Engineering, 05.12.2019 17:31, sairaanwar67

Ethylene glycol is heated from 25°c to 40°c at a rate of 2.5 kg/s in a horizontal copper tube (k = 386 w/m·k) with an inner diameter of 2.0 cm and an outer diameter of 2.5 cm. a saturated vapor (tg = 110°c) condenses on the outside-tube surface with the heat transfer coefficient (in kw/m2 ·k) given by 9.2/(tg − tw) 0.25 , where tw is the average outside-tube wall temperature. what tube length must be used? take the properties of ethylene glycol to be rho = 1109 kg/m3 , cp = 2428 j/kg·k, k = 0.253 w/m·k, μ = 0.01545 kg/m·s, and pr = 148.5.

Answers: 1

Show answers

Other questions on the subject: Engineering

Engineering, 04.07.2019 18:20, mjcbs21

What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.

Answers: 3

continue

Engineering, 04.07.2019 18:20, samantha636

Avolume of 2.65 m3 of air in a rigid, insulated container fitted with a paddle wheel is initially at 264 k, 5.6 bar. the air receives 432 kj by work from the paddle wheel. assuming the ideal gas model with cv = 0.71 kj/kg • k, determine for the air the amount of entropy produced, in kj/k

Answers: 2

continue

Engineering, 04.07.2019 18:20, cristykianpour

Describe one experiment in which the glass transition temperature and melting temperature of a totally amorphous thermoplastic material can be determined. show the relevant experimental results in a diagram which should be properly annotated with the two temperatures clearly marked. what is likely to happen to the curve in the diagram if the amorphous polymer is replaced by a thermosetting type?

Answers: 2

continue

Engineering, 04.07.2019 18:20, rhussein6452

Wiy doeres rere okhn a pump whon working betwon the same pressure range?

Answers: 2

continue

Do you know the correct answer?

Ethylene glycol is heated from 25°c to 40°c at a rate of 2.5 kg/s in a horizontal copper tube (k = 3...