Question

In: Mechanical Engineering

4-) In the ideal Otto cycle, the highest temperature of the cycle is 950 ° C,...

4-) In the ideal Otto cycle, the highest temperature of the cycle is 950 ° C, the compression ratio is 9. The pressure of the air at the beginning of the compression process is 110 kPa and the temperature is 45 ° C.

Since the mass of the air in the cycle is 1 kg,

a) Draw the P-v diagram of the cycle.

b) Find the temperature and pressure values ​​at every point of the cycle.

c) Find the thermal efficiency of the cycle.

T = 273 + ° C Note: C, and C do not change at temperature (constant).

Solutions

Expert Solution

In this problem, as per specified we have to use constant specific heat to solve the problem so apply the formula as per process in the otto cycle to get the required pressure and temperature at all the points in the cycle.

and with the help of temperature finally find the thermal efficiency by comparing the heat absorbed and heat rejected.

comment if any query.

samet mamat answered 2 years ago
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