Development of synthetic jet air blower for air-breathing PEM fuel cell

Jongpil Choi, Eon Soo Lee, Jae Huk Jang, Young Ho Seo, Byeonghee Kim

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


This paper presents a synthetic jet air blower actuated by PZT for air blowing for air-breathing micro PEM fuel cell. The several factors to affect the performance of air-breathing PEM fuel cell such as air flow rate, opening ratio and cathode open type in the cathode side were studied. Especially, an air flow rate is critical condition to improve its performance. In this paper, we developed a synthetic jet air blower to supply a high stoichiometric air flow. The synthetic jet mechanism is a zero mass flux device that converts electrical energy into the momentum. The synthetic jet actuation is usually generated by a traditional PZT actuator, which consists of a small cylindrical cavity, in/outlet channel and PZT diaphragms. The flow rate of the fabricated synthetic jet air blower was 400cc/min at 550Hz and its power consumption was very low under 0.3W. The proposed air-breathing PEM fuel cell which installed synthetic jet air blower was higher performance and stability during continuous operation than the air-breathing fuel cell without auxiliary device to supply the air. The results showed that the maximum power density was 188mW/cm 2 at 400mA/cm 2. This maximum power density and durability were improved more than 40% and 20%, respectively.

Original languageEnglish (US)
Pages (from-to)31-34
Number of pages4
JournalWorld Academy of Science, Engineering and Technology
StatePublished - Aug 2009
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Engineering


  • Air-breathing PEM fuel cell
  • Opening ratio
  • Power consumption
  • Synthetic jet air blower


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