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Air enters a gas turbine with two stages of compression and two stages of expansion at 100 kPa and 17 degrees Celcius. This system uses a regenerator as well as reheating and intercooling. The pressure ratio across each compressor is 4 ; 300 kJ/kg of heat are added to the air in each combustion chamber; and the regenerator operates perfectly while increasing the temperature of the cold air by 20 degrees Celcius. Determine this system's thermal efficiency. Assume isentropic operations for all compressor and the turbine stages and use constant specific heats at room temperature.
find: a) the pitch diameter of the pinion. b) the pitch diameter of the gear. c) the output torque of the gear. d) the minimum length of the key used to attach the gear?
An Industrial water shutoff valve is designed to operate with 40lbs of force and will encounter 150lbs of resistance force applied to a 2in diameter axle. What is the required actual mechanical advantage of the system?
consider a small simple rankine power cycle which produces 600kw power from an electric generator with an efficiency of
in a particular location the horizontal component of the earths magnetic field has a magnitude of 2.00 10-5 t. an
a. given that the surface energy mass density and molar mass of ag are respective 1140 ergcm2 10.5 gcm3 and 108 gmolb.
For this same component and alloy, compute the stress level at which fracture will occur for a critical internal crack length of 6.0mm.
assume an average temperature of human to be 300k. determine the maximum spectral emission power of the human and the
problem i. steam at 5.0 mpa 500 degrees c enters an insulated turbine operating at steady state with a mass flow rate
consider an isentropic expansion process in a piston cylinder device where air is expanded from 1mpa and 800 k to 0.1
the 3m company removes benzene from synthetic resin-based sandpaper by passing the sandpaper product through a dryer in
for each of the situations below an equation is proposed as a model to relate an independent variable to a dependent
the block is subjected to a compressive force of 2kn. determine the average normal and average shear stress developed
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