A cycle operates on air occurs as follows: an isentropic compression 1-2, a constant -pressure expansion 2-3, an isentropic expansion 3-4, and finally a constant volume cooling 4-1. The ratio of...

A cycle operates on air occurs as follows: an isentropic compression 1-2, a constant -pressure expansion 2-3, an isentropic expansion 3-4, and finally a constant volume cooling 4-1. The ratio of compression during isentropic compression is 14, ratio of expansion during constant-pressure expansion is 2, P₁ = 47 kPa, T₁ = 32^oC, V₁ = 0.2 m³. Find the heat added.