subject
Engineering, 22.08.2019 00:30 NJSX54661

Atwo-stage double-acting compressor operating at 200 rpm takes in air at 1.013 bar and 27 °c. the size of the l. p. cylinder is 350 x 380 mm; the stroke of h. p. cylinder is the same as that of the l. p. cylinder and the clearance of both the cylinders is 4%. the l. p. cylinder discharges the air at a pressure of 4.052 bar. the air passes through the intercooler so that it enters the h. p. cylinder at 27 °c and 3.85 bar, finally it is discharged from the compressor at 15.4 bar. the value of n in both cylinders is 1.3, cp = 1.0035 kj/kg k and r = 0.287 kj/kg k, calculate: (i) the heat rejected in the intercooler; (ii) the diameter of h. p. cylinder; (iii) the power required to drive the h. p. cylinder.

ansver
Answers: 3

Other questions on the subject: Engineering

image
Engineering, 03.07.2019 14:10, makaylashrout77
Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.
Answers: 2
image
Engineering, 04.07.2019 18:20, ashleyjaslin
Derive the correction factor formula for conical nozzle i=-(1+ cosa) and calculate the nozzle angle correction factor for a nozzle whose divergence hal-fangle is 13 (hint: assume that all the mass flow originates at the apex of the cone.
Answers: 3
image
Engineering, 04.07.2019 18:20, krojas015
Asolid cylinder is concentric with a straight pipe. the cylinder is 0.5 m long and has an outside diameter of 8 cm. the pipe has an inside diameter of 8.5 cm. the annulus between the cylinder ad the pipe contains stationary oil. the oil has a specific gravity of 0.92 and a kinematic viscosity of 5.57 x 10-4 m2/s. most nearly, what is the force needed to move the cylinder along the pipe at a constant velocity of 1 m/s?
Answers: 3
image
Engineering, 04.07.2019 18:20, maustin5323
Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]
Answers: 1
You know the right answer?
Atwo-stage double-acting compressor operating at 200 rpm takes in air at 1.013 bar and 27 °c. the si...

Questions in other subjects:

Konu
Mathematics, 20.01.2021 23:10
Konu
English, 20.01.2021 23:10
Konu
History, 20.01.2021 23:10