Development of Electrolysis System Powered by Solar‐Cell Array to Supply Hydrogen Gas for Fuel‐Cell Energy Resource Systems
- Conference date: 9–11 June 2009
- Location: Jakarta (Indonesia)
The huge demand of energy worldwide and the depletion of fossil based energy, is a strong reason to rapidly develop any kind of renewable energy resources, which has economical advantages and zero pollution effect. One of the renewable energy technologies aimed in this paper is the generation of electric‐energy based on fuel‐cell technology, where the input hydrogen gas is supplied by electrolysis system powered by renewable energy system based on solar cell. In this paper, the authors explain the development of electrolysis system which is powered by solar cell array to supply hydrogen for fuel‐cell system. The authors explain in detail how to design an efficient electrolysis system to obtain high ratio conversion of electric energy to hydrogen gas volume. It includes the explanation of the usage of multiple anodes with a single cathode for many solar cell inputs in a single electrolysis system. Hereinafter this is referred as multiple anode electrolysis system. This multiple anode electrolysis system makes the management of hydrogen gas becomes more efficient and effective by using only a single hydrogen gas storage system. This paper also explain the careful design of the resistance value of the electrolysis system to protect or avoid the solar cell panel to deliver excessive current to the electrolysis system which can cause damage on the solar cell panel. Moreover, the electrolyte volume detector is applied on the system as a tool to measure the electrolyte concentration to assure the system resistance is still in the allowed range. Further, the hydrogen gas produced by electrolysis system is stored into the gas storage which consists of silica‐gel purifier, first stage low pressure gas bottle, vacuum pump, and second stage high pressure gas bottle. In the first step, the pump will vacuum the first bottle. The first bottle will collect the hydrogen from the electrolysis system through the silica gel to get rid of water vapor. When the first bottle pressure is close to atmospheric pressure, then the vacuum pump will evacuate the hydrogen gas from the first bottle to store into the second high pressure bottle. When the first bottle become vacuum then the procedure is repeated again.
- Renewable energy
- Solar cells
- High pressure
- Hydrogen energy
- Atmospheric pressure
- Solar panels
- Vacuum pumps
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