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12.48 A large room contains moist air at 308C, 102 kPa. The partial pressure of water vapor is 1.5 kPa. Determine
(a) the relative humidity.
(b) the humidity ratio, in kg(vapor) per kg(dry air).
(c) the dew point temperature, in 8C.
(d) the mass of dry air, in kg, if the mass of water vapor is 10 kg.
Four kg of water at 100°C fill a closed container having a volume of 1 m3. If the water at this state is a vapor, determine the pressure, in bar. If the water is a two-phase liquid-vapor mixture, determine the quality.
consider an internal combustion engine operating on the ideal dual cycle with thefollowing conditions two cylinder four
10 kg of ammonia is at 0c contained in a cylinder at 516 kpa by a free moving piston. it is heated until it vaporizes
estimate the common logarithm of 10 using linear interpolation.a interpolate between log80.9030900 and log121.0791812.b
a thermoelectric generator consists of a series of semiconductor elements heated on one side and cooled on the other.
Write the difference equation for the BTBC-CS method where a backward difference is used for the convection term and a central difference is used for the diffusion term. Assess the stability of the method.
Suggest why it is important to make a distinction between developing the user requirements and developing system requirements in the requirements engineering process.
a uniform rod ab of length 3m and mass 20kg is suspended with its end b against a vertical wall while its end a is
A compressor is employed to compress gas flowing steadily through it . The gas enters the compressor at a temperature of 16°C, a pressure of 100 kPa, and with an enthalpy of 391.2 kJ/kg. The gas leaves the compressor at a temperature of 245°C, a pres..
The mass flow rate through a steam turbine operating under steady conditions is 100 kg/s. Steam enters the turbine at 12 MPa and 400oC. A mixture of vapour and liquid water exits the turbine at 10 kPa. At the exit state 93% of the mass of the water i..
hydrogen at 25 bar 450degc enters an adiabatic turbine and expands to 2 bar 160degc with a mass flow rate of 0.2 kgs.
A tensile test was conducted on a mild steel bar. The following data was obtain from the testi. Dia of the steel bar= 3 cmii. Gauge length of the bar = 20cmiii. Load at elastic limit=250kNiiii. Extension at a load of 150 kN= .21mmv. Minimum load =380..
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