Engineering, 31.08.2019 02:30, bussbhsvssu557
A2.5m internal diameter double walled spherical tank is used to store iced water at 0â° c. each wall is 0.5 cm thick, and the 1.5 cm thick air space between the walls of the tank is evacuated in order to minimize heat transfer. the surfaces surrounding the evacuated space are polished so that each surface has an emissivity of 0.20. the temperature of the outer wall of the tank is measured to be 25â° c assuming the inner wall of the steel tank to be at 0â° c, determine: (a) the rate of heat transfer to the iced water in the tank (b) the amount of ice at 0â° c that melts during a 24h period
Answers: 1
Engineering, 04.07.2019 18:10, katelynn73
Atmospheric air has a temperature (dry bulb) of 80° f and a wet bulb temperature of 60° f when the barometric pressure is 14.696 psia. determine the specific humidity, grains/lb dry air. a. 11.4 c. 55.8 d. 22.5 b. 44.1
Answers: 1
Engineering, 04.07.2019 18:20, safiyabrowne7594
Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?
Answers: 3
A2.5m internal diameter double walled spherical tank is used to store iced water at 0â° c. each wall...
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