Engineering, 19.07.2019 21:30 Babyyygggirl26
Air is entering a 4200-kw turbine that is operating at its steady state. the mass flow rate is 20 kg/s at 807 c, 5 bar and a velocity of 100 m/s. this air then expands adiabatically, through the turbine and exits at a velocity of 125 m/s. afterwards the air then enters a diffuser where it decelerates isentropically to a velocity of 15 m/s and a pressure of 1 bar. using the ideal gas model, determine, (a) pressure and temperature of the air at the turbine exit, in units of bar and kelvin. (b) entropy production rate in the turbine in units of kw/k, and (c) draw the process on a t-s diagram.
Answers: 3
Engineering, 04.07.2019 18:10
The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false
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Engineering, 04.07.2019 18:10
If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79
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Engineering, 04.07.2019 18:10
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
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Engineering, 04.07.2019 18:10
Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.
Answers: 1
Air is entering a 4200-kw turbine that is operating at its steady state. the mass flow rate is 20 kg...
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