An open feedwater heater is a direct-contact heat exchanger used in vapor power plants. Shown in the figure below are feedwater heater with H20 operating data for an open 31 °C as the working fluid operating at steady state, where T1 P2=3 bar = 0.92 +2 P3 3 bar Saturated liquid m380 kg/s T, PT=3 bar Open feedwater 3 heater Ignoring stray heat transfer from the outside of the heat exchanger to its surroundings and kinetic and potential energy effects, determine the rate of entropy production, in kW/K.

Water is the working fluid in a vapor power plant. Steam enters the turbine at 4 MPa, 540 °C, and exits the turbine as a two-phase, liquid vapor mixture at 27 °C. The condensate exits the condenser at 25 °C. The turbine efficiency is 90% and the pump efficiency is 80%. The power developed is 1 MW. ▾ ▼ Part A Determine the steam quality at the turbine exit. Express your answer to four significant figures. x = Submit Part B m = Determine the mass flow rate. Express your answer to two decimal places. Submit VAZ Ivec h A Part C Request Answer | ΑΣΦ | | vec S Request Answer Determine the thermal efficiency, Express your answer to four significant figures. 1971 ΑΣΦ | | | vec ← O C pw! 229 ? ? ? kg/s

A heat pump cycle using water as the working fluid consists of a compressor, a condenser, an expansion valve, and an evaporator. Saturated vapor with mass flow rate of 1 kg/s at 0.5 MPa (state 1) enters the condenser and leaves it as saturated liquid at the same pressure (state 2). The pressure in the evaporator is 0.01 MPa. The condenser and the evaporator processes are isobaric. The compressor is adiabatic and reversible. The valve is adiabatic. A. List all the known information and assumptions. B. Determine the heat output of the condenser (QH) C. Determine the heat input of the evaporator(Qc) D. Determine the coefficient of performance of the heat pump. E. Determine the coefficient of performance of a Carnot heat pump running between the same temperatures TH and TC at the evaporator and condenser. F. Calculate the entropy generation in the compressor. G. Draw the TS diagram for the cycle on paper. (Hint: you must calculate T1, T2, T3, T4, h1, h2, h3, h4, s1, s2, s3, s4, and draw…

Determine the sum of the rate of exergy destruction, in Btu/h, in the turbine, process heat exchanger, trap, and pump. PLEASE ANSWER ASAP THANK U