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State the location and function of i) Economizer ii) Feed water heater.

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(i) Economizer:- 

Location: - It is placed in the path of flue gases in between the exit from the furnace and the chimney. OR In The way of feed water before boiler.

Function: - The function of economizer is to increase the temperature of feed water, by absorbing heat from exhausted hot flue gases.

ii) Feed water heater:

Location: - It is placed in between the condenser and the economizer. OR In The way of condensate before economizer.

Function: - Its function is to increase the temperature of feed water by using blade steam.

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