Supplying the energetic needs of the farm Can Barrina (Osona) by transforming cattle raising and agricultural wastes into biogas: Technical study of applicable technologies
Estadístiques de LA Referencia / Recolecta
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/329703
Tipus de documentProjecte Final de Màster Oficial
Data2020-07-21
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
On farms around the world, millions of tons of livestock and agricultural waste are constantly generated of which, although a significant part of them can be reused as fertilizers and fertilizers, there is a considerable amount that does not have a clear or defined usage/purpose. Indeed, there is a huge energy potential – unexplored if compared to what it could suppose in quantitative absolute terms – in the reuse of this wastes for biogas generation. This Master's Thesis aims to study and size an Energy Generation System – electrical and thermal – based on the production of biogas using an anaerobic digester: Taking advantage of the wastes and resources associated to the nrmal operation of the farm Can Barrina, located in Santa Cecília de Voltregà (near Vic). This project models the real thermal and electrical demand of this farm houly, by using Excel and MATLAB computer tools; in order to know what would be the optimal system to transform this wastes/resources into energy available for selfconsumption. Once the hourly demand is known, the available resources and waste are studied in detail to select those that boost biogas production yield, optimizing it. Finally, three different types of conversion technologies (to transform biogas into final energy) are compared: A Solid Oxide Fuel Cell, a conventional gas cycle with gas micro-turbine that burns the biomethane resulting from refining the biogas, and finally the same fuel cell with a gas micro-turbine that uses the exhaust gases from the cell to increase the electrical performance of the system. Consequently, a technical, economic and environmental study is carried out to analyse the viability of the installation for the most suitable system considering Can Barrina’s needs: Being clearly the last conversion technology presented the best option following the technic and economic criteria. Once the necessary calculations have been performed, from a technical and environmental point of view the percentage of self-consumption covered by the system would generate significant energy savings and mitigation of polluting gases. Economically, the results obtained show a strong dependence on the variability of the harvesting periods of maize to amortize the initial investment, since maize production cannot be predicted at all and a series of bad harvests could jeopardize the economic viability of the project (even if positive results are more likely, risk must be contemplated)
TitulacióMÀSTER UNIVERSITARI EN ENGINYERIA DE L'ENERGIA (Pla 2013)
Col·leccions
Fitxers | Descripció | Mida | Format | Visualitza |
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report-vittoriosbarbaro.pdf | 6,136Mb | Visualitza/Obre | ||
annexs-vittoriosbarbaro.pdf | 602,8Kb | Visualitza/Obre |