Engineering, 10.03.2020 00:27 hamichrit2412
An air conditioner is designed to bring 10,000 ft3/min of outside air (90°F, 29.8 inches Hg, 88% relative humidity) to 40°F, thereby condensing a portion of the water vapor, and then to reheat the air before releasing it into a room at 65°F. Calculate the rate of condensation (gallons H2O/min) and the volumetric flow rate of the air delivered to the room. (Suggestion: On the flowchart, treat the cooling–condensation and the reheating as separate process steps.)
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Engineering, 04.07.2019 18:10
Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented
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Engineering, 04.07.2019 18:10
Burgers vector is generally parallel to the dislocation line. a)-true b)-false
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Engineering, 04.07.2019 18:10
True or false (explain) (110)[111] is a slip system in bcc metals . the {111} family in fcc contains 8 planes. resolved shear stress (rss) in single crystals is just related to the applied stress. critical resolved shear stress (crss) in single crystal metals is direct proportional to the number of defects in the structure
Answers: 2
Engineering, 04.07.2019 18:20
Avolume of 2.65 m3 of air in a rigid, insulated container fitted with a paddle wheel is initially at 264 k, 5.6 bar. the air receives 432 kj by work from the paddle wheel. assuming the ideal gas model with cv = 0.71 kj/kg • k, determine for the air the amount of entropy produced, in kj/k
Answers: 2
An air conditioner is designed to bring 10,000 ft3/min of outside air (90°F, 29.8 inches Hg, 88% rel...
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