Engineering, 14.04.2020 15:57, krazziekidd2p845ri
Steam at 300 psia and 700 F enters a nozzle under steady conditions. The mass flow rate is 10 lbm/s. Steam leaves the nozzle at 200 psia with a velocity of 900 ft/s. The nozzle loses heat at the rate of 1.2 BTU per pound of steam flow. Determine the a) Inlet Velocity (inlet area
Answers: 2
Engineering, 04.07.2019 18:10, hadellolo8839
Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false
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Engineering, 04.07.2019 18:20, maciemarklin79981
A3-mm-thick panel of aluminum alloy (k 177 w/m-k, c 875 j/kg-k and ? = 2770 kg/m) is finished on both sides with an epoxy coating that must be cured at or above t,-150°c for at least 5 min. the production line for the curing operation involves two steps: (1) heating in a large oven with air at ts,0-175°c and a convection coefficient of h, 40 w/m2. k, and (2) cooling in a large chamber with air at 25°c and a con- vection coefficient of he 10 w/m2.k. the heating portion of the process is conducted over a time interval te which exceeds the ime required to reach 150°c by 5 min (h = r + 300 s). the coating has an emissivity of ? = 0.8, and the temperatures of the oven and chamber walls are 175 and 25°c, respectively. if the panel is placed in the oven at an initial temperature of 25°c and removed from the chamber at a safe-to-touch tempera ture of 37°c, what is the total elapsed time for the two-step curing operation?
Answers: 3
Engineering, 04.07.2019 19:20, dndndndnxmnc
The process in which the system pressure remain constant is called a)-isobaric b)-isochoric c)-isolated d)-isothermal
Answers: 3
Steam at 300 psia and 700 F enters a nozzle under steady conditions. The mass flow rate is 10 lbm/s....
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