Optimization of cogeneration capacity by adding crop residues to bagasse in typical Peruvian sugar industry
DOI:
https://doi.org/10.21754/tecnia.v28i2.348Keywords:
sugar industry, optimization, sugarcane harvest waste, sugarcane bagasse, cogenerationAbstract
In this work, an energetic evaluation of appropriate mixture of cane harvest waste / sugarcane bagasse was carried out to improve the cogeneration capacity of both electricity and steam for the sugar production process in a typical Peruvian sugar industry. Peru has a tradition in the sugar industry characterized by its high sugarcane plantation productivity; However, the problem that persists to the present is the poor form of cane harvest (pre-burned cane in the field) and obsolescence technology used in cogeneration process.
The methodology begins with the mechanized harvesting in pilot area of cane plantation, followed by preparation and drying processes of harvest residues. Samples of waste are taken to laboratory for physicochemical and energetic characterization at different moisture conditions, obtaining calorific value and elemental content values. The appropriate waste / bagasse mixture that feeds the boiler was selected to proceed with the energy tests of Cogeneration Plant.
As result, for an optimized fuel mixture, crop residues / bagasse in a volumetric ratio 1/4, the increase in steam production is achieved comparatively to combustion of bagasse alone. In electricity generated represents an increase from 13 to 18 MW, an increase in cogeneration efficiency of 22.5% and a reduction in cogeneration cost of 19%.
In this work, an energetic evaluation of appropriate mixture of cane harvest waste / sugarcane bagasse was carried out to improve the cogeneration capacity of both electricity and steam for the sugar production process in a typical Peruvian sugar industry. Peru has a tradition in the sugar industry characterized by its high sugarcane plantation productivity; However, the problem that persists to the present is the poor form of cane harvest (pre-burned cane in the field) and obsolescence technology used in cogeneration process.
The methodology begins with the mechanized harvesting in pilot area of cane plantation, followed by preparation and drying processes of harvest residues. Samples of waste are taken to laboratory for physicochemical and energetic characterization at different moisture conditions, obtaining calorific value and elemental content values. The appropriate waste / bagasse mixture that feeds the boiler was selected to proceed with the energy tests of Cogeneration Plant.
As result, for an optimized fuel mixture, crop residues / bagasse in a volumetric ratio 1/4, the increase in steam production is achieved comparatively to combustion of bagasse alone. In electricity generated represents an increase from 13 to 18 MW, an increase in cogeneration efficiency of 22.5% and a reduction in cogeneration cost of 19%.
Downloads
References
[1]Gonzales Salome, Castillo Abraham, Solís Joel, Análisis energético de la adición de residuos de cosecha al bagazo de caña de azúcar para la mejora del proceso de cogeneración en la industria azucarera: caso Agroindustrial Paramonga, Tesis Maestría, Universidad Nacional de Ingeniería, Lima-Perú, 2016.
[2]Velez Carlos, ”Limpieza de caña en seco y aprovechamiento de la materia extraña vegetal como combustible en Brasil”, Tecnicaña, N° 26, ISSN 0123-0409, diciembre 2010.
[3]Kapustes Luis, Limpeza de Cana a Seco e Aproveitamento da Palha, Empral Jaboticabal Desenvolvimento de Equipamentos Ltda, 2015.
[4]COGEN, Bioeletricidade -Reduzindo Emissões & Agregando Valor ao Sistema Elétrico. Ethanol Summit, São Paulo, 2009.
[5]Centro de Tecnología Canavieira, Biomass power generation sugar cane bagasseand trash, CTC, Brasil, 2005.
[6]Hugot E., Handbook of Cane Sugar Engineering, Ed. Elsevier, Netherlands, 1986.
[7]Lamb B., Bilger R., “The Combustion of a Wet Cellulosic Fuel Bed”, Sugar Technology Review, Vol. 4, No. 2, 1977.
[8]Brown Robert, Thermochemical Processing of Biomass, Ed. Wiley, USA, 2011.
[9]Carvajal Arbey, Gómez Adolfo, Briceño Carlos, Características de las mezclas bagazo/residuos como combustible de calderas, Doc. Programa de Fabrica, Cenicaña, Colombia, 2011.
[10]Lora E.S., Happ J.F., Clasificación y balance térmico en hogares para combustión de biomasa, Ed. Manaus, Universidad de Amazonas, Brazil, 1997.
[11]Correa Vicente, Análisis de opciones tecnológicas para proyectos de cogeneración en el sector Sucroalcoholero,NREL, Brasil, 2010.
[12]MorgenrothB., Druce Batstone, “Development and prospects for drying bagasse by steam”, Proc. ISSCT, Vol. 25, 2005.Los artículos publicados por TECNIA pueden ser compartidos a través de la licencia Creative Commons: CC BY-NC-ND 2.5 Perú. Permisos lejos de este alcance pueden ser consultados a través del correo revistas@uni.edu.pe
Published
How to Cite
Issue
Section
License
Copyright (c) 2019 TECNIA
This work is licensed under a Creative Commons Attribution 4.0 International License.
Articles published by TECNIA can be shared under the international Creative Commons license: CC BY 4.0. Permissions beyond this scope can be inquired via email at tecnia@uni.edu.pe.
