Engineering, 22.09.2020 21:01 mckennacwilliams
Refrigerant -134a at 140 kPa and -10∘C is compressed by an adiabatic 1.3-kW compressor to an exit state of 700 kPa and 60∘C. Neglecting the changes in kinetic and potential energies, determine
(a) the isentropic efficiency of the compressor,
(b) the volume flow rate of the refrigerant at the compressor inlet in L/min, and
(c) the maximum volume flow rate at the inlet conditions that this adiabatic 1.3-kW compressor can handle without violating the second law
Answers: 1
Another question on Engineering
Engineering, 03.07.2019 14:10
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
Engineering, 04.07.2019 18:20
Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false
Answers: 2
Engineering, 04.07.2019 18:20
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
Engineering, 04.07.2019 18:20
Find the kinematic pressure of 160kpa. for air, r-287 j/ kg k. and hair al viscosity of air at a temperature of 50°c and an absolute (10 points) (b) find the dynamic viscosity of air at 110 °c. sutherland constant for air is 111k
Answers: 3
You know the right answer?
Refrigerant -134a at 140 kPa and -10∘C is compressed by an adiabatic 1.3-kW compressor to an exit st...
Questions
Mathematics, 31.10.2019 23:31
Chemistry, 31.10.2019 23:31
Mathematics, 31.10.2019 23:31
Mathematics, 31.10.2019 23:31
History, 31.10.2019 23:31
Mathematics, 31.10.2019 23:31
Mathematics, 31.10.2019 23:31
Biology, 31.10.2019 23:31
World Languages, 31.10.2019 23:31
Mathematics, 31.10.2019 23:31
