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An air standard Brayton closed cycle receives air at 1 atm and 298 K. The upper temperature and pressure limits are 5 atm and 1100 K. a) Determine the cycle thermal efficiency for the internally reversible cycle. b) Determine the cycle thermal efficiency for the cycle when the compressor and turbine isentropic efficiency are 0.9. c) Compare the cycle efficiency with a Carnot engine operating between the same two limits.
level process control labbased on the following graphs you should write a discussion report on1.determination of
the old rigid tank problem a tank has a volume of 600 gallons and holds 300 lbm of water at 40 psig pressure. what is
the figure below shows the geometrical stress concentration factor k for a flat bar loaded in uniaxial tension. the
determine a) the angular accelerations of gears B and C, b) the accelerations of the points on gears B and C which are in contact when t = 0.5 s.
the acceleration due to gravity at sea level is g 9.81 ms2 . what is the persons weight at sea level? the acceleration
Convert the composition of the following alloy from atom percent to weight percent (a) 44.8 at% of silver, (b) 46.3 at% of gold, and (c) 8.9 at% of Cu. Assume that the atomic weights for silver, gold and copper are, respectively, 107.87, 196.97 an..
The main elevator A of the CN Tower in Toronto rises about 349 m and for most of its run has a constant speed of 22 km/h. Assume that both the acceleration and deceleration have a constant magnitude of g/3 and determine the time duration t of the ..
a large plate contains a central crack of length 2 mm and is subjected to a cyclic stress normal to the crack which
Refrigerant R-134a is compressed steadily and adiabatically in a reversible compressor. The volume flow rate entering the compressor is 800 ft3/min.
Aeroplane Dynamics, Determine the steady thrust that would enable a 200-tonne airliner to reach its take-off speed (75 m sâ?'1), from rest, in 30 s
A magnetic pickup is used to detect the shaft speed of a turbocharger. A standard hexagonal nut is used to excite the pickup. If the shaft is turning at 50,000 rpm, how many positive impulses will be counted per second?
Roll out a sheet of blu-tack, punch out a disk with your specified radius, assemble a flywheel for testing on an electric drill and determine the approximate critical rotation speed in rpm - SEM212 T1 2014
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