Afour-cylinder, four-stroke internal combustion engine has a bore of 3.7 in and a stroke of 3.4 in. the clearance volume is 16% of the cylinder volume at bottom dead center and the crankshaft rotates at 2400 rpm. the processes within each cylinder are modeled as an air-standard otto cycle with a pressure of 14.5 lbf/in.2 and a temperature of 60f at the beginning of compression. the maximum temperature in the cycle is 5200r. based on this model, calculate the net work per cycle, in btu, and the power developed by the engine, in horsepower.

Liquid flows at steady state at a rate of 2 lb/'s through a pump, which operates to raise the elevation of the liquid 100 ft from control volume inlet to exit. the liquid specific enthalpy at the inlet is 40.09 btu/lb and at the exit is 40.94 btub. the pump requires 3 btu/s of power to operate. if kinetic energy effects are negligible and gravitational acceleration is 32.174 tt/s, the heat transfer rate associated with this steady state process is most closely 1)-2,02 btu/s from the liquid to the surroundings 2)-3.98 btu/s from the surroundings to the liquid. 3)-4.96 btu/s from the surroundings to the liquid. 4)-1.04 btu/s from the liquid to the surroundings.