A four-cylinder SI engine with a compression ratio operates on an air-standard Otto cycle at 3000 RPM using ethyl alcohol as fuel. Conditions in the cylinders at the start of the compression stroke...

A four-cylinder SI engine with a compression ratio operates on an air-standard Otto cycle at 3000 RPM using ethyl alcohol as fuel. Conditions in the cylinders at the start of the compression stroke are 60°C and 101 kPa. Combustion efficiency Write the balanced stoichiometric chemical equation for this fuel.

Calculate:

(a) AF if the engine operates at an equivalence ratio
=1.10.

(b) Peak temperature in cycle of part (a). [°C]

(c) Peak pressure in cycle of part (a). [kPa]