Abstract
A great challenge in water electrolysis is how to optimize the major factors that influence the production of hydrogen gas. Over the past years, different methods have been used to produce hydrogen gas from carbon-base fossil fuels but these methods have been proven to be environmentally unfriendly due to the enormous release of greenhouse gases associated with their use. In this work, an experimental study was carried out to evaluate the effect of electrolyte strength, voltage and time on the volume of HHO gas produced using a design built HHO gas generator. The generator was constructed from Stainless Steel 316 L plates made of 3 anodes, 3 cathodes, and 20 neutral plates. During the study, the strengths of KOH, NaOH, and NaHCO3 was prepared within the range of 0.010 M - 0.030 M. The prepared strengths for each catalyst were then varied across voltage range of 9 V to 13 V for 50 seconds. The experimental results obtained showed that, increasing electrolyte strength, voltage and time proportionally increased the yield of HHO gas. An optimal yield rate of 2.27 cm3/s of HHO gas was obtained when the generator was run at 13 V using 0.025 M KOH. In addition, other factors studied including electrode surface morphology, plate’s configuration, and temperature also showed improvement in yield of HHO gas by 41.85%, 69.74%, and 71.96% respectively.
Highlights
Fossil fuels are a versatile and vital energy source which human productive lives are largely dependent on for commodities, transportation, and energy production
An optimal yield rate of 2.27 cm3/s of HHO gas was obtained when the generator was run at 13 V using 0.025 M KOH
Research and development (R&D) conducted over recent decades has shown that the electric power sector and transportation sector account for 82% and 95% respectively of all fossil fuel consumed in the world
Summary
Fossil fuels are a versatile and vital energy source which human productive lives are largely dependent on for commodities, transportation, and energy production. Research and development (R&D) conducted over recent decades has shown that the electric power sector and transportation sector account for 82% and 95% respectively of all fossil fuel consumed in the world This makes fossil fuel the highest consumed source of energy [2]. Pandey in 2017 [11] further did a systematic study on the electrolytic production of hydrogen gas using graphite as electrode Their results showed a significant effect on the production of hydrogen gas when the reaction parameters such as the electrolyte concentration of KOH, applied voltage, and current was increased. The evaluation of the efficiency improvement for electricity generation by combining HHO gas, coal, and oil in a boiler was undertaken by Chia-Nan Wang et al, in 2017 [13]. The research evaluates the influence of electrode surface morphology, temperature and neutral plate’s configuration presented in other works reviewed
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