Engineering, 25.09.2021 20:30, angelagonzalesownus1
Liệt kê 10 quá trình sản xuất trong công nghiệp có sử dụng chất xúc tác
Answers: 2
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
Engineering, 04.07.2019 18:10, oshawn108
Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg. k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m. k
Answers: 2
Engineering, 06.07.2019 03:10, lwattsstudent
List and describe in sequence the operation process steps for boxf machine?
Answers: 1
Liệt kê 10 quá trình sản xuất trong công nghiệp có sử dụng chất xúc tác...
Social Studies, 08.03.2021 20:20
Mathematics, 08.03.2021 20:20
Social Studies, 08.03.2021 20:20
Mathematics, 08.03.2021 20:20
Mathematics, 08.03.2021 20:20
Mathematics, 08.03.2021 20:20