International Research Journal of Advanced Engineering and Science ISSN (Online): 2455-9024 563 Alfi Tranggono Agus Salim, R. Gaguk Pratama Yudha, Kanjeng Sunan Lawu, and Ahmad Yusuf, “Performance Characteristics between Titanium and Stainless Steel materials as Electrodes on Dry Cell type HHO Gas Generator,” International Research Journal of Advanced Engineering and Science, Volume 4, Issue 3, pp. 563-566, 2019. Performance Characteristics between Titanium and Stainless Steel Materials as Electrodes on Dry Cell Type HHO Gas Generator Alfi Tranggono Agus Salim 1 , R. Gaguk Pratama Yudha 2 , Kanjeng Sunan Lawu 3 , Ahmad Yusuf 4 1,2,3,4 Engineering Department, Politeknik Negeri Madiun, Madiun, Indonesia Abstract— The HHO generator is a device that uses the principle of water electrolysis to produce HHO gas, that is a gas consisting of 2 hydrogen molecules and 1 oxygen molecule. The HHO generator is a technology that can be implemented on an internal combustion engine. In a previous research of a HHO generator with a direct connection system, the electrolyte temperature reached more than 90 o C. If the temperature continues to increase, the HHO gas produced will mix with water vapor. The electrode material choice in the HHO generator can affect for electrolyte temperature increase, HHO gas production, HHO generator power, and the efficiency of HHO generator. Therefore, a research be conducted about electrode material and the application of neutral plates to the HHO generator Dry cell type. The electrode material that used as object of research is stainless steel 316 and titanium. Titanium material has a higher thermal conductivity value and lower electrical resistance value than stainless steel 316 material. The parameters measured in this research are electric voltage, electric current, electrolyte temperature in the HHO generator, electrolyte temperature in the reservoir tank, HHO gas temperature, and HHO gas production. While the parameters calculated are electrical power requirements of the HHO generator dry cell type, HHO gas rate production, and efficiency of the HHO generator dry cell type. The results of performance characteristics comparation of HHO generator show that HHO generator with stainless steel 316 electrodes have better performance compared to HHO generator with titanium electrodes. Keywords— HHO generator dry cell type, stainless steel 316, titanium, performance. I. INTRODUCTION Alternative energy is energy derived from natural elements available in large quantities such as wind, air, sun, plants, and geothermal energy. One of the most economical and widely available alternative energies is air, various types of water utilization technologies as alternative energy, are used by Microhydro, PLTU, PLTA, and HHO Generators [1]. Of the various technologies that use water, HHO generators are the most economical and easy to implement technology for vehicles with internal combustion engines. The HHO generator uses the principle of electrolysis to break down air into two molecules, hydrogen and oxygen, in the form of gas [2]. The use of a neutral plate on the HHO generator type wet cell shows that by adding a neutral plate on the HHO gas generator to the wet cell type, the power of the HHO gas generator used for the electrolysis process of water becomes decreased. So that reduce losses that cause the generator to heat up in previous studies. Addition of neutral plate also causes the rate of production of HHO gas to experience an increase [3]. In the event of electrolysis, the selection of metal as an electrode is very important considering that it can affect the chemical reactions that occur. The flowing electric current plays an important role in producing moles of products from the electrolysis process [4]. Therefore, research will be conducted on the electrode material and the use of neutral electrode plates for the HHO generator, especially in the dry cell type. The research carried out was to compare the characteristics of the HHO Generator's performance in the dry cell type by using different electrodes (cathodes and anodes), as well as the addition of a neutral electrode plate. The electrode material used in this study is stainless steel 316 and titanium. Titanium metal has lower density and resistance, as well as the level of corrosiveness to KOH and lower thermal conductivity compared to stainless steel 316 [5]. II. METHODOLOGY This research was conducted with an experimental method to determine the characteristics of HHO 316 stainless steel electrode generator performance and HHO titanium electrode generator. The HHO generator consists of 3 anodes, 3 cathodes and 5 neutral plates. The electrolyte used was a mixture of 1 liter of distilled water with 4 grams of KOH. The electric power of the HHO generator is supplied by the battery in charge HHO generator testing is carried out until the electrolyte temperature reaches 70 o C or the test time has reached 20 minutes. For performance parameters the HHO generator is needed to know the following: A. HHO Generator Power Consumption Electric power that enters the HHO generator when supplied by the battery. Formulation to find out the HHO generator power consumption as follows [6]: P = V x I B. HHO Gas Flowrate Production The gas produced by the HHO generator as long as the HHO generator is supplied with electricity by the battery. The production of HHO gas is calculated by the flow meter.