Study of the operation of the internal combustion engine fueled by ethanol with addition of water to the combustion chamber

• Grant number: 15/20801-3
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: November 01, 2015
• End date: April 30, 2018
• Field of knowledge: Engineering - Mechanical Engineering - Mechanical Engineering Design
• Agreement: Peugeot Citroën
• Principal Investigator: Janito Vaqueiro Ferreira
• Grantee: Jair Leopoldo Loaiza Bernal
• Host Institution: Faculdade de Engenharia Mecânica (FEM). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated research grant: 13/50238-3 - Conceptual study of an advanced ethanol-fueled engine, AP.BIOEN.CPE

Abstract

At the end of 50 years, studies have shown that the introduction of water in the fuel supply system for engines generated benefits in performance. The first experiments were carried out in radial engines of some aircraft that participated in World War II, however, around 60 are accounts of the introduction of this concept in tuborreatores used by Boeing® the planes 707 and 747; logically level search as the commercial production idea has never been taken due to the introduction of water problems such as freezing when the outside temperature 0 C and its effect on certain materials used at the time for the construction of aircraft. Recently, studies have shown that the use of water as an additive in diesel emissions, significantly improve the income of engines, producing the added benefit of reducing harmful gases emitted into the atmosphere in a relevant manner; included for gasoline, are commercial injection systems that mix water-ethanol to provide substantial improvements in engine power delivery and fuel economy. Although there is a wide literature on the use of water as an additive in diesel emissions, there is little information when it comes to gasoline engines, considering that the market offers devices that add water in intake systems, while not designed specifically for the use of a mixture of water-air-fuel. It is not known precisely the consequences that this may cause the mixing parameters, such as the life of engine components. Within this context, this project aims to study the behavior of a motor powered by ethanol, in which water is added by direct injection to the combustion camera; in order to establish which parameters are affected by the combustion of this mixture, and characterize the device yield. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

LOAIZA BERNAL, JAIR LEOPOLDO; FERREIRA, JANITO VAQUEIRO. Model of water injection process during closed phase of spark ignition engine. ENERGY, v. 174, p. 1121-1132, MAY 1 2019. (15/20801-3)

RUFINO, CAIO H.; DE LIMA, ALESSANDRO J. T. B.; MATTOS, ANA P.; ALLAH, FAZAL U. M.; FERREIR, JANITO V.; GALLO, WALDYR L. R.. Effects of combustion products composition models on the exergetic analysis of spark-ignition engine fuelled with ethanol. ARCHIVES OF THERMODYNAMICS, v. 40, n. 3, p. 27-42, 2019. (13/50238-3, 15/20801-3, 16/06043-1)

RUFINO, CAIO H.; DE LIMA, ALESSANDRO J. T. B.; MATTOS, ANA P.; ALLAH, FAZAL U. M.; BERNAL, JAIR L. L.; FERREIRA, JANITO V.; GALLO, WALDYR L. R.. Exergetic analysis of a spark ignition engine fuelled with ethanol. ENERGY CONVERSION AND MANAGEMENT, v. 192, p. 20-29, JUL 15 2019. (16/06043-1, 15/20801-3, 13/50238-3)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

BERNAL, Jair Leopoldo Loaiza. Estudo do funcionamento de um motor de combustão interna, alimentado por injeção indireta de etanol e injeção direta de água na câmara de combustão. 2019. Doctoral Thesis - Universidade Estadual de Campinas (UNICAMP). Faculdade de Engenharia Mecânica Campinas, SP.