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Steam flows steadily through an adiabatic turbine. The inlet conditions of the steam are 10 MPa, 450 ºC, and 80 m/s, and the exit conditions are 10 kPa, 92 % quality, and 50 m/s.
Find the actual cycle coefficient of performance, the rate of waste heat rejection (kJ/hr) and electrical cost per hour. Repeat/Compare results for COP, waste heat rate.
A four cylinder, 2.4 liter engine operates on a four stroke cycle at 3200 RPM. The compression ration is 9.4:1, the connecting rod length r = 18 cm, and the bore and stroke are relate as S = 1.06 B.
A rigid, high-pressure tank has a volume of 3.8ft3 and containss nitrogen at 185 psia and at 290 F. A small leak develops in a valve connected to the tank, and the mass flow rate through the leak is
A steam engine consists of a boiler connected to a turbine. The boiler tank has a volume of 100 L and initially contains saturated liquid with a very small amount of vapor at 100 kPa
Five kilograms of saturated water vapor is contained in a closed rigid tank at an initial pressure of 4 MPa. The pressure of the water drops to 2 MPa as a result of heat transfer to the surroundings
If the radiator should transfer 34 hp, what is the mass flow rate of the glycerine and what is the volume flowrate of air in at 14.7 psia?
Assume that the velocity V, of fall of an object depends on the height H, through which it falls, the gravity g, and the mass m, of the object. Find an expression for V. Use the same procedure that
They mix without any heat transfer to produce an exit flow at 100 kPa. Neglect kinetic energies and find the exit temperature and volume flow rate.
An aluminum pan whose thermal conductivity is 237 has a flat bottom whose diameter is 20 cm and thickness 0.4 cm. Heat is transferred steadily to the boiling water through the bottom of the pan.
The piston diameters in Fig. P3-119 are D1 = 3 in and D2 = 2 in. The pressure in chamber 3 is 30 psia. Chamber 1 contains 0.5 Ibm of air, and chamber 2 is filled with condensing R-134a.
An aircraft flying at 10,000 feet uses a Pitot-static tube to measure speed. The instrumentation on the aircraft provides the differential pressure as well as the local static pressure and the local
Oil is flowing in a pipeline at a rate of 20 ft3/sec. The friction drop in the pipeline is 50 ft per mile. Each pumping station is to be equipped with a 500 hp pump with an efficiency of 80%.
Two large water reservoirs are connected by 8,000 ft of schedule 40 steel pipe. The level of one reservoir is 500 ft above the level of the other, and water is flowing steadily through the pipe from
A system consists of carbon monoxide (CO) in a piston- cylinder assembly, initially at P1= 200 lbf/in^2 , and occupying a volume of 2.0m^3 . The carbon monoxide expands to P2= 40 lbf/in^2 and a fina
The length of the assembly shown decreases by 0.40mm when an axial force is applied by means of rigid end plates. Determine a. the magnitude of the applied force, b. the corresponding stress in the
A diffuser for an incompressible, inviscid fluid of density ? = 1000 kg/m3 consists of a diverging section of pipe. At the inlet, the diameter of the pipe is Di = 0.25 m, and at the outlet the diame
A 250 mm diameter x 25 mm width grinding wheel operates at 2600 rev/min, in-feed is 0.05 mm/pass, cross-feed is 3.50 mm. Reciprocating work speed is 6 m/min and the grinding is dry.
The undeformed length of the spring is l. Knowing that the collar is released from rest at x = and neglecting friction between the collar and the horizontal rod, determine the magnitude of the veloc
An electric field is E=(400N/C)i for x>0 and E=(-400N/C)i for x<0. A cylinder of length 30cm and radius 10cm has its center at the origin and its axis along the x axis such that one end is at
A concrete pipe with an inside and outside diameter of 60 cm and 70 cm, respectively, hangs from cables. The pipe is supported at two locations, and a spreader bar maintains cable segments AB and AC
A supersonic nozzle is also a convergent-divergent duct, which is fed by a large reservoir at the inlet to the nozzle. In the reservoir of the nozzle, the pressure and temperature are 10 atm and 300
Air at 200 kPa and 950 K enters an adiabatic nozzle at low velocity and is discharged at a pressure of 80 kPa. If the isentropic efficiency of the nozzle is 92 percent.
A tank open to the atmosphere initially contains 2 lb of liquid water initially at 80°F and 0.4 lb of ice initially at 32°F. All of the ice melts as the tank contents attain equilibrium.
The Load is supported by the four 304 stainless steel wires that are connected to the rigid members AB and DC. Determine the vertical displacement of the 500-lb load if the members were originally