If the efficiency of the boiler is 91.2 % , the overall efficiency of the turbine, which includes the carnot efficiency and its mechanical efficiency, is 46.9 % , and the efficiency of the generator is 98.4 %, what is the efficiency of the total generating unit? (another 5.0 % needs to be subtracted for other plant losses.)

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.