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A hypersonic gun tunnel is used to generate short-duration, high-speed flows and typically consists of two cylindrical volumes separated by a diaphragm. One end of the tunnel (the driver end) is pumped to a high pressure, while the other end (the driven end) is evacuated to a low pressure. At a set pressure difference the diaphragm ruptures producing a high speed flow of gas that can be used to test a model at supersonic speeds. For a driver end of volume 0.781m3 containing nitrogen at 300 bar, 27°C, and an evacuated driven end of volume 11.9m3, determine the following. Assume that the tunnel operates adiabatically. a) The total mass of the gas, in kg, present in the system. b) The final temperature, in K, and the final pressure, in bar, of the gas after the diaphragm breaks and the system reaches equilibrium.
A 90N force is applied to control rod AB as shown. Knowing the length of the rod is 225mm, determine the moment of the force about point B by resolving the force into components along AB and in direction perpendicular to AB?
during the packaging process a can of soda of mass 0.4 kg moves down a surface inclined 20 degrees relative to the
There is a membrane made of an isotropic material whose elastic modulus and Poisson's ratio is E and v, respectively. When this membrane is elongated along x-direction with no lateral deformation in y-direction, the apparent elastic modulus (E') dete..
a steam power plant operates on a simple ideal rankine cycle between the pressure limits of 3mpa and 50kpa. the
Determine the radius of the crank R and the speed n of a slider crank mechanism, used in a shaker table. It is required that the average speed of the table is 5 m/s, and the maximum absolute acceleration is 3000m/s^2. Assume ratio R/L=0.2
a gaseous mixture consisting of 0.75 kmol of hydrogen and 0.25 kmol of nitrogen occupies 0.085 m3 at 25degreec
trees at the bottom of a lake are approximated as a truncated cone with a base diameter of 6 ft a top diameter of 1 ft
Calculate the Reynolds number, the Nusselt number, the convective heat transfer coecient (h), and the total heat transfer (Q_dot) for the following: 1g/s of water owing through a 2mm-diameter circular tube, 2cm long, with wall heat flux q'' = 100 W/c..
5000 kghr of water will be heated from 20o c to35o c by hot water at 140oc a 15o c hot water temperature drop
a regenerative brayton cycle has two step isentropic compression with cooling. air enters the first compression at 300
25 Superheated steam at 20 MPa, 560 degree C enters the turbine of a vapor power plant. The pressure at the exit of the turbine is 0.5 bar, and liquid leaves the condenser at 0.4 bar at 75 degree C.
air with a dry bulb temperature of 22c and a relative humidity of 60 percent is contained in a
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