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Economiser is the Energy improving device that helps to reduce the cost of operation by saving the fuel. The economizer in Boiler tends to make the system more energy efficient.

For the combustion process to take place in a gasoline engine, the minimum AFR is around 6:1 and the maximum can go up to 20:1.

Flue gases are taking away a good portion of heat, which can be extracted partially by fitting an economiser.

In order to generate steam on a constant basis, boiler should be continuously supplied with water, called as feed water.

The Kelvin?Planck statement (or the Heat Engine Statement) of the second law of thermodynamics states that it is impossible to devise a cyclically operating heat engine, the effect of which is to absorb energy in the form of heat from a single thermal reservoir and to deliver an equivalent amount of work.

A crosshead is a mechanism used as part of the slider-crank linkages of long reciprocating engines to eliminate sideways pressure on the piston. The crosshead enables the connecting rod to freely move outside the cylinder. It translate linear motion to angular oscillation.

Gear box transmits the engine torque to the wheels in different transmission ratios. Torque increase while reducing the speed of output shaft.

Earth wires are normally made of galvanised steels whereas fuse wires are normally made of silver

Lamps in houses are connected always in parallel.

Expansion in a turbine is an isentropic process, but in actual cases there may be slight increase due to irreversibilities (friction).

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