The electric output of a power plant is 669 mw. cooling water is the main way heat from the powerplant is rejected, and it flows at a rate of 1.17x 108 l/hr. the water enters the plant at 23.6°c and exits at 29.8°c. (a) what is the power plant's total thermal power? (b) what is the efficiency of the power plant? (a) mwt (megawatt thermal) o answer part (a) (b) answer part (b)

As part of an industrial process, air as an ideal gas at 10 bar, 400k expands at steady state through a valve to a pressure of 4 bar. the mass flow rate of air is 0.5 kg/s. the air then passes through a heat exchanger where it is cooled to a temperature of 295k with negligible change in pressure. the valve can be modeled as a throttling process, and kinetic and potential energy effects can be neglected. (a) for a control volume enclosing the valve and heat exchanger and enough of the local surroundings that the heat transfer occurs at the ambient temperature of 295 k, determine the rate of entropy production, in kw/k. (b) if the expansion valve were replaced by an adiabatic turbine operating isentropically, what would be the entropy production? compare the results of parts (a) and (b) and discuss.

Why should seat belts not be mandatory quick plz

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.