Engineering, 07.12.2019 04:31 Arellano4672
A1 ft2 shallow pan with adiabatic sides is filled to the brim with water at 32 degree f. it radiates to a night sky whose temperature is -18 degree f, while a 50 degree f breeze blows over it at 1.5 ft/s. will the water freeze or warm up?
Answers: 2
Engineering, 04.07.2019 12:10, Ryantimes2
On a average work day more than work place firs are reorted
Answers: 1
Engineering, 04.07.2019 18:10, abdirahmansoloman
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
A1 ft2 shallow pan with adiabatic sides is filled to the brim with water at 32 degree f. it radiates...
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