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Water Pre Heater

Water Pre Heater

In case of boiler system, economizer or Water Preheater (WPH) can be provided to utilize the flue gas heat for pre-heating the boiler feed water. Consequently, there is a corresponding reduction in the fuel requirements of the boiler.

For every 220 C reduction in flue gas temperature by passing through an economiser or a pre-heater, there is 1% saving of fuel in the boiler. In other words, for every 60 C rise in feed water temperature through an economiser or WPH, there is 1% saving of fuel in the boiler.