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A reciprocating compressor has been selected to compress 0.085 m3/s of 25oC methane gas from 100 to 6200 kPa. Assuming that the heat capacity remains constant at 2433 J/(kg?K) over the temperature range of compression and that the ratio of C p/C v remains constant at 1.31. How many stages of compression should be used if the compression ratio is smaller or equal to 5. What is the power requirement if the compressor exhibits an efficiency of 80 percent? What is the exit temperature of the gas at the exit from the first stage? If the temperature of the cooling water can only increase by 15oC, how much water is required for the intercoolers and after cooler to ensure that the compressed gas from each stage after cooling is again returned to 25oC?
two flows of h2o one of which is saturated vapor at .6 mpa and the other of which is at .6 mpa 600 deg c mix
water is circulating through a closed system of pipes in a two floor apartment. on the first floor the water has a
air enters an insulated diffuser operating at steady state with a pressure of 105 nm2 and a temperature of 57 degrees
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a thin circular cylindrical shell subjected to internal pressure p isnbspsimultaneously compressed by an axial load p
Refrigerant 22 enters an insulated compressor operating at steady state as saturated vapor at - 16 C with a mass flow rate of 1.5 kg/s. Refrigerant exits at 7 bar, 70 C. Changes in KE and PE from inlet to exit can be ignored. Determine: (a) the volum..
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air is compressed adiabatically from 14.7 psia 70 to 58.8 psia and 76 btulbm of work is required. neglecting changes
Liquid oxygen (LOX) is being shipped through interstellar space in a spherical tank, constructed of several layers of material. The tank has an inner diameter of 5m, and the LOX is contained in a 15cm-thick shell of polycrystalline fused silicon diox..
a 50 cm diameter 100 cm high cylindrical tank is partially filled with 50 cm high liquid with density 870 kgm3. the
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