Engineering, 24.09.2020 01:01, itsyourgirll
A thin electrical heater is wrapped around the outer surface of a long cylindrical tube whose inner surface is maintained at a temperature of 6°C. The tube wall has inner and outer radii of 24 and 78 mm, respectively, and a thermal conductivity of 10 W/m · K. The thermal contact resistance between the heater and the outer surface of the tube (per unit length of the tube) is R ′ t , c = 0.01 m ⋅ K / W . The outer surface of the heater is exposed to a fluid with T[infinity] = −10°C and a convection coefficient of h = 100 W/m2 · K. Determine the heater power per unit length of tube required to maintain the heater at To = 25°C.
Answers: 1
Engineering, 04.07.2019 18:10, dval1146
You are making beer. the first step is filling the glass carboy with the liquid wort. the internal diameter of the carboy is 15 in., and you wish to fill it up to a depth of 2 ft. if your wort is drawn from the kettle using a siphon process that flows at 3 gpm, how long will it take to fill?
Answers: 1
Engineering, 04.07.2019 18:20, CelesteN64
Most leaks in reciprocating air compressors can be detected and minimized by: (clo4) a)-detecting leakage areas using ultrasonic acoustic detector. b)-tightening joints and connections c)-replacing faulty equipment d)-all of the given options
Answers: 2
A thin electrical heater is wrapped around the outer surface of a long cylindrical tube whose inner...
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