Chapter 5, Problem 5.47P

Find the quanity of heat required to produce 79% dry steam at 8000 kpa from feedwater at 50 degrees celcius ?.

Hint, find enthalpy, entropy at each state

One mol of an ideal gas is taken through The gas is subjected a three-step cyclic process. successively to an isothermal expansion at 600 K from 5 to 3 bar (path a to b), a constant-pressure cooling (b to c), and a constant-volume heating (c to a). All processes are reversible. Cy and Cp AH for each step and for the entire process. Draw the cycle on the PV diagram. Compile all results in a table, as follows: 21.686 J mol-K-1 =30 J mol-1K-1. Calculate Q, W, AU and %3D

Steam at 5.2 MPa, 4000C expands in a Rankine turbine to 0.036MPa. For 136 kg/s of steam, determine the work, the thermal efficiency, and the steam rate (a) fot the cycle(b) for the turbine, (c) for an actual turbine with the same specifications, the brake steam rate is 4.80 kg/kwh ang the driven electric generator has an efficiency of 93%, Find brake thermal efficiency , brake engine efficiency, combined work, and quality or temperature of exhaust steam. Don't answer the given problem, just give me the schematic diagram and T-S diagram of the given problem

10 moles of a diatomic gas are subjected to a thermal cycle as shown in the figure   calculate:   a) the Carnot efficiency of the cycle    b) the actual efficiency of the cycle. Consider that the CA process is adiabatic.    c) the entropy change at each stage. See the picture

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

2. The gas expanding in the combustion space of a reciprocating engine has an initial pressure of SO bar and an initial temperature of 1623*C. The initial volume is 50000 mm' and the gas expands through a volume ratio of 20 according to the law pV constant. Calculate w and AU Take R= 270 J/Kg K and C, = 800 J/Kg K. Assume n 1.38

How much heat must be supplied to 200 kg of water at 20°C to make steam at 850 ka abs and 87% dry?

A fraction of some power to a motor (1), 2 kW, is turned into heat transfer at 500 K (2) and then it dissipates in the ambient at 300 K (3). Give the rates of exergy along the process 1-2-3.