<![CDATA[Electrolysis is a process of decomposing water molecules (H2O) into hydrogen (H2) and oxygen (O2) with the help of electrical energy as a trigger for the process. In the electrode process, it takes two electrodes to be placed in water. Electrolysis reaction is a redox reaction, in which the reduction reaction occurs at the cathode forming hydrogen and oxidation occurs at the anode and forms oxygen. The purpose of this study was to determine the effect of variations in the diameter of the electrode hole, the shape of the electrode and the number of neutral plates on the production of Brown Gas by using NaOH as a catalyst. The electrodes used are plain, square, circle and cross shape, and the diameter of the electrode hole is 5 mm, 8 mm, 10 mm and 12 mm. besides that the number of neutral plates varied 4 pieces, 6 pieces, and 8 pieces. NaOH dissolved in water has a percentage of 1.77%. From the results of the study, it is shown that the rate of production increased as the number of neutral plates increased and the power needed by the generator also increased, but the efficiency of the generator was smaller. The diameter of the electrode hole and the shape of the electrode also affect Brown gas production, this is because the electrode cross-sectional area in contact with the electrolyte also has different values. The highest productivity value on cross shape electrode, 10 mm electrode hole diameter and the number of neutral plate 8 pieces, and the lowest in the form of the plain electrode, 5 mm hole diameter and 4 neutral plates. The lowest generator efficiency in the electrode variation is a circular shape, the diameter of the electrode hole is 12 mm and the use of 8 neutral plates and the largest in the square electrode, 12 mm electrode hole diameter and 4 neutral plates.]]>
