EconomiserGreen's Economiser Steam Engine

Beside the left hand engine is the door to the rear of the boiler house, where the Green's economiser is situated. The economiser consists of 144 tubes suspended in the main flue, and a steam driven mechanism for scraping soot off the tubes. Water from the feed pumps passes through the tubes and is re-heated by the hot flue gases before entering the boilers.

Using the economiser to re-heat the feed water would save approximately 5 tons of coal a week.

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