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Q. Describe the term ‘Critical Insulation thickness'. What is its significance? Derive an expression for the critical insulation radius of a spherical system.
A bar of square cross-section connects two metallic structures. One structure is maintained at a temperature of 200o C and the other at 50o C. The bar is 20mm x 20mm in cross section and 100mm long and has a thermal conductivity of 60W/mK. The ambient air is at 20o C and heat transfer coefficient between the bar and the ambient is 10W/m2K. Derive an expression for the temperature distribution along the bar & calculate the steady state heat flow rate from the bar to the surrounding.
T ota l Energy: Total energy possessed by system is the sum of all types of stored energy. Thus it will be given by E total = PE + KE + U = mgh + 1/2mv 2 + U It is ex
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Superheate d Steam: When the dry saturated steam is heated further at constant pressure, the temperature of it rises up above the saturation temperature. This rise in tempera
working principle of land fill bio gas plant
What is the face cone. Difference between tooth face and face cone?
Evaluate force and moment: What force and moment is transmitted to supporting wall at A A force of 15 KN is transmitted to wall along with anticlockwise mome
Theore m of perpendicular axis It states that if I X X and I Y Y be the M.I. of plane section about the two mutually perpendicular axes meeting at a point. Th
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Find out the velocity of the chain: Figure shows a metal chain ABC where portion BC is of length 0.4 metres and is hanging vertically, & portion AB of length 0.8 metres rests
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