Engineering, 14.04.2020 23:36, rakanmadi87
An aluminum-alloy electrical cable has k = 190 W/m · ◦C, a diameter of 30 mm, and carries an electric current of 230 A. The resistivity of the cable is 2.9 μ · cm, and the outside surface temperature of the cable is 180 ◦ C. Calculate the maximum temperature in the cable if the surrounding air temperature is 15 ◦ C
Answers: 3
Engineering, 03.07.2019 14:10, volleyballfun24
If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.
Answers: 3
Engineering, 04.07.2019 18:10, kevin72836
Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?
Answers: 2
Engineering, 04.07.2019 18:20, ashleyjaslin
Derive the correction factor formula for conical nozzle i=-(1+ cosa) and calculate the nozzle angle correction factor for a nozzle whose divergence hal-fangle is 13 (hint: assume that all the mass flow originates at the apex of the cone.
Answers: 3
Engineering, 04.07.2019 18:20, rhussein6452
Wiy doeres rere okhn a pump whon working betwon the same pressure range?
Answers: 2
An aluminum-alloy electrical cable has k = 190 W/m · ◦C, a diameter of 30 mm, and carries an electri...
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