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A low quality-low pressure flow of saturated liquid-vapor mixture of water enters an insulated flash tank located in a boiler room. Saturated liquid leaves the flash tank through a 1?4" tube at the bottom of the tank, as shown in the picture, and is pumped to the boiler. The saturated vapor, meanwhile, is extracted from the top of the tank through a 2" tube and redirected to low pressure steam processes. For a steady flow of 20 lbm/h of steam at 7% quality entering the tank at 14.7 psia and leaving the tank at the same pressure, determine: a) the mass flow rate of saturated liquid and saturated vapor leaving the tank in lbm/h; b) the velocity of saturated liquid and saturated vapor flow leaving the tank in ft/s; and c) the rate of energy transport Btu/h of the saturated liquid and saturated vapor leaving the tank. Neglect potential energy effects.
Steam at 100 psia, 500oF is throttled to 20 psia. Changes in kinetic energy are negligible for this process. Determine the final temperature and specific volume of the steam.
Compare the time and cost of using the following three alternative methods for casting the concrete for the wall: 1) direct chute 2) pumped 3) crane and bucket.
(a) The temperature profile as a function of radial position
what is an exergy factor? 8 what is a pinch point and what is it used for? 9 what does the compressor in figure 2 do?
a spherical copper shell of inside radius 5cm and wall thickness 1cm loses heat to the surrounding air which is
calculate: a) the overall train value. b) the output rational speed at shaft 5. c) the output torque at shaft 5. Relevant gear data is= NA= 17, NB= 36, NC= 19, ND= 41, worm E = double lead, worm G = triple lead, NH= 37?
explain the factor, which inhibit the use of a very high resolution and a large number of colors for display in the case of raster scanning display devices.
Write the electron configuration of the following ions by using spdf notation.
consider a sample of pure nickel in the shape of a coin. the area of the flat face is 1 cm2 and the initial thickness
if a batch formula for 1950 kg of window glass consists of 200 kg of na2co3 1500 kg sio2 and an unknown amount of
these include micrel mm5450 mic5821 allegro a6276ea ucn5832a and texas instruments tpic6c595. these are all serial
a building has a total heating load of 200000 btuhr. the sensible heat factor for the space is 0.8 and the space is to
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