Chapter 8, Problem 8.82P

A geothermal powerplant uses steam that enters  a nozzle @ 973.15 K at 300 kpa under a velocity of having 20 m/sec, such that the steam exits at  200 kpa. The operator provides the process that is adiabatic and reversible. Calculate the ff. a. going out velocity of steam b. the going out temperature c. the sp. enthalpy at going out.

A Factory uses a vapor absorption refrigerator to cool its products, the heat is supplied to generator by steam at 150 C (hfg=2500kJ/kg) and 90% dry. The temperature of the evaporator is to be maintained at -5 C. the refrigeration capacity is 20 Tonnes and actual COP is 70% of the maximum, atmospheric Pressure is 1 bar and ambient temperature 30 C. find the maximum COP. mass of steam per hour

R-134a as a refrigerant, in a cooling machine used; refrigerant to evaporator (evaporator) 0.15 drynessIt enters with a temperature of -12 oC and a flow rate of 0.028 kg/s and leaves the evaporator as saturated steam. cooling machineSince it works according to the reverse Carnot cycle and the compressor consumes 1.45 kW of power a) Find the efficiency coefficient of the cooling machine. b) Calculate the heat given to the outside environment c) Calculate the condenser temperature

R-134a as a refrigerant, in a cooling machine used; refrigerant to evaporator (evaporator) 0.15 drynessIt enters with a temperature of -12oC and a flow rate of 0.028 kg/s and leaves the evaporator as saturated steam. cooling machineSince it works according to the reverse Carnot cycle and the compressor consumes 1.45 kW of power a) Find the efficiency coefficient of the cooling machine. b) Calculate the heat given to the outside environment c) Calculate the condenser temperature

The turbine section in a jet engine receives gas (assume air) at 1200 K, 800 kPa with an ambient atmosphere at 80 kPa. The turbine is followed by a nozzle open to the atmosphere and all the turbine work drives a compressor receiving air at 85 kPa, 270 K with the same flow rate. Find the turbine exit pressure P₂ so the nozzle has an exit velocity of 800 m/s.

A compressor receives R-410A as saturated vapor R-410A at 400 kPa and brings it to 2000 kPa, 60°C. Then a cooler brings it to saturated liquid at 2000 kPa (see Fig. below). Find the specific compressor work and the specific heat transfer in the cooler? A eccoi = Compressor Compressor section Cooler section

A refrigerator compressor receives R-134a at a rate of 0.08 kg/s at -10 C, 150 kPa and delivers it at 1000 kPa, , 50 C. The input power to the compressor is 3.5 kW. The compressor is cooled with atmospheric air coming in at 25 C and leaving at 32 C. Determine the mass flow rate of airTake the air as an ideal gas with constant specific heat Cpair . That ish4-h3 = Cpair (T4-T3)

There are received 25 kg/s of steam at 2.15 MPa, 480°C by a Rankine engine; exhaust occurs at 0.10MPa. find the work of turbine in kJ/s. Insert TS diagram, Use Steam Table SI unit only

Please be very detailed