Cigar

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The highly steam-efficient overseas cane factories almost universally undertake extensive flashing of vapour from condensates into the calandrias of evaporator vessels.

The condensates subjected to flashing include condensates from the calandrias of evaporators and pans and from the vapour chests of non-contact heaters.

The condensate management equipment is commonly referred to as a condensate cigar as the usual arrangement is a long horizontal vessel.

The vessel contains several compartments operating at different pressures.

The recovery of heat in the flashed vapour is primarily adopted in order to reduce the process steam consumption of the factory.

Modelling of the process stations at a factory has been undertaken to investigate the changes resulting from the implementation of extensive condensate flashing.

It is found that the flashing of condensate has numerous beneficial implications but one consequence is a reduction in the juice processing capacity of the evaporation set.

Close attention is also required to the condensate management system of the factory.

This paper describes the results of the investigations and the implications of adopting extensive condensate flashing on the process stations of factories.