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Boiler feedwater If condensate is not used as feedwater, the boiler must be continually topped up with cold water, which is costly in terms of both water and energy. Cold feedwater must be heated. In contrast, condensate is already hot, so not only does it reduce the need for (and cost of) fresh water and treatment chemicals, it also requires much less energy than cold make-up water does to be ready for use. Indeed, re- using condensate in this way can reduce boiler fuel costs by 10–20%. Or, to look at things differently, every 6°C boost in the temperature of the feedwater knocks 1% off a typical boiler’s HQHUJ\XVDJH5HGXFLQJERLOHUIXHOGHPDQGKDVRWKHU EHQH¿WVWRR,WFDQEULQJGRZQHPLVVLRQVRIFDUERQGLR[LGH nitrogen oxides and sulphur oxides, which makes the entire process more environmentally friendly.
The uses of FRQGHQVDWH “ ” BETTER STILL, GOOD CONDENSATE MANAGEMENT IS COST-EFFECTIVE AND GENERALLY STRAIGHT- FORWARD TO ACHIEVE, AS WE SHALL SEE.
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