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    ershakeb's Avatar
    ershakeb Posts: 3, Reputation: 1
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    #1

    Jan 7, 2009, 11:53 PM
    Airpreheater and economiser
    What is difference between airpreheater and economiser
    MANJEET THAKUR's Avatar
    MANJEET THAKUR Posts: 1, Reputation: 1
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    #2

    Jan 9, 2009, 11:54 PM

    Air pre hetre is supply the heat to air and in ecomomiser heat absorb by the feed water.
    MarkwithaK's Avatar
    MarkwithaK Posts: 955, Reputation: 107
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    #3

    Jan 10, 2009, 12:24 AM
    An economizer system simply opens/closes a set of shutters to bring in cooler outside air when the outside ambient temperature is below the thermostat set point. It's kind of like free air conditioning :D.
    ashish_sinha's Avatar
    ashish_sinha Posts: 20, Reputation: 1
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    #4

    Jan 19, 2009, 02:09 PM

    Air pre hetre is supply the heat to air which is goiing to furnace for the combustion of fuel,,
    Economiser utilises the heat from hot flue gases(exhaust gases) to heat the temperature of feed water,,
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