Impact of addition oxy-hydrogen gas (HHO) on vehicle engines performance and emissions

Abstract

The electrolysis process of water produces oxy-hydrogen (HHO) gas that can be used as an energy source to solve the shortage problem of fossil fuel and reduces the exhaust emissions of greenhouse gases from vehicles engines. In this study, HHO dry cell generator was designed, fabricated and tested experimentally to investigate its performance. The hybrid internal combustion engines using HHO gas is considered one of the most important studied applications. The vehicle engines performance and gas emissions are investigated for two different engines; 150CC with carburetor and 1300CC with Electronic Control Unit (ECU). The results recorded the consumption of the fuel is reduced by 14.8% for 150CC engine and 16.3% for 1300CC engine. HHO gas reduced the emission gases by 33% and 24.5% reduction in CO and 27.4% and 21% reduction in HC for 150CC and 1300CC engines respectively. HHO gas can be efficient used as a secondary fuel for vehicle engines.

A Review of the Effects of Plate Configurations and Electrolyte Strength on Production of Brown Gas Using Dry Cell Oxyhydrogen Generator

“…This is because less power is converted to heat and less electric current is used overall. The dry cell is a compact design that helps modern engines and lowers the frequency of maintenance [29]. Additionally, a dry cell does not need to be submerged in an electrolyte solution-filled reservoir.…”

A Review of Comparative Study on The Effect of Hydroxyl Gas in Internal Combustion Engine (ICE) On Engine Performance and Exhaust Emission

“…Therefore, reducing the distance between the electrodes will reduce the resistance, and a minimum distance must be maintained to prevent the gap from rupturing [44]. Meanwhile, according to Nabil and Dawood [37], rubber under pressure has a thickness tolerance of 2 mm. A final thickness of 2 mm is appropriate to reach the current tolerance and provide enough room for HHO gas to escape freely in the desired direction.…”

“…Wet cells have a range of benefits, including increased gas generation, increased flexibility, ease of maintenance, and ease of manufacturing. On the other hand, a wet cell has the limitation of consuming more current, generating more heat, and allowing corrosion to occur through the positive electrode (anode) [37]. The heat provided by the cell and the additional current still generates more heat, turning water to steam, and replacing hydrogen with steam [30].…”