MODIFICATION TO THE EVAPORATOR STATION IN PREPARATION FOR A CO-GENERATION FACTORY AT BROADWATER MILL

摘要

Broadwater Sugar Mill commissioned a 4000 m~2 SRI-designed Roberts evaporator forrnthe 2002 crush. The evaporator is the crucial first stage of a cogeneration plant, whichrnwill comprise a high-pressure boiler and turbo-alternator producing renewable electricalrnenergy for sale. To achieve this, steam consumption by all pr℃ess plant will need to bernminimised and condensate quality for boiler feed water will need to be guaranteed. Thisrnpaper describes the installation, control system and operating performance of the newrnSRI Roberts evaporator and the ass℃iated arrangement of vapour bleeding to pans andrnheaters used to optimise the steam efficiency in the 2002 season.