Engineering, 10.06.2020 20:57, iajiborode8944
Consider a square pan with a polishedcopper surface that is filled with hot water. The bottom of the pan, which is 0.5 m long, is exposed to air at pressure of 1 atm and a temperature of 306.15 K (T[infinity]) with a velocity of 10 m/s (u[infinity]). The lateral surfaces of the electrical heater are thermallyinsulated. If the temperature of the pan (Ts) needs to be maintained at 393.15 K, what is the electrical heating power required to boil water in this pan with these conditions (in W)? Hint: Rohsenow Correlation is valid, and for the polished copper, you can use Cs, fas 0.0128 and nas 1. You can also assume the heater has a uniform temperature.
Answers: 3
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Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned
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Aplate clutch has a single pair of mating friction surfaces 250-mm od by 175-mm id. the mean value of the coefficient of friction is 0.30, and the actuating force is 4 kn. a) find the maximum pressure and the torque capacity using the uniform-wear model. b) find the maximum pressure and the torque capacity using the uniform-pressure model.
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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
Consider a square pan with a polishedcopper surface that is filled with hot water. The bottom of the...
Mathematics, 15.04.2021 23:20