Revista industrial y agrícola de Tucumán
On-line version ISSN 1851-3018
DE BOECK, Guillermo et al. Simulation of cogeneration systems in sugar factories in Tucumán. Rev. ind. agric. Tucumán [online]. 2011, vol.88, n.1, pp. 29-36. ISSN 1851-3018.
Feasible modifications of the steam scheme of a typical sugar factory in Tucumán were posed in order to obtain a higher surplus in electric power generation. The typical sugar factory considered in this work had a 10.000 t/day milling capacity and produced steam at 20 bar, consuming 51.4% cane of live steam. The analyzed alternatives for this type of factory included different pressure levels (43, 65 and 85 bar), three different types of turbo generators (back pressure, back pressure/extracting and condensing/extracting turbo generators), electrification of drives and different steam consumption rates for heating purposes (35 and 40% cane). Cycle Tempo 5.0 program, a flexible and easy-to-use tool for mass and energy balance calculations, was used. A technical pre-feasibility study showed that a typical sugar factory using 35% cane heating steam could indeed achieve a generation surplus of about 89.3 kWh/t cane by replacing its generation units with 85 bar equipment and extraction-condensation turbo generators.
Keywords : Cycle Tempo; Process simulation; Cogeneration; Sugar industry.