Investigation of water motion in a fuel cell channel with a reservoir

Altintas A. G., Celik E., Karagöz İ.

Journal of Cleaner Production, cilt.342, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 342
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1016/j.jclepro.2022.130975
  • Dergi Adı: Journal of Cleaner Production
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Business Source Elite, Business Source Premier, CAB Abstracts, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Pollution Abstracts, Public Affairs Index, Veterinary Science Database, Civil Engineering Abstracts
  • Anahtar Kelimeler: Water management, PEM fuel cell, VOF model, Water discharge, Droplet motion, FLOW CHANNEL, ENERGY, OPTIMIZATION, MANAGEMENT, TRANSPORT, HYDROGEN, REMOVAL, EXERGY, SYSTEM, FIELD
  • Bursa Uludağ Üniversitesi Adresli: Evet

Özet

© 2022 Elsevier LtdThis study presents a novel gas distribution channel configured with a reservoir and an extra outlet to prevent channels from being clogged by long slugs in the vicinity of the outlet port in fuel cells. The motion of water droplets in this channel was investigated using the volume of fluid method. The behavior of the water droplets in the channel is examined under varying outlet pressures, droplet size, the initial position of the droplets, and the direction of the gravitational acceleration. The results showed that the proposed design yields the water droplets to break up while preventing channel clogging and facilitating water removal. It has also been observed that water discharge accelerates as the reservoir outlet relative pressure decreases, and discharge occurs to a large extent when the gauge pressure is lower than −1000 Pa. The proposed intermediary water evacuation approach and design have been determined to have the capability of active water discharge from multiple points via an appropriate pressure differential. It is seen that liquid water propagation to larger areas, especially in long flow lengths, can be prevented via the proposed new design and approach.