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(a) Briefly explain the various efficiency terms associated with an engine.
(b) A four cylinder engine running at 1200 rpm delivers 20 KW. The average torque when one cylinder was cut is 11oNM. Evaluate the indicated thermal efficiency if the calorific value of the fuel is 43 MJ/Kg and the engine uses 360 gram of gasoline per Kwh.
Concept of continuum - thermodynamics: Sol: Even the simplification of matter into molecules, atoms, electrons, etc. is too complex a picture for many problems of thermodyna
Requiremen t of Temperature Scale: The temperature scale on which temperature of the system can be read is required to assign the numerical values to the thermal state of the
derivation for varing shear stress for thin circular tubes.
why entropy always tends to increase?
this is a problem for designing wrecking crane. there are 2 scenarios, one is when ball is held and one where its at maximum. i calculated the loads and now need to find the follow
Illustrate types of nuclear reactors with diagrams? a) Give advantages and disadvantages of nuclear power plant? b) Briefly explain how geothermal powerplant operate with fig
A helical compression spring is used to take the shock. The initial compression of the spring is 30 mm and it is further compressed by 50 mm while absorbing the shock. The spring i
A counter flow heat exchanger is used to cool 2000kg/hr of oil(Cp= 2.5 KJ/Kg K) from 105 o C to 30 o C by the use of water entering at 15 o C. If the overall heat transfer coeff
Angle of twist is zero on the shaft: A shaft 10 m long and 100 mm diameter during its length is fixed at the ends and is subjected to two opposite torques of 8 kN-m and 10 kN-
Explain the principle of virtual work
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