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NUCLEAR APPLICATIONS OF ELECTRON BEAM WELDING
Electron beam has been applied to the fabrication of fuel elements for pressurised water reactors and the distinct advantages are:Vacuum environment prevents contamination of the weld joint and ensures that the weld metal possesses good corrosion resistance & mechanical properties. High concentration of weld heat, the concentration of thermal energy is an important advantage of EBW of plate t ype fuel element s. High concentration of heat reduces shrinkage and thermal distortion for example, in fuel elements welding, total transverse shrinkage weld seam is only 0:02 mm to 0:04 mm for electron beam welds. Complex welded structures of molybdenum are being EB welded.
Differentiate Reaction turbine and Impulse turbine (steam turbines) (b) In a De Laval turbine, steam issue from the nozzle with a velocity of 850 m/s. The nozzle angle is 20 o C
Describe the key terms i. Write two differences between boiler and turbine. ii. Compare the rankine cycle with carnot cycle in terms of efficiency and work ratio iii.
What is elements with increasing dimensions?
Heat Dissipation : During clutch application, large amount of heat is generated. The rubbing surfaces should have sufficient area and mass to absorb the generated heat. The proper
Slab hanging: Three similar uniform slabs each having length '2 a ' are resting on edge of table as shown in the figure given below. If each slab is overhung by the maximum
Calculate the Machining Time and the Material Removal Rate A through hole of 40 mm diameter and 50 mm depth is to be drilled in a mild steel component. The cutting speed can b
Q. Pressure Relief Valve Application? A general comparison of operational characteristics is given for the different types of pressure relief valves in common industrial use.
Define stress: Sol.: When body is acted upon by load or external force, it undergoes deformation (that is, change in shape or dimension) which increases gradually. At the ti
udl over uvl
Calculate the angular acceleration of the wheel: A locomotive wheel of radius r = 0.8 m is illustrated in Figure. At the given instant, the speed of the locomotive is 1.6 m/se
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