Design of Dry HHO cell to Produce Hydrogen using Electrolysis

HHO dry cell means the cell that can separate the Oxygen and hydrogen from water molecules by DC electricity. In this paper, a simple dry HHO generation system has been designed and constructed. This system was used to investigate the effects of the electrical power and the reaction time on the production of hydroxy gas (HHO). In this experiment, the ammonia hydroxide is used as electrolyte with parallel plate of 316L-grade stainless steel as electrode. A 12-volt battery was used as an electrical power source in the experiment. For the certain electrolyte strength, the results obtained showed that, increasing in the power and the time of reaction leads to increase the yield of HHO gas, however the energy consumption to produce one liter of hydrogen is not dependent on the value of the current. Also, the results showed that, the energy consumption for the production of one kilogram of hydrogen is about 70.5600MJ. The results compared with that calculated using “Biggs HHO calculater” and was found in good agreement. In this experimental work, the ammonia hydroxide has been selected as the electrolyte of the system, because of its higher productivety of HHO compared with other common electrolytes such as sodium hydroxide (NaOH), and sodium carbonate (Na2CO3) which are used in this kind of systems. On the other hand, it was observed that the ammonia hydroxide caused excessive corrosion which is considered as disadvantage of the ammonia hydroxide.