IMPROVEMENT OF ENERGY EFFICIENCY IN SUGAR PROCESSING AT LANKA SUGAR INDUSTRIES LIMITED, PELWATTE, SRI LANKA

University essay from KTH/Energiteknik

Author: Lasantha Navarathna Mudiyanselage; [2018]

Keywords: ;

Abstract: One of the drawbacks of the process house in a sugar factory is the potential for exhaust steam pressure drop during operation, leading to temporary loss of production and concomitant energy waste. Identified exhaust steam demand for existing exhaust steam distribution system is larger than exhaust steam generation, therefore there is potential to minimize or avoid such issues. This investigation examines process house steam systems via in-field measurements at a sugar factory located in Sri Lanka. Five options for modifying the exhaust steam distribution network were considered, with the most favorable one implemented in year 2013. Considering operational data this year as compared with the previous year, measures to improve steam utilization yielded a 3.5% increase in crushing rate and nearly eliminated mill stoppage due to juice accumulation all while maintaining steam parameters at nominal levels.

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