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

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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An Experimental Study on the Possibility of Biogas Reforming using the Waste Heat of a Small-Sized Gas Engine Generator

소형 가스엔진 발전기의 배기가스 폐열을 이용한 바이오가스 개질 가능성에 관한 실험적 연구

  • Cha, Hyo-Seok (Department of Mechanical Engineering, Grad. School of Yonsei Univ.) ;
  • Kim, Tae-Soo (Department of Mechanical Engineering, Grad. School of Yonsei Univ.) ;
  • Eom, Tae-Jun (Department of Mechanical Engineering, Grad. School of Yonsei Univ.) ;
  • Jung, Choong-Soo (Department of Mechanical Engineering, Grad. School of Yonsei Univ.) ;
  • Chun, Kwang-Min (School of Mechanical Engineering, Yonsei Univ.) ;
  • Song, Soon-Ho (School of Mechanical Engineering, Yonsei Univ.)
  • 차효석 (연세대학교 대학원 기계공학과) ;
  • 김태수 (연세대학교 대학원 기계공학과) ;
  • 엄태준 (연세대학교 대학원 기계공학과) ;
  • 정충수 (연세대학교 대학원 기계공학과) ;
  • 전광민 (연세대학교 기계공학부) ;
  • 송순호 (연세대학교 기계공학부)
  • Received : 2011.10.25
  • Accepted : 2012.06.22
  • Published : 2012.06.30
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Abstract

This study has been carried out the experiment for the possibility of biogas reforming using waste heat. The source of this waste heat is the exhaust gas from a small-sized gas engine generator. For recovering the waste heat, Two-stage heat exchanger is manufactured. The two-stage heat exchanger is composed of a heat exchanger for the exhaust gas and a heat exchanger for the water. This two-stage heat exchanger is used for reforming the biogas by means of on-site hydrogen production at the small-sized gas engine generator. The two-stage heat exchanger is coupled with the biogas reformer which is a kind of catalytic reformer. To confirm a heat recovery efficiency of the two-stage heat exchanger, temperature differences of inlet and outlet locations are measured. Also, the variations of syngas concentrations with various biogas flow rates are investigated. As a result using manufactured two-stage heat exchanger, the biogas can be reformed from waste heat recovery. This experiment suggests that the exhaust gas heat exchanger is available for reforming the biogas.

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References

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