hydrogen production from water using solar cells powered nafion ...

ecord the voltage and the current simultaneously for single and multi cell bench
experiments. Power supply of the solar power driven electrolysis stack was an array which
was consisted of six Siemens SM-55 photovoltaic panels connected in parallel. Current and
voltage of these panels were measured by a DC power analyzer of CASE Electronics.
3.2. Methods
The experiments of this study can be categorized into two groups.
- To manufacture an electrolysis cell and investigate its optimum working
conditions.
- To manufacture an electrolysis stack and couple it with photovoltaic panels to
investigate the solar hydrogen production ability on Iztech campus.
3.2.1. Producing the PEM Electrolysis Cell
The design of a cell structure which supplies water and electricity while
withdrawing oxygen and hydrogen simultaneously from membrane electrode assembly is
critical. Carbon graphite plates were selected as construction materials due to their high
electrical and heat conductivity and easy to machine properties. The plates were designed in
Solid Works® and then transformed into a Parasolid model computer file to process in our
institute’s computer numerical controlled (CNC) lathe. 2D diagram of the proposed
electrolysis cell design is given in Figure 3.1
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