A high-speed oil engine operating on a dual combustion cycle has a pressure of 1 bar and a temperature of 50°C before compression. Air is then compressed isentropically to1/1 5 th of its original...

A high-speed oil engine operating on a dual combustion cycle has a pressure of 1 bar and a temperature of 50°C before compression. Air is then compressed isentropically to1/1 5
^th
of its original volume. The maximum pressure is twice the pressure at the end of isentropic compression. If the cut-off ratio is 2, determine the temperature at the end of each process and ideal efficiency of the cycle. Take