QUESTION NO 1 In an Otto cycle air is compressed from an initial pressure 120 kPa...

QUESTION NO 1

In an Otto cycle air is compressed from an initial pressure 120 kPa and temperature (T = 380). The cycle has compression ratio of 10. In the constant volume heat, addition process 1000 kJ/kg heat is added into the air. Considering variation on the specific heat of air with temperature, determine,

(a) the pressure and temperature at the end of heat addition process (show the points on P-v diagram)

(b) the network output

(d) the mean effective pressure for the cycle

The gas constant of air is R = 0.287 kJ/kg.K.

(Describe the necessary assumptions you have considered in your solutions.)

QUESTION NO 2

Repeat Q1 using cold air standard assumption.

(Properties: The properties of air at room temperature are cp = 1.005 kJ/kg·K, cv = 0.718 kJ/kg·K, R = 0.287 kJ/kg·K, and k = 1.4)

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Expert Solution

samet mamat answered 7 months ago

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