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A turbocharged, three-cylinder, four-stroke cycle, 1.5-liter, multipoint port-injected SI engine using stoichiometric gasoline operates at 2400 RPM with a volumetric efficiency of 88%. The

 

A turbocharged, three-cylinder, four-stroke cycle, 1.5-liter, multipoint port-injected SI engine using stoichiometric gasoline operates at 2400 RPM with a volumetric efficiency of 88%. The turbocharger has a turbine isentropic efficiency of 80% and a compressor isentropic efficiency of 78%. Exhaust flow enters the turbine at 770 K and 119 kPa, and exits at 98 kPa. Air enters the compressor at 27C and 96 kPa, and exits 120 kPa. Calculate: (a) Mass flow rate through the tubocharger compressor. [kg/see] (b) Mass flow rate through the turbocharger turbine. [kg/see] (c) Inlet air temperature (d) Exhaust temperature L at turbocharger exit. [OC] at turbocharger exit. [OC]

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