Abstract
One of the main challenges in the chemical industry is to reduce dependence on fossil fuels and the emission of greenhouse gases through the use of renewable raw materials. The International Energy Agency (IEA) has identified biomass as the future technology to mitigate this effect, which can be achieved through the use of synthesis gases (Syngas) as fuel for the energy generation. On the other hand, the cogeneration systems using microturbine are appropriate technologies to take advantage of the energy available in exhaust gases that is generally wasted in conventional power generation systems. The article presents the energy and exergetic efficiencies analysis of the system, and the total costs in the generation of energy through the use of synthesis gas obtained by the gasification of sugarcane bagasse, native product of Colombia with compositions of carbon dioxide (13.7 %), carbon monoxide (13.7 %), water (10.7 %), hydrogen (13.91 %), oxygen (4.21 %), methane (4.12 %), and nitrogen (39.6 %). The physical and chemical properties of the system were calculated using the Matlab and Unisim software, allowing identifying through an exergoeconomic analysis the equipment where the greatest irreversibilities are presented. The results reveal that the increase of the compression ratio, improves the thermodynamic performance of the system. However, increasing the compression ratio of the compressor increases the rate of system costs per unit time. Moreover, rising of the outlet temperature of the preheater will be useful for the system in thermal and exergoeconomic terms. Finally, the higher exergy destruction were found out at the Combustion chamber.
