Engineering, 02.11.2019 05:31 pookie879
An adiabatic air compressor is to be powered by a direct coupled adiabatic steam turbine that is also driving a generator. steam enters the turbine at 12.5 mpa and 500-degree c at a rate of 25 kg/s and exits at 10 kpa and a quality (or dryness factor) of 0.92. air enters the compressor at 98 kpa and 295 k at a rate of 10 kg/s and exits at 1 mpa and 620 k. determine the net power delivered to the generator by the turbine.
Answers: 2
Engineering, 04.07.2019 03:10
What precautions should you take to prevent injuries when dealing with heavy loads?
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Engineering, 04.07.2019 18:10
Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.
Answers: 3
Engineering, 04.07.2019 18:10
Apipe with an outside diameter of 15 cm is exposed to an ambient air and surrounding temperature of -20°c. the pipe has an outer surface temperature of 65°c and an emissivity of 0.85. if the rate of heat loss from the pipe surface is 0.95 kw per meter of length, the external convective heat transfer coefficient (h) is: (a) 12.5 w/m"k (b) 18.6 w/mk (c) 23.7 w/mk (d) 27.9 w/mk (e) 33.5 w/mk
Answers: 1
Engineering, 04.07.2019 18:10
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
An adiabatic air compressor is to be powered by a direct coupled adiabatic steam turbine that is als...
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