International Sugar Journal

Energy efficiency improvements with vertical shell and tube juice heaters at Millaquin Mill* [Full subscriber]

Abstract A new secondary juice heater station was installed at Millaquin Mill for the 2017 season to improve the process energy efficiency and provide surplus bagasse for operation of the refinery in the non-crush. A set of four vertical shell and tube heaters were installed for consecutive heating of secondary juice with V3, V2 and V1 vapours in three of the heaters with the fourth heater on cleaning or standby. The operation of the secondary juice heaters was monitored during the 2017 season. The measured overall heat transfer coefficients (OHTCs), fouling rate factors and pressure drops were compared with values…

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