doctoralThesis
Análise experimental de danos em pistões de motor à gasolina operando com adição de gás hidróxi
Fecha
2015-05-22Registro en:
SANABIO, Robson Guimarães. Análise experimental de danos em pistões de motor à gasolina operando com adição de gás hidróxi. 2015. 157f. Tese (Doutorado em Ciência e Engenharia de Materiais) - Centro de Ciências Exatas e da Terra, Universidade Federal do Rio Grande do Norte, Natal, 2015.
Autor
Sanabio, Robson Guimarães
Resumen
The addition of hydrogen gas as an alternative fuel source has been
widely used, as well reported in scientific literature. Today, several experiments
are underway for the use of hydrogen generators (electrolysers) demand for
motor vehicles. In all these products their ads manufacturers claim that this
provides a reduction of fuel consumption, reduces the emission levels of toxic
gas by the discharge and improves engine life. This research analyzes the
physical structure of engine components using electrolysis on demand. To this
end, a stationary system was fitted with a power generator of electricity, drum
roller and adapted two electrolyzers: a dry cell and wet cell other. In steps
observation were consumption analyzes in four work load ranges and observing
the piston engine, which has been cut and analyzed by Optical Microscopy
(OM), Scanning Electron Microscopy and Dispersive Energy (SEM-EDS), X –
Ray Diffraction (XRD) and Confocal Microscopy, the stationary system in each
step. The results showed a considerable reduction in fuel consumption and a
high corrosion in the original factory piston constituted of aluminum-silicon alloy.
As corrosion barrier was made a plasma nitriding in the piston head, which
proved resistant to attack by hydrogen, although it has presented evidence also,
of having been attacked. It is concluded that the automotive electrolysers can
be a good choice in terms of consumption and reducing toxic gas emissions,
but the material of the combustion chambers of vehicles must be prepared for
this purpose.