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The impact of climate condition on the optimal size of direct coupled photovoltaic-electrolyzer systems

Sayedin, F ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. Publisher: The Society for Modeling and Simulation International , 2015
  3. Abstract:
  4. Solar energy exists extensively in all parts of the world. However the intermittency of solar energy presents critical challenges to PV system. The intermittency can be covered by storing solar energy in chemical bonds such as hydrogen. This process can be performed by photovoltaic powered electrolysis of water. The energy transfer efficiency between PV and electrolyzer is subject to the distance between maximum power points (MPP) of PV module and operating points. The operating points can be adjusted by optimizing the design parameters of the electrolyzer but the maximum power points are function of PV module characteristics, solar radiation and ambient temperature. Therefore the weather condition can significantly affect the MPP and consequently the optimal size of the PV-Electrolyzer (PV/EL) system. In this paper the impact of climate condition on the optimal size and operating condition of a direct coupled photovoltaic-electrolyzer system has been studied. For this purpose the optimal size of electrolyzer for six cities of Iran which have different climate conditions is obtained and then the levelized costs of hydrogen production for these cities are compared. The results show that the climate conditions can strongly affect the size of the electrolyzer, the annual hydrogen production and consequently the levelized costs of hydrogen production
  5. Keywords:
  6. Direct coupled photovoltaic-electrolyzer system ; Bond strength (chemical) ; Electrolytic cells ; Energy transfer ; Hydrogen bonds ; Hydrogen production ; Optimization ; Photovoltaic cells ; Solar energy ; Climate condition ; Critical challenges ; Design parameters ; Electrolysis of waters ; Energy transfer efficiency ; Maximum power point ; Operating condition ; Photovoltaic ; Solar power generation
  7. Source: Simulation Series, 26 July 2015 through 29 July 2015 ; Volume 47, Issue 10 , July , 2015 , Pages 224-229 ; 07359276 (ISSN)
  8. URL: http://dl.acm.org/citation.cfm?id=2874945