In an oil engine working on dual combustion cycle the temperature and pressure at the beginning of compression ratio is 13. The heat supplied per kg of air is 1675 kJ half of which is supplied at constant volume and half at constant pressure. Calculate (i) the maximum pressure in the cycle and (ii) the percentage of stroke at which cut off occurs. Take g for compression 1.4,
R = 0.287 kJ/kgK and C for products of combustion is 071 + 20 ´ 10-5 T where T is in K.