A Comparison of Various Technological Options for Improving Energy and Water Use Efficiency in a Traditional Sugar Mill

Birru, Eyerusalem; Erlich, Catharina; Moya, Idalberto Herrera; Feychting, Sofia; Vitez, Marina; Abdulhadi, Emma Bednarcik; Larsson, Aron; Onoszko, Emanuel; Hallersbo, Mattias; Weilenmann, Louise; Puskoriute, Laura

doi:10.3390/su8121227

Cited by 7 publications

(4 citation statements)

References 4 publications

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“…The factory has poor steam efficiency averaging 580 tons per ton of sugarcane milled or 58% of cane milled which implies wasteful use of bagasse energy resources. Efficient sugar factories have average steam consumption of about 40% cane milled in addition to efficient steam to electricity conversion systems with less internal or process use hence excess generation to support export of power to the electricity grid [11,88]. More boiler fuel feedstock can be by collection and transport, of cane trash and tops from the field to the sugar factory for use in steam and power generation in higher steam pressure and temperature [1] although this implies more costs in transport and handling of extra biomass but will lead to more steam and power generation [13,88].…”

Section: Resultsmentioning

confidence: 99%

Bagasse Electricity Potential of Conventional Sugarcane Factories

Kabeyi

Olanrewaju

2023

Journal of Energy

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Sugar industries have huge potential to contribute to the sustainable energy transition through electricity generation and production of biofuels. Sugar-producing countries generate huge volumes of sugarcane bagasse as a byproduct of sugarcane production. In this study, the performance of an operating traditional sugar factory is analyzed for electricity generation and export potential. The study presents characteristics and energy potential of modern and traditional sugar factories. The challenges facing a traditional sugar mill are inefficient boilers, less efficient and back pressure steam turbines, and wasteful and inefficient use of steam turbine drives as prime movers instead of modern electric drives for the mills and cane knives. Others are the use of inefficient and energy intensive cane mill rollers instead of the diffusers which have low energy requirements. It was demonstrated that the cogeneration potential of sugar factory is quite significant but currently underutilized. Sugar factories can make significant contribution towards mitigation of greenhouse gas emission mitigation through supply of green electricity to the public grid. The study showed that the factory uses very old and inefficient boilers aged over 39 years which contributes to poor performance and low electricity generation capacity. Modernization is required to increase the generation and electricity export capacity through investment in new and modern high-pressure boilers, replacement of inefficient back pressure boilers (BPSB) with more efficient condensing extraction turbines (CEST), and reduction of factory steam consumption by electrification of mills and cane knife turbine drives among other measures. This study showed that the 3,000 TCD factory can invest in a 15 MW power plant based on current average factory performance indicators and more if the throughput and overall performance is close to design parameters.

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Section: Resultsmentioning

confidence: 99%

Bagasse Electricity Potential of Conventional Sugarcane Factories

Kabeyi

Olanrewaju

2023

Journal of Energy

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“…Imbibition , which recommended to use the spraying water in the mills to help the mills increase the extraction of the remaining sugar solution on bagasse after the first mills, provided that it does not exceed the recommended amounts so as not to float the bagasse layer , which reduces the extraction rate of the mills [7]. Adjust the correct setting and clearance in mills helps to increase the pressure on the fibre layer / bagasse, which helps to increase the extraction rate.…”

Section: Extraction Of the Millsmentioning

confidence: 99%

Improving the Efficiency of Extraction of Sugar Cane Mills Using Rollers with Compound Triple Pitch

Helal

Mustafa²,

Abdelrhman

et al. 2020

Egyptian Sugar Journal

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Sugar cane mills are the equipment used in extracting sugar solution from sugar cane plant. The effect of the roller pitch has been studied as one of the constituent parts of the mills by modifying the universal pitch to the triple pitch compound and experimenting with extracting different sugar cane weights ( total nine samples ) . On both mills , universal and triple compound pitch on the mills rollers under the same conditions and control of the correct setting taking into account with the uniformity of samples and it was recorded the results were positive by increasing the weight of the squeezed sugar cane in the three -pitch compound rollers mills of extracted juice which increasing percentage up to 3.02 % in contrast to the extraction of single pitch rollers mills which was positive only on low weights.

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“…The target of self-sufficiency is impossible to attain using normal production, demonstrating the need to build new sugar mills [28]. Technology that improves the energy and water use efficiency in traditional sugar mills, as noted by Birru et al [29], can be implemented. (2) Development of downstream industry.…”

Section: Increasing Sugarcane Productionmentioning

confidence: 99%

Increasing Sugar Production in Indonesia through Land Suitability Analysis and Sugar Mill Restructuring

Sulaiman

Sulaeman

Mustikasari

et al. 2019

Land

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Indonesia is the fourth most populated country in the world with an annual population growth rate of 1.3%. This growth is accompanied by an increase in sugar consumption, which is occurring at an annual rate of 4.3%. The huge demand for sugar has created a large gap between sugar production and demand. Indonesia became the world’s largest sugar importer in 2017–2018. Sugarcane farmers have an important role in sugar production. They are facing problems with declining sugarcane productivity and arable land decreasing. We aimed to understand the sugar production issue in Indonesia and to examine options to increase sugar production. To achieve these aims, a framework consisting of four steps was developed: Analysis of the current situation; problems identification; resolution; and delivering programs; and strategies. The main problems in sugar production in Indonesia were identified, including a stagnation in sugarcane harvest area, low sugarcane productivity, lack of good varieties, and inefficient sugar mills. Based on the identified problems, strategies to increase production were created. Two approaches need to be executed simultaneously: An increase in sugarcane planting area, and an increase in productivity and sugar yield. The first approach in increasing sugar production is the exploration of new sugarcane planting areas outside of Java both on existing agricultural land and in new areas. A land suitability analysis for the whole country was conducted based on a semi-detailed soil map. The main priority for development was the existing agricultural area via an integration system or existing crop exchange. The second approach is restructuring sugar factories through the revitalization of existing sugar mills and investment in the construction of new mills. The challenges that need to be addressed include land availability, provision of high-yielding varieties, and improving the efficiency of sugar mills. General strategies and medium-term programs are presented and discussed. These efforts, if well-executed, will boost Indonesia’s sugar production to meet its domestic demand by 2025, achieving competitiveness in the world market by 2045.

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A Comparison of Various Technological Options for Improving Energy and Water Use Efficiency in a Traditional Sugar Mill

Cited by 7 publications

References 4 publications

Bagasse Electricity Potential of Conventional Sugarcane Factories

Bagasse Electricity Potential of Conventional Sugarcane Factories

Improving the Efficiency of Extraction of Sugar Cane Mills Using Rollers with Compound Triple Pitch

Increasing Sugar Production in Indonesia through Land Suitability Analysis and Sugar Mill Restructuring

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