A compression ignition engine for a small truck is to operate on an air-standard Dual cycle with a compression ratio of Due to structural limitations, maximum allowable pressure in the cycle will be...

A compression ignition engine for a small truck is to operate on an air-standard Dual cycle with a compression ratio of Due to structural limitations, maximum allowable pressure in the cycle will be 9000 kPa. Light diesel fuel is used at a fuel–air ratio of FA=0.054. Combustion efficiency can be considered 100%. Cylinder conditions at the start of compression are 50°C and 98 kPa.

Calculate:

(a) Maximum indicated thermal efficiency possible with these conditions. [%]

(b) Peak cycle temperature under conditions of part (a). [⁰C]

(a). [°C] (c) Minimum indicated thermal efficiency possible with these conditions. [%]

(d) Peak cycle temperature under conditions of part (c). [°C]