Journal
INTERNATIONAL JOURNAL OF GREEN ENERGY
Volume 12, Issue 11, Pages 1086-1090Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15435075.2014.890105
Keywords
HHO cell; HHO gas; Hydroxyl cell; Brown gas; Gasoline engine performance
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The effect of a homemade complete hydroxyl system on automobiles' performance under real operation conditions has been investigated on three gasoline-fueled four-stroke four-cylinder engine automobiles. All measured parameters were carried out by using the AVL DiTEST Abgas test and the Lancom 9 gas analyzer. The exhaust gases CO2, O-2, CO, NOx, and CxHy, at the exhaust tail pipe and before the catalytic converter were measured. A significant reduction of 35-45% in the specific fuel consumption was observed. An in-cylinder chemical reaction model was developed to understand the impact of hydroxy gas on the combustion chemistry of engine. The in-cylinder pressure results showed about 3-bar increase in pressure peak at 1.2% H-2 addition to the engine air/fuel mixture. Also, the mixture ignition temperature was reduced from 600 to 560 K. The exhaust gas species showed a 12% increase in H2O. Furthermore, the comparative t-test showed that the average CO volumetric concentration was reduced by 12%, while the average O-2 was increased by 11%. On the other hand, hydrocarbon concentration was randomly varying with a maximum reduction of 35% at 2420 rpm. The origin of the observed significant influence of introducing H-2 and O-2 molecules on the combustion reaction mechanism and flame front stability has been explained.
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