Engineering, 28.11.2019 00:31 emely1139
The cooling water from the condenser of a power plant enters a wet cooling tower at 40c at a rate of 90 kg/s. the water is cooled to 25c in the cooling tower by air that enters the tower at 1 atm, 23c and 60% relative humidity and leaves as saturated at 32c. neglecting the power input to the fan, determine (a) the volume flow rate of air into the cooling tower (b) the mass flow rate of the required make-up water.
Answers: 1
Engineering, 03.07.2019 14:10
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.
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Engineering, 04.07.2019 18:10
Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.
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Acertain flow of air (at stp) has a velocity distribution given by v i (in ft/s). if this flow is going through a 4 ft square area in the yz-plane (centered at the origin), what is the mass flow rate (in lbm/s)?
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