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An ideal cold air-standard Brayton cycle engine operates with air entering the compressor at 27 C. The pressure ratio is 6, and air leaves the combustion chamber at 1100 K. Determine the following:
i) The compressor work input (kJ/kg)
ii) The turbine work output (kJ/kg)
iii) The cycle thermal efficiency
iv) The cycle thermal efficiency if an ideal regenerator is employed
a load of lumber of weight w 25 kn is being raised by a mobile crane. knowing the tension is 25 kn in all portions of
12 lbm of superheated water vapor at 60psia and 500deg c in a piston cylinder device is cooled at constant pressure
a computer chip which contains 25 g of copper 55 g plastic cp 0.96 kjkg-k and 55 g of silicon cp 0.70 kjkg-k. the
Lawn mower engines normally have finned surfaces directly attached to the engine block, with no radiator, in order to achieve the required cooling. Why might the cooling strategies be different in these two applications?
a hot dog can be considered to be a cylinder 12 cm long and 2 cm in diameter whose properties are rho 980 kgm3 cp 3.9
Calculate the change in length of the component - calculate the shear strain in the circular section and the square section
Beam deflection at corner through centroid, Sometimes the term centroid throws me for a loop. So, how would I set this problem up?
Helium enters subsonically and flows isentropically through the converging-diverging duct. Compare the values of Ma, T/T0, and P/P0 for helium with those for air at several locations in the duct. Use 0.163 ≤ Ma ≤ 3.221.
the 10-kg mass a is moving at 5 ms when it is 1 m from the stsaionary 10 kg mass b. the coefficiient of kinetic
The separator produces 43,150 scf/d of 0.724 gravity gas, and the stock tank vents 7240 scf/d of 1.333 gravity gas. What is the formation volume factor of the oil? What is the solution gas-oil ratio? Which of the previous answers applies only at t..
You want to know if you should replace the existing machines, which has a Cpk of 1.0. You decide to determine the Cpk for the new machines and make a decision on that basis.
a gasoline engine receives air at 10 0c 100 kpa having compression ratio of 91 bynbspvolume. the heat addition by
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