Читать книгу Internal Combustion Engines - Allan T. Kirkpatrick - Страница 59

Compute the volumetric efficiency, net thermal efficiency, residual fraction, intake stroke temperature rise , and the exhaust stroke temperature decrease, , of an engine that operates on the ideal four‐stroke Otto cycle. The engine is throttled with an inlet pressure of 50 kPa and has an inlet temperature of 300 K. The exhaust pressure is 100 kPa. The compression ratio, 10. Assume an energy addition of 2500 kJ/ and 1.3. Plot the volumetric efficiency, net thermal efficiency, and residual fraction as a function of the intake/exhaust pressure ratio for .