ratio may lead to knocking or detonation, which can damage the engine.
- Therefore, the correct option is A, which states that the work output of the Otto cycle increases with an increase in the compression ratio.
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For a given compression ratio the work output of Otto cycle isa)increa...
Work output = 1 - 1/r....r- comp.ratio....so it becomes directly proportional.
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For a given compression ratio the work output of Otto cycle isa)increases with increase in compression ratiob)decreases with increase in compression ratioc)is not affected by compression ratiod)none of the aboveCorrect answer is option 'A'. Can you explain this answer?
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