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Home / Regular Issue / JTAS Vol. 32 (3) Apr. 2024 / JST-4638-2023


Effects of NaOH Concentration and Plate Surface Texture on the Performance of the HHO Generator

Asmawi Marullah Ridwan, Muhd Ridzuan Mansor, Noreffendy Tamaldin, Fahamsyah Hamdan Latief and Viktor Vekky Ronald Repi

Pertanika Journal of Tropical Agricultural Science, Volume 32, Issue 3, April 2024


Keywords: HHO generator, hydrogen, NaOH, performance, surface texture

Published on: 24 April 2024

The need for clean energy as an alternative is inevitable. HHO gas has received much attention lately. In addition to electrolyte concentration, the breakthrough with a diverse electrode surface texture approach has not been extensively performed. Therefore, this study aims to determine the effects of NaOH concentration and plate surface texture on the performance of the HHO generator. In general, the increase in electrolyte concentration combined with surface texture caused an increase in output current, HHO gas production, and output temperature. As for the applied voltage variation with various surface textures, the increase in output current, HHO gas production, and output temperature also took place, similar to the case of increasing NaOH concentration. Either an increase in electrolyte concentration or an increase in applied voltage triggers faster ion movement, leading to an increase in conductivity, thus effectively assisting the electrolysis of water. Regarding the output current and HHO gas production, the textured surface had a much higher value than the plain surface in terms of increasing NaOH concentration or applied voltage variations. However, according to the R2 results, the linear surface has a stronger relationship with the output current and HHO gas production than the cross surface. In the case of the output temperature, the linear surface was slightly lower than the cross surface. It is possibly due to impurities in the electrolyte solution that contaminate the electrode surface, resulting in a lower output temperature on the linear surface.

  • Alam, N., & Pandey, K. M. (2017). Experimental Study of hydroxy gas (HHO) production with variation in current, voltage and electrolyte concentration. IOP Conference Series: Materials Science and Engineering, 225(1), Article 012197.

  • Ayub, M. S., Yusof, S. N. A., Mohamed, S. B., Said, M. S., Asako, Y., Sidik, N. A. C., Kashim, M. S., & Mohamad, A. T. (2022). Effect of electrode plates on the engine performance and gas emissions of a four-stroke petrol engine. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 90(2), 90–108.

  • Borghi, A., Gualtieri, E., Marchetto, D., Moretti, L., & Valeri, S. (2008). Tribological effects of surface texturing on nitriding steel for high-performance engine applications. Wear, 265(7), 1046–1051.

  • Cao, X. D., Kim, B. H., & Chu, C. N. (2009). Micro-structuring of glass with features less than 100μm by electrochemical discharge machining. Precision Engineering, 33(4), 459–465.

  • Dincer, I., & Zamfirescu, C. (2012). Sustainable hydrogen production options and the role of IAHE. International Journal of Hydrogen Energy, 37(21), 16266–16286.

  • Doche, M. L., Rameau, J. J., Durand, R., & Novel-Cattin, F. (1999). Electrochemical behaviour of aluminium in concentrated NaOH solutions. Corrosion Science, 41(4), 805–826.

  • Dufour, J., Serrano, D. P., Gálvez, J. L., Moreno, J., & González, A. (2011). Hydrogen production from fossil fuels: life cycle assessment of technologies with low greenhouse gas emissions. Energy & Fuels, 25(5), 2194–2202.

  • El Kady, M. A., Farrag, A. E. F., Gad, M. S., El Soly, A. K., & Abu Hashish, H. M. (2020). Parametric study and experimental investigation of hydroxy (HHO) production using dry cell. Fuel, 282, Article 118825. /

  • El Soly, A. K., El Kady, M. A., Farrag, A. E. F., & Gad, M. S. (2021). Comparative experimental investigation of oxyhydrogen (HHO) production rate using dry and wet cells. International Journal of Hydrogen Energy, 46(24), 12639–12653.

  • Fahy, K. F. (2014). Enhancement of water electrolyzer efficiency. Journal of Energy Technologies and Policy, 4(11), 1–2.

  • Fiala, J., Kuracina, M., Hrušovský, I., & Soldan, M. (2013). Study of basic characteristics of hydrogen generator. Applied Mechanics and Materials, 448–453, 3078–3081.

  • Galama, A. H., Hoog, N. A., & Yntema, D. R. (2016). Method for determining ion exchange membrane resistance for electrodialysis systems. Desalination, 380, 1–11.

  • Grigoriev, S. A., Fateev, V. N., Bessarabov, D. G., & Millet, P. (2020). Current status, research trends, and challenges in water electrolysis science and technology. International Journal of Hydrogen Energy, 45(49), 26036–26058.

  • Hassan, H., Aissa, W. A., Eissa, M. S., & Abdel-Mohsen, H. S. (2022). Enhancement of the performance and emissions reduction of a hydroxygen-blended gasoline engine using different catalysts. Applied Energy, 326, Article 119979.

  • Ismail, T. M., Ramzy, K., Abelwhab, M. N., Elnaghi, B. E., El-Salam, M. A., & Ismail, M. I. (2018). Performance of hybrid compression ignition engine using hydroxy (HHO) from dry cell. Energy Conversion and Management, 155, 287–300.

  • Karthik, N. B. V. S. R. (2017). Better performance of vehicles using HHO gas. American Journal of Mechanical Engineering, 5(4), 167–174.

  • Kato, H., Eyre, T. S., & Ralph, B. (1994). Sliding wear characteristics of nitrided steels. Surface Engineering, 10(1), 65–74.

  • Li, H., Xu, W., Li, L., Xia, H., Chen, X., Chen, B., Song, X., & Tan, C. (2022). Enhancing the wettability for 4043 aluminum alloy on 301L stainless steel via chemical-etched surface texturing. Journal of Materials Processing Technology, 305, Article 117577.

  • Li, Z., Bai, J., & Tang, J. (2018). Micro-EDM method to fabricate three-dimensional surface textures used as SERS-active substrate. Applied Surface Science, 458, 810–818.

  • Lin, M. Y., Hourng, L. W., & Kuo, C. W. (2012). The effect of magnetic force on hydrogen production efficiency in water electrolysis. International Journal of Hydrogen Energy, 37(2), 1311–1320.

  • Manu, P. V., Sunil, A., & Jayaraj, S. (2016). Experimental investigation using an on-board dry cell electrolyzer in a CI engine working on dual fuel mode. Energy Procedia, 90, 209–216.

  • Mazloomi, S. K., & Sulaiman, N. (2012). Influencing factors of water electrolysis electrical efficiency. Renewable and Sustainable Energy Reviews, 16(6), 4257–4263.

  • Mounir, S., & Bellel, N. (2011). Hydrogen production by electrolysis of brine using a source of renewable energy. International Review of PHYSICS, 5(4), 158–161.

  • Muritala, I. K., Guban, D., Roeb, M., & Sattler, C. (2020). High temperature production of hydrogen: Assessment of non-renewable resources technologies and emerging trends. International Journal of Hydrogen Energy, 45(49), 26022–26035.

  • Naat, N., Boutar, Y., Naïmi, S., Mezlini, S., & Da Silva, L. F. M. (2023). Effect of surface texture on the mechanical performance of bonded joints: A review. The Journal of Adhesion, 99(2), 166–258.

  • Olivares-Ramírez, J. M., Campos-Cornelio, M. L., Uribe Godínez, J., Borja-Arco, E., & Castellanos, R. H. (2007). Studies on the hydrogen evolution reaction on different stainless steels. International Journal of Hydrogen Energy, 32(15), 3170–3173.

  • Poimenidis, I. A., Tsanakas, M. D., Papakosta, N., Klini, A., Farsari, M., Moustaizis, S. D., & Loukakos, P. A. (2021). Enhanced hydrogen production through alkaline electrolysis using laser-nanostructured nickel electrodes. International Journal of Hydrogen Energy, 46(75), 37162–37173.

  • Rajput, H., Atulkar, A., & Porwal, R. (2021). Optimization of the surface texture on piston ring in four-stroke IC engine. Materials Today: Proceedings, 44(1), 428–433.

  • Rao, X., Sheng, C., Guo, Z., Zhang, X., Yin, H., Xu, C., & Yuan, C. (2021). Effects of textured cylinder liner piston ring on performances of diesel engine under hot engine tests. Renewable and Sustainable Energy Reviews, 146, Article 111193.

  • Ridhuan, A., Osman, S. A., Fawzi, M., Alimin, A. J., & Osman, S. A. (2021). A review of comparative study on the effect of hydroxyl gas in internal combustion engine (ICE) on engine performance and exhaust emission. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 87(2), 1–16.

  • Rusdianasari, Bow, Y., & Dewi, T. (2019). HHO gas generation in hydrogen generator using electrolysis. IOP Conference Series: Earth and Environmental Science, 258(1), Article 012007.

  • Santilli, R. M. (2006). A new gaseous and combustible form of water. International Journal of Hydrogen Energy, 31(9), 1113–1128.

  • Soler, L., Candela, A. M., Macanás, J., Muñoz, M., & Casado, J. (2009). In situ generation of hydrogen from water by aluminum corrosion in solutions of sodium aluminate. Journal of Power Sources, 192(1), 21–26.

  • Subramanian, B., & Thangavel, V. (2020). Analysis of onsite HHO gas generation system. International Journal of Hydrogen Energy, 45(28), 14218–14231.

  • Sun, C. W., & Hsiau, S. S. (2018). Effect of electrolyte concentration difference on hydrogen production during pem electrolysis. Journal of Electrochemical Science and Technology, 9(2), 99–108.

  • Vračar, L., & Conway, B. E. (1990). Hydride formation at Ni-containing glassy-metal electrodes during the H2 evolution reaction in alkaline solutions. Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 277(1), 253–275.

  • Wang, S., Lu, A., & Zhong, C. J. (2021). Hydrogen production from water electrolysis: Role of catalysts. Nano Convergence, 8(1), 1-23.

  • Xu, Y., Wang, C., Huang, Y., & Fu, J. (2021). Recent advances in electrocatalysts for neutral and large-current-density water electrolysis. Nano Energy, 80, Article 105545.

  • Yilmaz, A. C., Uludamar, E., & Aydin, K. (2010). Effect of hydroxy (HHO) gas addition on performance and exhaust emissions in compression ignition engines. International Journal of Hydrogen Energy, 35(20), 11366–11372.

  • Yuvaraj, A. L., & Santhanaraj, D. (2014). A systematic study on electrolytic production of hydrogen gas by using graphite as electrode. Materials Research, 17(1), 83–87.

  • Zeng, K., & Zhang, D. (2010). Recent progress in alkaline water electrolysis for hydrogen production and applications. Progress in Energy and Combustion Science, 36(3), 307–326.

  • Zeng, K., & Zhang, D. (2014). Evaluating the effect of surface modifications on Ni based electrodes for alkaline water electrolysis. Fuel, 116, 692–698.

  • Zhao, Z., Zhang, Y., Quan, X., & Zhao, H. (2016). Evaluation on direct interspecies electron transfer in anaerobic sludge digestion of microbial electrolysis cell. Bioresource Technology, 200, 235–244.

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