The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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Study on Water / Energy / Mutual-changing Technology by RO/PRO Process

RO/PRO 공정에 의한 물/에너지/상호변환기술에 관한 연구

  • 최영권 (국민대학교 건설시스템공학과) ;
  • 윤택근 (국민대학교 건설시스템공학과) ;
  • 손진식 (국민대학교 건설시스템공학과) ;
  • 이상호 (국민대학교 건설시스템공학과) ;
  • 최준석 (한국건설기술연구원)
  • Received : 2012.10.19
  • Accepted : 2012.01.09
  • Published : 2013.02.01
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Abstract

Water is an integral part of energy production because it is used directly in many power generation systems such as hydroelectric power plants and thermoelectric power plants. Water is also used extensively in energy-resource extraction, oil, natural gas, and alternative fuels refining and processing. Recently, osmotic power systems using seawater and freshwater has been also investigated to produce electricity in a sustainable way. This study focused on the use of RO and PRO for the mutual conversion of water and energy. This system allows the production of water from seawater if there is not enough water. It can also generate electricity from salinity gradient of brine water and fresh water if there is not enough energy. To demonstrate the feasibility of this technology, a set of laboratory-scale experiments were carried out using a specially-designed RO/PRO system. The efficiency of energy conversion was theoretically estimated based on the results from the experiments. The results indicated that water and energy could be easily converted using a single device. Nevertheless, a lack of optimum membrane for this purpose was identified as a major barrier for practical application.

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References

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