Engineering, 11.06.2020 00:57 princeton

Pressure Decrease (Isentropic Process) During a reversible adiabatic process of 1 lbm of an ideal gas in a piston-cylinder, the pressure decreases from 196.8 psi to 15.8 psi. The gas constant is 37.7 ft. lb/lbm. oR and the initial temperature of the gas is 863 oF. Determine
a) the initial and final gas density in [Ibm/ft'].
b) the total work produced in [ft. lb].
c) the total change in internal energy in [Btu].
Assume that the specific heat at constant pressure is cp 0.22 Btu/lbm.
pi = 0.568 Ibm/ft3
W = -75,210 ft. lb
AU = -96.3
p2 = 0.080 lbm/ft3

Answers: 2

Show answers

Another question on Engineering

Engineering, 04.07.2019 18:10

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.

Answers: 3

Answer

Engineering, 04.07.2019 18:10

The flow rate of air through a through a pipe is 0.02 m5/s. a pitot static tube is placed in the flow. the radius of the pitot static tube is 1 mm. assuming the flow to be steady and the air to be at 300k, calculate the difference in total and static pressure if the diameter of the pipe is: (a) d 0.1 m d 0.05 m (c) d 0.01 m

Answers: 2

Answer

Engineering, 04.07.2019 18:20

Amixture of slurry and mud is to be pumped through a horizontal pipe of diameter 500 mm. the fluid behaves as a bingham plastic with a yield stress of 30 pa and viscosity 0.04 pa.s. describe the effects of the shear stress through a transverse section of the pipe by plotting the variation in shear stress and velocity profile: (i) just before the slurry starts to move (ii) as the slurry flows when the pressure gradient is double that in part (i)

Answers: 3

Answer

Engineering, 04.07.2019 19:10

Plan an experiment to measure the surface tension of a liquid similar to water. if necessary, review the ncfmf video surface tension for ideas. which method would be most suitable for use in an undergraduate laboratory? what experimental precision could be expected?

Answers: 2

Answer

You know the right answer?

Pressure Decrease (Isentropic Process) During a reversible adiabatic process of 1 lbm of an ideal g...

Questions