Answer / deep chand bharti

economiser is an accessory which is used to use the exhaust heat to heat the input water in the boiler. it increase the boiler efficiency and thats why why economy, so it is called economiser

Answer / ravikumar bp

econoimiser is an acessaries of Boiler to improve the
boiler efficiency

Answer / hardik085gmdc

As the name indicate that economizer is a economical boiler part which taken heat form the second pass of the boiler it is located at bottom of second pass which give sensible heat to water so load of evaporated is decreased and fuel is also decreased.....

Answer / ravikumar

Feed Water Preheating using Economiser.

For an older shell boiler, with a flue gas exit
temperature of 260oC, an economizer could be used to reduce
it to 200oC, Increase in overall thermal efficiency would
be in the order of 3%.
Condensing economizer(N.Gas) Flue gas reduction up to 65oC.
6oC raise in feed water temperature, by
economiser/condensate recovery, corresponds to a 1% saving
in fuel consumption

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