Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
EVALUATION OF HEAT TRANSFER MODELS IN THE LCA OF BIOMETHANE, ETHANOL, GH2, AND GASOLINE IN BRAZIL
Submission Author:
Felipe Diniz , MG , Brazil
Co-Authors:
Felipe Diniz, Ana Paula Mattos, Gueber Elias Mendes Santos Júnior
Presenter: Felipe Diniz
doi://10.26678/ABCM.COBEM2023.COB2023-0440
Abstract
The use of biofuels has been listed as a priority by many governments in the fight against global warming and the search for alternatives to petroleum-based fuels. The primary motivation of this work is to assess the potential environmental impacts of different fuels for internal combustion engines. Additionally, the influences of heat transfer models on emissions are also estimated. The Life Cycle Assessment methodology is used from a well-to-pump perspective, which includes in system boundaries the stages of raw material extraction, fuel processing and distribution. The efficiency of the combustion process is analyzed in each scenario through a zerodimensional combustion model, where the heat transfer correlations of Hohenberg and Woschni are used. The three analyzed scenarios are conventional ICE fueled by gasoline, sugarcane ethanol, and biomethane. The standard functional unit assumed is 1.0 MJ of energy released by combustion. The LCA results are characterized in terms of global warming potential and human toxicity potential. The results show that the Hohenberg correlation has higher CO and NO emissions for ethanol and gasoline under high-speed conditions, while for biogas the Woschni correlation gives the best results. Moreover, biogas production shows better results with respect to the impact categories analyzed in the LCA method.
Keywords
Life Cycle Assessment (LCA), Heat transfer models, Internal combustion engine, Biofuels
