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soofking

Poster warned about not using the homework template

## Homework Statement

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A four-stroke petrol engine with a compression ratio of 9 has a total swept volume of 2.71 litres distributed over 4 cylinders.

Assume the corresponding ideal thermodynamic cycle and the following conditions to calculate the maximum amount of fuel which can be safely added to the air in one cylinder.

- CV of air: 0.718 kJ/ (kg K)
- Cp of air: 1.005 kJ/ (kg K)
- pressure at intake: 0.91 bar
- Temperature at intake: 279 K
- Maximum temperature in cylinder: 1,365 K
- Calorific value of fuel: 48 MJ/kg

## Homework Equations

V2=V1/(P1/P2)^(1/γ).

possible other equations such as ideal gas equation etc

## The Attempt at a Solution

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So far I have only managed to work out the output power from V2=V1/(P1/P2)^(1/γ). which comes out as 8.19 bar.

any help would be greatly appreciated.

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