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Effects of Operating Conditions on the Oxygen Removal Performance of the Deoxo Chamber in the Water Electrolysis System

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  • Sooin Kwon

    (School of Mechanical Engineering, Pusan National University, Geumjeong-gu, Busan 46241, Republic of Korea
    School of Electronical Engineering, Pusan National University, Geumjeong-gu, Busan 46241, Republic of Korea
    Sunbo Unitech R&D Center, 97, Centum jungang-ro, Haeundae-gu, Busan 48058, Republic of Korea)

  • Seongyong Eom

    (School of Mechanical Engineering, Pusan National University, Geumjeong-gu, Busan 46241, Republic of Korea)

  • Gyungmin Choi

    (School of Mechanical Engineering, Pusan National University, Geumjeong-gu, Busan 46241, Republic of Korea)

Abstract

Although the production of high-quality hydrogen from electrolysis systems is essential, research in this area is limited. In this study, we investigate the effect of operating conditions on the change in oxygen concentration through computational analysis for optimizing the deoxo chamber of a water electrolysis system. The test results of the water electrolysis system are simulated, and the oxygen concentration of the deoxo chamber is calculated through computational fluid dynamics analysis according to various conditions, such as the pressure, temperature, and flow rate. The O 2 removal performance is significantly affected by the operating pressure and temperature, with an increase in both leading to a decrease in the O 2 concentration in the water electrolysis system. Furthermore, we confirm that the change in the flow rate into the chamber has a minor effect on the change in the oxygen removal performance when the inlet flow rate was 1–1.5 kg/h and the length diameter ratio of the chamber is 38.4.

Suggested Citation

  • Sooin Kwon & Seongyong Eom & Gyungmin Choi, 2023. "Effects of Operating Conditions on the Oxygen Removal Performance of the Deoxo Chamber in the Water Electrolysis System," Energies, MDPI, vol. 16(18), pages 1-13, September.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:18:p:6685-:d:1242393
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