Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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A Study on PSA Controll Strategy for Part Load Operation of a Hydrogen Generator

수소추출기의 부분부하 운전을 위한 PSA 제어전략에 대한 연구

  • SANGHO, LEE (Department of Mobility Power Research, Korea Institute of Machinery & Materials) ;
  • SEONYEOB, KIM (Department of Mobility Power Research, Korea Institute of Machinery & Materials) ;
  • YOUNG, CHOI (Department of Mobility Power Research, Korea Institute of Machinery & Materials)
  • 이상호 (한국기계연구원 모빌리티동력연구실) ;
  • 김선엽 (한국기계연구원 모빌리티동력연구실) ;
  • 최영 (한국기계연구원 모빌리티동력연구실)
  • Received : 2022.11.14
  • Accepted : 2022.12.26
  • Published : 2022.12.30
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Abstract

Fuel cell systems are being supplied to households and buildings to reduce greenhouse gases. The fuel cell systems have problems of high cost and slow startup due to fuel processors. Greenhouse gas reduction of the fuel cell systems is also limited by using natural gas. The problems can be solved by using a hydrogen generator consisting of a reformer and pressure swing adsorption (PSA). However, part load operation of the hydrogen generator is required depending on the hydrogen consumption. In this paper, PSA operation strategies are investigated for part load of the hydrogen generator. Adsorption and purge time were changed in the range of part load ratio between from 0.5 to 1.0. As adsorption time increased, hydrogen recovery increased from 29.09% to 48.34% at 0.5 of part load ratio. Hydrogen recovery and hydrogen purity were also improved by increasing adsorption and purge time. However, hydrogen recovery dramatically decreased to 35.01% at 0.5 of part load ratio.

Keywords

Acknowledgement

본 연구는 한국에너지기술평가원의 에너지기술개발사업인 "공공건물 대상 수소추출기 연계형 연료전지 안전실증(과제번호: 20203040030110)"의 지원으로 수행되었으며, 이에 감사드린다.

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