Engineering, 26.07.2019 17:20 steven2996
Air is at 100 kpa and 150°c, and undergoes a constant pressure process. the final temperature of the air is 1000°c. a) compute the specific volume ratio. b) compute the boundary work (kj/kg) c) compute the change in specific internal energy.
Answers: 1
Engineering, 04.07.2019 18:10
Air is to be cooled in the evaporator section of a refrigerator by passing it over a bank of 0.8-cm-outer-diameter and 0.4-m-long tubes inside which the refrigerant is evaporating at -20°c. air approaches the tube bank in the normal direction at 0°c and 1 atm with a mean velocity of 4 m/s. the tubes are arranged in-line with longitudinal and transverse pitches of sl- st 1.5 cm. there are 30 rows in the flow direction with 15 tubes in each row. determine (a) the refrigeration capacity of this system and (b) pressure drop across the tube bank. evaluate the air properties at an assumed mean temperature of -5°c and 1 atm. is this a good assumption?
Answers: 1
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 19:10
Starting wih an energy balance on a rectangular volume element, derive the one- dimensional transient heat conduction equation for a plane wall with constant thermal conductivity and no heat generation.
Answers: 1
Engineering, 04.07.2019 19:20
The quality is zero at a)-the saturated vapour state b)-the saturated liquid state c)-the saturated liquid-vapour mixture state d)-none of the states in the other answers
Answers: 3
Air is at 100 kpa and 150°c, and undergoes a constant pressure process. the final temperature of the...
Mathematics, 14.12.2019 23:31
Health, 14.12.2019 23:31
Mathematics, 14.12.2019 23:31
History, 14.12.2019 23:31
History, 14.12.2019 23:31
Biology, 14.12.2019 23:31
Geography, 14.12.2019 23:31
Mathematics, 14.12.2019 23:31
History, 14.12.2019 23:31
Mathematics, 14.12.2019 23:31
History, 14.12.2019 23:31
Mathematics, 14.12.2019 23:31
Mathematics, 14.12.2019 23:31