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Propane at 8 bars and 80oC is contained in a closed, rigid vessel with a volume of 10 m3. Its temperature drops due to heat transfer to the surroundings. Determine (a) the temperature at which condensation first occurs and (b) the fraction of the total mass that has condensed when the pressure reaches 5 bars. Also, find the volume occupied by saturated liquid (in m 3 ) when the pressure reaches 5 bars.
an air-water vapor mixture enters an adiabatic saturator at 30 degree c and leave at 20 degree c which is the adiabatic
a strain gage system is mounted on an airplane wing to measure wing oscillations and strain during wind gusts. the
a closed system contains 0.8 kg of air initially at 155 kpa with a volume of 0.45 m3. the system undergoes a polytropic
a cylinderpiston contains carbon dioxide at 1 mpa 300oc with a volume of 200 l. the total external force acting on the
a refrigerator uses a compressor that employs r-134a as the refrigerant. determine the power requirement w and
2.2 lb of ammonia in a piston cylinder assembly undergoes two isothermal processes in series. The first process from an initial state where p1=120lbf/in^2 with a quality is 85% to a final state where the ammonia is saturated vapor. D
A 40 mm diameter hole is drilled 3 m deep into the steel shaft. When the two torque are applied, determine (a) the maximum shear stress in the shaft: and (b) the angle of rotation of the free end of the shaft. Use G= 83GPa for steel.
because of poor lubrification the pulley must overcome a constant friction moment of 12 nm as it rotates. assuming no
design an al-si brazing filler alloy that will be used to join an al-mg alloy. the al-mg alloy has a solidus
The capillary rise, h, of a liquid in a tube varies with tube diameter, d, gravity, g, fluid density, roe , surface tension, Y, and the contact angle, B. (a) Find the dimensionless form of this statement. (b) If h = 3 [cm] in a given experiment, what..
refrigerant 134a enters an adiabatic compressor as saturated vapor at 200kpa at a rate of 30 kgmin and is composed to a
a resistance-based thermometer is commonly used in the industry to measure temperature. when the temperature of the
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