Читать книгу Internal Combustion Engines - Allan T. Kirkpatrick - Страница 22

A four‐stroke 2.5 L () direct injection automobile engine is tested on a dynamometer at a speed of 2500 rpm. It produces a torque of 150 Nm, and its volumetric efficiency is measured to be 0.85. What is the brake power , and the mass air flowrate through the engine? The intake manifold air pressure and temperature are 75 kPa and 313 K.