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Refrigerant 134a flows at steady state through a horizontal tube having an inside diameter of .05 m. The refrigerant enters the tube with a quality of .1, temperature of 36 C, and velocity of 10 m/s. The refrigerant exits the tube at 9 bar as a saturated liquid. Determine (a) the mass flow rate of the refrigerant, in kg/s. (b) the velocity of the refrigerant at the exit, in m/s. (c) the rate of heat transfer, in kW, and its associated direction with respect to the refrigerant.
the system shown starts from rest and each component moves with a constant acceleration. if the relative acceleration
A fire truck draws water from an open constant-level reservoir through a hose of 0.2 ft2 cross section. The water is discharged from the pump through another 0.2 ft2 hose to a surge tank pressurized to 120 psig with air at the top. The pump adds 970 ..
when steel is hardened it goes from a high temperature fcc unit cell to a lower temperature bcc unit cell. calculate
rope AB an AC are thrown to a boater whose canoe has capsized.Given that the angle is 25 and the magnitude of the force FR exerted by the river on the boater is 70N determine the tension in rope AB , in rope AC.
a 0.2 m3 rigid tank initially contains refrigerant 134a at 1 mpa saturated vapor. the tank is connected to a supply
The analysis of a mass basis of an ideal gas mixture at 50 F, 25 lbf/in2. is 60% CO2, 25% SO2, and 15% N2. The analysis in terms of mole fractions. Determine: The apparent molecular weight of the mixture. The partial pressure of each component in lbf..
A piston-cylinder setup filled with air, initially at 27 °C, 1 bar, changes to 17 °C, and 0.9 bar. Determine, as a present, the change in volume of the air from its initial volume. (in %)
oil sands abound in several provinces of canada. oil sands contain bitumen trapped in the sandstone. the best oil sand
A pressure cylinder (ends closed) having an internal radius of 6 inches and thickness 1 inch is subjected to an internal pressure of 5 ksi, a twisting torque of 50,000 in-lb, and a bending moment of 50,000 in-lb. Determine the principal stresses and ..
if the standard deviations are obtained to be 4n-m and 5 rpm for torque-165 n-m and rotational speed-3000 rpm through a
calculate the attractive force of equilibrium between a pair of k and br- ion that just touch eachother rk 0.133nm and
calculate the radius of a vanadium atom given that v has a bcc crystal structure a density of 5.96gcm3 and an atomic
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