Compression performance of an electrochemical hydrogen compressor at low and high temperatures


Aykut Y., AKAY R. G., BAYRAKÇEKEN YURTCAN A.

International Journal of Hydrogen Energy, cilt.75, ss.222-228, 2024 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 75
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1016/j.ijhydene.2024.01.192
  • Dergi Adı: International Journal of Hydrogen Energy
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Artic & Antarctic Regions, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Environment Index, INSPEC
  • Sayfa Sayıları: ss.222-228
  • Anahtar Kelimeler: Cathode pressure, Compression ratio, Electrochemical hydrogen compressor, Hydrogen, Operating temperature
  • Atatürk Üniversitesi Adresli: Evet

Özet

After hydrogen production, it can storage and compression for transportation is critical process. In this regard, the electrochemical hydrogen compressor, which allows simultaneous purification and compression of hydrogen, has attracted great attention in recent years. In this study, the compression performance of a single-cell electrochemical hydrogen compressor at different temperature values was investigated. Accordingly, experiments were carried out under low (50–80 °C) and high (120–180 °C) temperature conditions. The optimal polarization curve for electrochemical hydrogen compressors was reached 70 °C at low temperatures and 160 °C at high temperatures. Furthermore, increasing the cell voltage decreases compression time and improves performance. A high compression ratio was achieved at 0.8 V cell voltage. At this voltage, different times are needed at low and high temperatures to compress the hydrogen in the cathode up to 5 bar. Finally, based on the single-cell system's testing results, the stack cell can attain superior compression values.