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- Performance study of a microturbine system for cogeneration application using biogas from manipueiraPublication . Chaves, Yasmim; Springer, Marcus; Boloy, Ronney Arismel Mancebo; Soares, Orlando; Madeira, Jonni Guiller FerreiraCassava is a commodity that has great importance in food security in many developing countries. The main product in Brazil produced from cassava is the flour, representing approximately 60% of the cassava final destination. As a by-product of this process, we have a wastewater called manipueira. This effluent is highly toxic because it contains cyanidric acid. The manipueira has great potential for biogas production, adding values to the cassava production chain and, also, reducing the content of cyanidric during the methanation process. This study analyzes the energy and economic efficiency of the biogas production from the manipueira produced in a large power plant, using it as an energy source in the feeding of a cogeneration system composed of a gas microturbine and a heat recovery system, whose purpose is to generate electric and thermal energy. The use of themicroturbine systeminstead of other conversion technology is based on the power it presents when it is used for cogeneration, increasing the systemefficiency. The study showed that from the economic feasibility calculation, it was possible to determine the cost of producing electricity of US$ 0.16/kWh and of thermal energy of US$ 0.04/kWh with an amortization period of 1.3 years. The results obtained from these analyzes showed that the use of this biofuel is a good choice for energy generation.
- Estado da arte da incorporação de um sistema de cogeração de energia em uma planta de produção de biodiesel e hidrogênioPublication . Nobrega, Glauco Tapijara Vallicelli; Boloy, Ronney Arismel Mancebo; Soares, OrlandoThe steady increase in energy use across the globe forces society to seek alternatives to traditional sources of energy, since these are not only considered to be finite but also have a significant environmental impact. In this context, alternative forms of fuels that are renewable and ecologically sustainable are gaining notoriety. In this way, the article aims to present the raw material and products generated in a hydrogen and biodiesel production plant and, in addition, demonstrate how a cogeneration process has the potential to make this production even more sustainable and economical.