Hydrogen concentrator demonstrator module with 19.8% solar-to-hydrogen conversion efficiency according to the higher heating value
| Autor: | Jens Ohlmann, Leon Schellhase, Armin Bösch, Jan Fresko, Tom Smolinka, Frank Dimroth, A. Fallisch, Marc Steiner, Simon Thiele, Lukas Zielke, Mario Zedda |
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| Přispěvatelé: | Publica |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Hydrogen hydrogen production Electrolytic cell Nuclear engineering Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology Concentrator Energietechnik law.invention law 0502 economics and business Solar cell 050207 economics Renewable Energy Sustainability and the Environment business.industry PEM Water electrolysis 05 social sciences Photovoltaic system Energy conversion efficiency Wasserstofferzeugung durch Elektrolyse Wasserstofftechnologie 021001 nanoscience & nanotechnology Condensed Matter Physics Renewable energy III-V solar cell Fuel Technology chemistry 0210 nano-technology business Polymer electrolyte membrane electrolysis |
| Zdroj: | International Journal of Hydrogen Energy. 42:26804-26815 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2017.07.069 |
| Popis: | Renewable hydrogen is a key element to a sustainable energy system of the future. Therefore solar hydrogen generation has been investigated by various research groups in recent years. The patented concept of the Hydrogen Concentrator (HyCon), which combines III-V multi-junction solar cells with polymer electrolyte membrane electrolysis, has been constantly developed over the last years. In this work, a unique weatherproof HyCon module with an area of 8 × 90.7 cm2 was build and characterized in an outdoor measurement for over two month. During this measurement period, the module showed a stable operation regardless of the water volume flow. The module works under natural convection without any circulation pumps at a suitable maximum temperature of 60–70 °C. The HyCon module consists of eight individual units (HyCon cells), each combining a photovoltaic and an electrolysis cell. Some of the HyCon cells reach a solar-to-hydrogen conversion efficiency of 20% according to the higher heating value at high current densities of 0.8 A/cm2. On the module level a maximum efficiency of 19.8% is reached. To the best of our knowledge this is the highest conversion efficiency so far achieved at such high current densities using a dual junction solar cell. |
| Databáze: | OpenAIRE |
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