In: Mechanical Engineering
A renowned automotive company has 1798 cc inline-4 engines working on Atkinson cycle (by late closing of intake valves during compression stroke). It has minimum compression ratio of 6.5:1 and expansion ratio of 13.5:1. If at part load conditions the pressure at the begining of compression stroke is 80 kPa and the temperature at the start of compression stroke is 60C. (Use gasoline with QHV value = 43000 kJ/kg, AF=19, Combustion Efficiency = 97% and EGR=20%). Do complete thermodynamic analysis