Engineering, 19.11.2019 05:31 Abdul111

Aﬂat-plate collector with one cover is inclined at a slope of 50◦ from the horizontal. the plate temperature is 100◦c and its emittance is 0.10. the cover temperature is 31.5◦c, and the (glass) cover has an emittance of 0.88. the plate-cover spacing is 25mm. a calculate the radiative transfer from plate to cover. b calculate a radiation heat transfer coefﬁcient from plate to cover. c calculate the convective transfer from plate to cover. d given an effective surrounding temperature of 10◦c, estimate the net radiative exchange between the cover and the surroundings.

Answers: 3

Show answers

Other questions on the subject: Engineering

Engineering, 03.07.2019 15:10, breannaasmith1122

Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.

Answers: 1

continue

Engineering, 04.07.2019 16:10, Arealbot

The force on a cutting tool are 2600n vertically downward and 2100 horizontal. determine the resultant force acting on the tool and the angle at which it acts.

Answers: 1

continue

Engineering, 04.07.2019 18:10, tjeffers90028

Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.

Answers: 1

continue

Engineering, 04.07.2019 18:10, agpraga23ovv65c

Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.

Answers: 2

continue

You know the right answer?

Aﬂat-plate collector with one cover is inclined at a slope of 50◦ from the horizontal. the plate tem...