An ideal Diesel cycle has a compression ratio of 20 and a cutoff ratio of 1.3. At the beginning of the compression process, air in the pistoncylinder is at 90kPa and 15C. The cycle produces 250kW of power. Show the cycle on a both a T-s and a P-v diagram, and calculate a. Maximum temperature and pressure in the cycle b. Specific net heat transfer over the cycle (in kJ/kg ) c. Mass flow rate of air throughout the engine (in kg/s ) d. Total heat transfer into the cycle (in kW ) e. Thermal efficiency (ans: 1,240K,5,970kPa,196kJ/kg,1.28kg/s,367kW,68.1% )