Journal of the Korean Society for Marine Environment & Energy (한국해양환경ㆍ에너지학회지)

The Korean Society for Marine Environment and Energy (한국해양환경•에너지학회)
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Comprehensive Assessment of the Utilization System for Marine Biomass Resources Using Exergy Flows

엑서지 흐름을 이용한 해양 생물체 자원 이용 시스템의 포괄적인 평가

  • Kuroda, Kana (Department of Marine System Engineering, Osaka Prefecture University) ;
  • Nakatani, Naoki (Department of Marine System Engineering, Osaka Prefecture University) ;
  • Otsuka, Koji (Department of Marine System Engineering, Osaka Prefecture University)
  • Received : 2012.03.02
  • Accepted : 2012.05.18
  • Published : 2012.05.25
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Abstract

In recent years, serious environmental problems occur in coastal area due to high pollution loads from human activity in land. Marine biomass utilization system therefore has been proposed to prompt material circulation between land and sea. Comprehensive assessment is necessary to determine that the proposed system is suitable and sustainable. This study introduces thermodynamic concept exergy, which expresses energy quality, to describe material and energy flowing in the material circulation system. This study presents material, energy and exergy flows in the material circulation system at Sakai city located in the middle of Osaka in Japan. It is found that exergy helps a better understanding of what is a key role is in exergy-efficient material circulation system.

최근들어 육상의 인간 활동에 의한 다량의 오염물질 부하에 기인하여 연안에서 심각한 환경 문제가 발생하고 있다. 따라서 해양 생물체 이용 시스템이 육지와 해양간의 물질 순환을 시도하기 위하여 제안되었다. 포괄적인 평가는 제안된 시스템이 적절하고 지속가능한지를 밝힐 필요가 있다. 본 연구는 에너지의 질을 표현하고, 물질 순환 시스템에서 흐르는 물질과 에너지를 묘사하는 열역학적 개념의 엑서지를 도입하였다. 본 연구는 일본 오사카 중부에 위치한 사카이시의 물질 순환 시스템 내에서 물질, 에너지, 그리고 엑서지 흐름들을 제공한다. 엑서지는 엑서지 효율적인 물질 순환 시스템 내에서 무엇이 주요 역할인지 잘 이해하는데 도움을 주는 것으로 밝혀졌다.

Keywords

References

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