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Why economiser and air- preheaters are used in steam power plants ?

Question by Rahul Gohil On 23 March 2020, 10:08:25


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Answer by Rahul Gohil On 23 March 2020, 10:09:17

Economiser and air- pre heaters are such devices which recover the heat from the flue gases on their way to the chimney and raise the temperature of feed water and air supplied  for combustion respectively and thus improve the efficiency of steam plants.