Resumo

FRANCK COLOMBRES, Federico J. et al. Thermal efficiency of modern bagasse boilers in Tucumán, Argentina. Rev. ind. agric. Tucumán [online]. 2011, vol.88, n.2, pp.41-49. ISSN 1851-3018.

Three modern steam boilers, installed in sugar mills in Tucumán, R. Argentina, to attain a cleaner production, were evaluated. Their major operating variables were determined using the methodology for calculating thermal efficiency of steam generators developed by Sección Ingeniería y Proyectos Agroindustriales of Estación Experimental Agroindustrial Obispo Colombres in 2008, and data obtained from measurements and material and energy balances. Energy efficiency values determined for each boiler were 73.5%, 75.2% and 77.3%, respectively. A comparison with conventional steam boilers was drawn and it was found that bagasse savings amounted to about 27.6% when modern boilers were used. The possibility of improving the thermal efficiency of the plant cycle by increasing boiler pressure is mentioned as an additional advantage.

Palavras-chave : Measurements; Energy; Biomass; Steam.

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