Question

1. In an oil engine. working on dual combustion cycle, the temperature
and pressure at the beginning of compression are 90°C and 1 bar. The
compression ratio is 13:1. The heat supplied per kg of air is 1674 kJ. half of
which is supplied at constant volume and a half at constant pressure.
Calculate ) the maximum pressure in the cycle GD the percentage of
stroke at which cut-off occurs. Take Y for compression 1.4, R= 0.293 kJ/kg K
and Cu for products of combustion as (0.71:12x10-5T).
Your answer​

Answer 1

Answer:1. In an oil engine. working on dual combustion cycle, the temperature

and pressure at the beginning of compression are 90°C and 1 bar. The

compression ratio is 13:1. The heat supplied per kg of air is 1674 kJ. half of

which is supplied at constant volume and a half at constant pressure.

Calculate ) the maximum pressure in the cycle GD the percentage of

stroke at which cut-off occurs. Take Y for compression 1.4, R= 0.293 kJ/kg K

and Cu for products of combustion as (0.71:12x10-5T).

Your answer​

Explanation: