Abstract
This paper elaborates on the hydrogen technology with respect to electrical power accumulation in hydrogen via Hogen GC600 electrolyzer. Further details will include options for storage of hydrogen into containers currently available. The measurements contained in the paper illustrate laboratory research of hydrogen generation in the electrolyzer which are being taken at the Fuel Cells Laboratory, VSB – TU Ostrava. The matter comprises research on impact of changes to parameters of this electrolyzer on efficiency of gaseous hydrogen production. Electric power needful for the electrolyzer supply is delivered from photovoltaic panels.
Highlights
To accumulate electrical power with help of hydrogen technologies and at the same time use the advantage of zero-emission renewable energy sources (RES), hydrogen must be generated by water electrolysis
Generation - H2O electrolysis takes place in an electrolyzer which transforms electrical energy into chemical one the basis of synthetically produced fuel - hydrogen, Electrolyzer is, in terms of efficiency, the weakest element of electrical power hydrogen accumulation cycle. For this reason we have focused our attention on research aiming at enhancing the efficiency of connected Hogen GC600 electrolyzer
During last research we have found that the total efficiency of our island hydrogen system is less than 9 %
Summary
To accumulate electrical power with help of hydrogen technologies and at the same time use the advantage of zero-emission renewable energy sources (RES), hydrogen must be generated by water electrolysis. An osmotic unit in an electrolyzer processes modified water at the time of low load in electricity system or with use of electrical power from photovoltaic panels (at the Fuel Cells Laboratory, VSB–Technical University of Ostrava). Electrolyzer is the main component of hydrogen accumulation assembly as it affects the resultant technical and economic parameters of the hydrogen accumulation cycle. The performance of electrolyzer is directly proportional to surface area of electrodes, which represent the major share of the final price of this appliance. The amount of energy accumulated depends on the size of hydrogen storage container only. Hydrogen generation cycle contains two basic procedures:
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