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A 3.03-ft3 rigid tank contains saturated refrigerant- 134a at 100 psia. Initially, 17 percent of the volume is occupied by liquid and the rest by vapor. A valve at the top of the tank is now opened, and vapor is allowed to escape slowly from the tank. Heat is transferred to the refrigerant such that the pressure inside the tank remains constant. The valve is closed when the last drop of liquid in the tank is vaporized. Determine the total heat transfer for this process.
In a yogurt-filling line the containers are filled with 1 kg of yogurt. The mass of the yogurt is measured while the filling nozzle is open. The nozzle flow rate is 0.20 Kg/sec. Several factors affect the flow rate, including the density and the visc..
a blower develops 750mm of water gauge at a speed of 1480rpm and a flow rate of 38cubicmeter per sec. determine the
two bars one having a circular section of radius b the other an elliptic section with semiaxes ab.for equal angles of
a 9 mm bullet with mass 0.28 oz 0.0175 lbm exits a pistol at 1250 fts find the kinetic energy in btu. if this bullet
a shock absorber is to be designed to limit its overshoot to 15 percent of its initial displacement when released. find
Water flows through a duct of varying area. The difference in stagnation pressures between two sections is 4.5 x 10^5 N/M^2. If the water remains at a constant temp, how much heat will be transferred in this lenght of duct?
air enters the 1.5 m2 inlet of an aircraft engine at 100kpa and 10degc with a velocity of 200ms. determine the volume
silica sio2 is formed on silicon as an electrically insulating layer for microelectronic devices. silica is formed when
Model the earth as a sphere with a diameter of 8,000 miles. Using 14.7 psia as the average pressure at the earth's surface and ignoring variation in g with altitude, estimate the weight of the earth's atmosphere in lbf, and its mass in lbm.
The heating is to be done in a mixing tank by direct injection of the steam, all of which condenses. Determine the two inlet mass flows needed to meet the desired hot water flow rate.
Find graphically the forces f1 and f2 in the crane. The triangle is standing up with a 90 degree angle next to the wall on top, with f1 pointing towards it
a steam generator in a power plant consists of two separate heat exchanger devices a boiler which converts compressed
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