An engine represented by Fig. 1 has a coolant system with a flow rate of 25 gal/min and a thermostat that controls coolant flow temperature into the engine at 220°F. The engine produces 30 bhp at 2500...

An engine represented by Fig. 1 has a coolant system with a flow rate of 25 gal/min and a thermostat that controls coolant flow temperature into the engine at 220°F. The engine produces 30 bhp at 2500 RPM as the automobile travels at 30 MPH. Frontal area of the radiator is and a fan increases air flow velocity through the radiator by a factor of 1.1.

Calculate:

(a) Coolant temperature as it exits the engine. [°F]

(b) Air temperature leaving the radiator if the ambient temperature is 75°F. [°F]