Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
OPTIMIZATION AND EXERGETIC ANALYSIS OF A REGENERATIVE CYCLE USING BIOGAS COMBINED WITH HYDROGEN AS FUEL
Submission Author:
Michel Fábio de Souza Moreira , MG
Co-Authors:
Michel Fábio de Souza Moreira, Alipio Barbosa, John Sousa, Rafael Monteiro, HANDERSON CORREA GOMES
Presenter: John Sousa
doi://10.26678/ABCM.ENCIT2018.CIT18-0387
Abstract
Recently, a great expectation of large investments in renewable energy is noticeable in Brazil, it is aiming the dependency on hydroelectric plants reduce due to rain shortages. It is important to think in alternative ways of obtaining energy through residue and recycling. The residue, also known as trash, mainly the organic type, which still represents a disposal problem to its sources offers great energy power and should be used efficiently. The biogas, for instance, can be obtained in sanitary landfills or bio digesting units. Biogas is already studied in many countries and universities, it provides alternatives which, in the future, can replace non-renewable energy. In this study, optimization and exergetic analysis of a regenerative cycle using biogas combined with hydrogen as fuel are performed. To do so, mathematical modeling of the cycle is performed based on a thermodynamic model where mass, energy, entropy and exergy balances are considered. Also, the mathematical modeling of the combustion relative to the process is performed combining the methane (as biogas) and hydrogen. This latter fuel element will be inserted to increase the power supply in an aquatubular boiler.
Keywords
thermodynamic modeling, Optimization, Exergetic Analysis, regenerative cycle, biogas and hydrogen
