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Carnot Theorem:
No heat engine operating in cycle between the two given thermal reservoir, having fixed temperature can be more efficient than reversible engine operating between same thermal reservoir.
* Thermal efficiency η th = Work out/Heat supplied
* Thermal efficiency of a reversible engine ( ηrev)
ηrev= (T1 - T2)/T1 ;
* No engine can be much efficient than reversible carnot engine that is ηrev > ηth
Carnot Efficiency
= (Heat added - Heat rejected) / Heat added = [mRT2lnV2/V1 - mRT4lnV3/V4]/ mRT2lnV2/V1
= 1- T1/T2
Determine the frictional resistance: (i) A train having weight 400 kN is running up an inclined path of 1 in 100 at a steady speed of 54 km/hour. If the frictional resistance
Dimension Text Edit Command The Home option returns dimensions to their home position. The New option displays the Multiline Text
what is the advantage of fan
Q. What is Extrusion defects? • Surface cracking - When the surface of an extrusion splits. This is often caused by the extrusion temperature, friction, or speed being too high
Connecte d Rod: It is attached to piston at its small end by means of gudgeon pin. The big end bearing is connected to crank pin. It is made up of forged steel.
W rite down the different assumptions in simple theory of bending. The assumptions which are made in theory of simple bending are stated below:
Q. Describe Polythionic Acid Corrosion? Although it is not typically thought of as high temperature corrosion, polythionic acid stress corrosion cracking occurs in areas where
impartance of moulding sand
a) Describe main advantages and disadvantages of CI engine as compared to SI engine. b) With the help of a neat diagram, describe the working of a four stroke petrol engine.
Does this college offer courses in the field of mechanicalthermodynamics?
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