Engineering, 23.10.2019 02:00 kiki4832

Superheated steam at an average temperature of 200°c is transported through a steel pipe (k=50 w/m-k, do = 8 cm, di = 6 cm and l = 20 m). the pipe is insulated with a 4 cm thick gypsum plaster (k=0.5 w/m-k). the insulated pipe is placed horizontally in a warehouse where the average temperature is 10°c. the steam and air side heat transfer coefficients are 800 and 200 w/m²- k respectively. calculate a) rate of heat transfer from the superheated steam b) outside surface temperature of the insulation.

Answers: 1

Show answers

Another question on Engineering

Engineering, 04.07.2019 18:10

Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.

Answers: 2

Answer

Engineering, 04.07.2019 18:10

Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.

Answers: 3

Answer

Engineering, 04.07.2019 18:10

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

Answer

Engineering, 04.07.2019 18:20

Have a greater impact on maintenance productivity than any other support group. (clo5) a)-the top management b)-inventory and purchasing c)-sub-contracting d)-cmms

Answers: 2

Answer

You know the right answer?

Superheated steam at an average temperature of 200°c is transported through a steel pipe (k=50 w/m-k...

Questions