(Solved): The figure below shows the schematic diagram of a turbocharged engine including the inlet and exit ...

The figure below shows the schematic diagram of a turbocharged engine including the inlet and exit conditions of air at the compressor, intercooler and turbine. Exhaust gas from the engine is used to run the turbine which powers the compressor to compress the incoming air. Hot air exiting the compressor may cause significant knocking to the engine. To keep the temperature low, in a typical turbocharged engine, an intercooler is used to reduce the temperature of the air exiting from the compressor. To avoid the knocking, the intercooler is designed to keep the air temperature to below 80°C before it enters the engine cylinder. Determine, a) Air temperature at the compressor exit (1.5) b) Required mass flow and volume flow rate of cooling air at the intercooler (1.5) Turbine exit, air at 325°C Turbine Compressor air inlet at compressor 95 kPa 55°C 0.017 kg/s 0.019 kg/s 110 kPa 375°C 25°C cooling air compressor exit air at 125 kPa Intercooler Cross flow air exit from intercooler at 42°C Figure: Turbocharged Engine with Intercooler