Engineering, 12.11.2020 17:10 maya4321

13.2-4. Convection, Conduction, and Overall U. A gas at 450 K is flowing inside a 2-in. steel pipe, Schedule 40. The pipe is insulated with 51 mm of lagging having a mean k = 0.0623 W/m · K. The convective heat-transfer coefficient of the gas inside the pipe is 30.7 W/m2 · K and the convective coefficient on the outside of the lagging is 10.8. The air is at a temperature of 300 K. a. Calculate the heat loss per unit length of 1 m of pipe using resistances. b. Repeat, using the overall Uo based on the outside area Ao

Answers: 3

Show answers

Other questions on the subject: Engineering

Engineering, 04.07.2019 18:10, keigleyhannah30

Aplate clutch has a single pair of mating friction surfaces 250-mm od by 175-mm id. the mean value of the coefficient of friction is 0.30, and the actuating force is 4 kn. a) find the maximum pressure and the torque capacity using the uniform-wear model. b) find the maximum pressure and the torque capacity using the uniform-pressure model.

Answers: 3

continue

Engineering, 04.07.2019 18:10, Candi9697

A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.

Answers: 2

continue

Engineering, 04.07.2019 18:20, sarah7984

Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false

Answers: 2

continue

Engineering, 04.07.2019 18:20, rjone8429

Asimple rankine cycle uses water as the working fluid. the water enters the turbine at 10 mpa and 480c while the condenser operates at 6 kpa. if the turbine has an isentropic efficiency of 80 percent while the pump has an isentropic efficiency of 70 percent determine the thermal efficiency

Answers: 1

continue

You know the right answer?

13.2-4. Convection, Conduction, and Overall U. A gas at 450 K is flowing inside a 2-in. steel pipe,...