It is desired to increase the output of a spark-ignition engine by either (a) raising the compression ratio from 8 to 10 or (b) increasing the inlet pressure from 1.0 atm to 1.5 atm. Using the constant-volume cycle as a mode l for engine operation, which procedure will give: a. The highest pressure of the cycle b. The highest efficiency c. The highest map Assume k = 1.3 and m_f Q_HV/m_0 T_1 = 9.3 T_)c - 1/T_c When a diesel engine was designed for = 0.75 at full load, estimate the maximum permissible value of for the turbocharged engine at full load if the air pressure. The compression ratio is 16. The fuel heating value is 42.5 MJ/kg fuel. Assume k = 1.35, that the air is 16. The fuel heating value is 42.5 MJ/kg fuel. Assume k = 1.35, that the air temperature at the start of compression is 325 K, and (F/A) = 0.0666.