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A fixed amount of moist air initially at 1 bar and a relative humidity of 60% is compressed isothermally until condensation of water begins. Determine the pressure of the mixture at the onset of condensation, in bar. Repeat if the initial relative humidity is 90%.
The drive shaft to a boat's propeller is 50 mm in diameter. If a 25 mm diameter hole is bored along its length calculate the percentage saving in weight and the percentage reduction in torsional streng
Determine the change in pressure for an adiabatic process using Argon that has an initial volume of 105-in3 and an initial pressure of 19-psia and a final volume of 19.1-in3.
a 2 kw resistance heater wire with thermal conductivity k 15 wm-k diameter d .4 cm and length 50 cm is used to boil
a carnot refrigerator consuming 3.0 kw is located in a room where the air temperature is 25degc. the coefficient of
homebuilding has undergone significant advances in the last 20 years due largely to replacement of hand tools hammers
suppose that you want to design a column to support a uniform compressive stress stress naught. if the columns cross
A trapezoidal channel with a bottom width of 4.00 feet and side slopes of 2 horizontal to 1 vertical conveys a discharge of 300 cfs. If the depth of flow is 2.25 feet, what is the Froude number? Is the flow subcritical or supercritical?
1 kmol of n2 gas ideal is contained in a piston initially at 300k with a volume of 0.1 m3. the piston cylinder is well
A gas turbine power plant operates on the simple Brayton cycle between the pressure limits of 100 and 1600 kPa. The working fluid is air, which enters the compressor at 40 degrees Celsius and leaves at 650 degrees Celsius. Using constant specific hea..
Water vapor enters a turbine at p1= 5 bar, T1=320? C and exits at p2 = 1 bar. The work generated is measure as 250 KJ per kg of water vapor flowing. Determine the isentropic turbine efficiency.
Show that the specific heat at saturation of a liquid phase of mass m (defined by Cf= (deltaQ/m)dt is generally not the same as the specific heat at constant pressure of the saturated liquid.
A torque T is introduced from the right end of the shaft and removed at the gear wheel. The number of stepped section is given, however the length of each section and their diameters are unknown and need to be determined. Determine the length and ..
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