Construction of 113 t/h Boiler for Appleton Estate, Jamaica |  |
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Appleton is where the famous Appleton rum comes from so the traditional sugar factory steam balance is distorted by the extra steam demand of the distillery. J Wray and Nephew, the owners, therefore wanted a new, more efficient boiler to replace their existing units. As the one boiler was to replace all of the others it had to be a reliable unit. There was also a timing issue with respect to upgrading HP steam users so the boiler had to be designed for a lower initial steam pressure.

The principle characteristics of the boiler are:
Evaporation | 113 t/h | Feedwater Temperature | 105 °C |
Steam Pressure | 3 620 kPa | Bagasse Moisture | 48 % |
Steam Temperature | 399 °C | Boiler Efficiency on GCV | 65 % |
The initial steam pressure is 3 100 kPa.
It can be seen that the boiler is top supported. This is because Appleton is in a seismic region and it is more economic to select a top supported boiler for such requirements.
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