) Steam enters the condenser of a steam power plant at 75 kPa and a quality of 75 percent with a mass flow rate of 180000 kg/hr. It is to be cooled be water from a nearby river by circulating the water through the tubes within the condenser. To prevent thermal pollution, the river water not allowed to experience a temperature rise above 8 oC. If the steam is to leave the condenser as saturated mixture at 101.325 kPa with a quality of 10 percent, determine the mass flow rate of the cooling water required in kg/s. (cp of water, not steam, is 4.18 kJ/(kg*K))

Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?

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.

Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.