Engineering, 04.08.2020 14:01 dianaosorio33895
Problem 2 A Brayton-refrigeration cycle with a regenerative heat exchanger operates with a compressor and turbine at 86% efficiency. The compressor receives air at 480°R, 14.7 psi which is compressed to 40 psi. Compressed air enters the regenerative heat exchanger at 540°R and cools down to 480°R before entering the turbine. If the refrigeration capacity is 15 tons, calculate: the volume flow rates entering the compressor and turbine. the coefficient of performance.
Answers: 3
Engineering, 04.07.2019 16:10
The force on a cutting tool are 2600n vertically downward and 2100 horizontal. determine the resultant force acting on the tool and the angle at which it acts.
Answers: 1
Engineering, 04.07.2019 18:10
Journeyman training is usually related (clo2) a)-to specific tasks b)-to cost analysis of maintenance task c)-to control process to ensure quality d)-to installation of machinery
Answers: 2
Engineering, 04.07.2019 18:20
Most leaks in reciprocating air compressors can be detected and minimized by: (clo4) a)-detecting leakage areas using ultrasonic acoustic detector. b)-tightening joints and connections c)-replacing faulty equipment d)-all of the given options
Answers: 2
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
Problem 2 A Brayton-refrigeration cycle with a regenerative heat exchanger operates with a compresso...
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