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Thermodinamics
In an experiment, a 0.050m3 bomb is initially evacuated.It is then filled with air supplied from a reservoir at 1MPa, through a long steel pipe, in which a solenoid valve is placed. The valve is open rapidly and quickly shut off when pressure in the bomb reaches 0.6MPa, The steel pipe is long enough so that, close to reaching the bomb, the temperature of the air in the pipe is ambient (300K).
Assuming that the bomb is perfectly insulated what is the temperature of the air in the bomb at the end of filling process? Assume air is an ideal gas with constant specific heats in a ratio Cp/Cv = γ = 1.4 and constant R= 287 J/kg K.
Carbon fibre reinforced polymers (CFRP have been used extensively in aerospace applications due to their excellent strength to weight and stiffness to weight properties.
To determine the heat transfer characteristics of a cylinder under cross flow conditions when the cylinder is isolated.
Advanced Stress Analysis
Find the approximate location of the laminar turbulent transition - what is the net heat removed by the air around the rod?
What will the ratio of the angle of twist be to that of the hollow shaft if the maximum shear stress in the material of 75 N / mm ^2 and what is the ratio of actual permissible shear stress?
Calculate the value of forces P and Q for each test using the method of sections technique.
Draw the Mohr's circle for this stress state, deterrnine the principal stresses and the angle of the principal direction to the x-axis and determine the maximum shear stress.
A pump station has been designed to lift water out of a 6 metre deep pit (vented to atmosphere) via a centrifigual pump mounted at ground level. Calculate the Net Positive Suction Head (NPSH) for the system ?
Design of absorption column and the cooler. Process design of other units should be completed along with pipe sizes.
What load P allow can be supported at the midpoint of the bar if the yield stress in the steel wires is 220 MPa and in the aluminium wire is 80 MPa? A saftey factor of n = 2 is needed.
Determine the average luminous exitance of the opaque interior surfaces of the room - what is the reflected component at this point?
Given an aerodynamic body, you have learned in Aerodynamics and Flight Mechanics how to apply the numerical Source Panel Method to this body to determine the velocity and pressure profiles along the surface of the body.
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