subject
Engineering, 20.08.2019 17:30 swordnewsnetwork

A50-mm-diameter, thin-walled metal pipe covered with a 25-mm-thick layer of insulation (0.085 w/m k) and carrying superheated steam at atmospheric pressure is suspended from the ceiling of a large room. the steam temperature entering the pipe is 120°c, and the air temperature in the room is 20°c. the convection heat transfer coefficient on the outer surface of the covered pipe is 10 w/m2 k. the velocity of the steam in the pipe is 10 m/s. the steam temperature at the outlet of the pipe is at tmo =106°c. 1)- calculate the temperature of the pipe’s surface at the exit of the pipe (tso) using the resistance model at the outlet of the pipe. 2)- what would happen if tmo was cooler than 106°c? note: since the degree of superheat is small (120°c is only 20°c above the saturation temperature), the vapor properties of saturated steam (gas) can be used for this problem. this would be a valid assumption. note: assume there is no condensation

ansver
Answers: 3

Another question on Engineering

question
Engineering, 04.07.2019 12:10
On a average work day more than work place firs are reorted
Answers: 1
question
Engineering, 04.07.2019 18:10
Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.
Answers: 3
question
Engineering, 04.07.2019 18:10
Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10
Answers: 1
question
Engineering, 04.07.2019 18:10
Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.
Answers: 1
You know the right answer?
A50-mm-diameter, thin-walled metal pipe covered with a 25-mm-thick layer of insulation (0.085 w/m k)...
Questions
question
Mathematics, 05.05.2021 02:50
question
Biology, 05.05.2021 02:50
Questions on the website: 13722361