Engineering, 19.09.2021 23:40 aaminohasan142
Lựa chọn hợp lý các loại vật liệu để chế tạo các chi tiết trong ô tô
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Engineering, 04.07.2019 19:20
Consider airflow over a flat plate of length l = 1.5 m under conditions for which transition occurs at le = 0.9 m based on the critical reynolds number, re,e = 5 x 10. evaluating the thermophysical properties of air at 400 k, determine the air velocity. (hint: use the tables to find the properties of air)
Answers: 3
Engineering, 06.07.2019 05:10
Air undergoes a constant pressure cooling process with no moisture added or removed. the air originally exists at 45 °c, 150 kpa and 35 % relative humidity. it is cooled until the temperature reaches 29 oc. determine (a) the relative humidity of the cooled air. (b) the dew point temperature of the cooled air in °c. (c) the heat removed during the cooling process in kj/kg. use the psychrometric chart to check your answers (this part will not be graded; however, it will you get comfortable using the psychrometric chart)
Answers: 3
Engineering, 06.07.2019 05:20
Calculate the angle of incidence of beam radiation on a surface located at glasgow (56°n, 4°w) at 10 a.m. on 1 february, if the surface is oriented 20° east of south and tilted at 40° to the horizontal
Answers: 1
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