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A Brayton cycle uses air and produces a net work of 14000 Btu/s with an inlet state of 60°F, 14.7 psi and a compression ratio of 16. The heat added in the combustion process is 400 Btu/lbm. If the thermal efficiency is 0.547 Determine: Using variable specific heat method 1) The highest temperature in the cycle 2) The mass flow rate of the air
1. with reference to basic constructional features contrast the methods of compression employed by positive
Determine the maximum speed at which the car with mass can pass over the top point A of the vertical curved road and still maintain contact with the road.
A dockworker applies a constant horizontal force of 71.0 to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves a distance 11.5 in a time 5.00 . what is the mass of the ice block?
hot water is pumped through a plate heat exchanger. the hot water side of the heat exchanger consists of 16 plates of
Determine (a) the horizontal line along which the shearing stress is a maximum, (b) the constant k in the following expression for the maximum shearing stress.
consider two identical rooms one room has a refrigerator in it the other does not. all the doors and windows in each
calculate the maximum permissible crack size in acenter cracked panel subjected to a unifrom stress of 20 ksi. the toughness is 50 ksi"in, the yield stress is 60 ksi, w=12 inches
a standard steel specimen of 13 mm diameter elongated 22 mm when it was subjected to a tensile force of 29.5 kn if the
determine the design stress for bolts in a cylinder cover where the load is fluctuating due to gasnbsppressure. the
a storage tank holds 75 cubic meters of a gas at 28deg c and a pressure of 130kpa. the gas appears to have a molecular
What is the concentration of FeCl3 in a solution prepared by dissolving 20.0 g of FeCl3 in enough water to make 275 mL of solution?
1. figure shows a pneumatic circuit in which four actuators are controlled.a state the sequence in which the cylinders
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