Media

HOME> Media > Notices

KIER Identified ion transfer principles of marine salinity gradient power generation technology

  • Date 2019-09-09
    Writer 관리자 Views 3,733

■ Dr. Kim Han-ki of Korea Institute of Energy Research (President Kwak Byong-sung) Jeju Global Research Center developed a mathematical analysis model that can identify the ion transfer principle of marine salinity gradient power generation technology, and the result of the researcher has been published in  'Water Research,' which is the top authority in the field of water resources.*

* Water Research: Number 1 international journal in the field of water resources (published by Elsevier, SCI IF 7.051)


□ Marine salinity gradient power generation method produces electric energy using the difference in salt concentration between seawater and fresh water, and has a high energy potential, and therefore, the technology development for commercialization is actively progressing.


□ The reverse electrodialysis method is a representative marine salinity gradient power generation technology, and it converts energy obtained from ions contained in seawater as it moves through an ion exchange membrane to electricity. Recently, key technologies such as pore-filled ion-exchange membranes have been newly developed, but it is difficult to accurately analyze the performance of the ion-transfer membranes of various ion-exchange membranes with existing mathematical analysis model. 


■ To overcome this, the researchers successfully introduced the concept of "Conductive Traveling Length (CTL)" into existing mathematical analytical model to identify the principle of ion transfer in ion-exchange membranes.


■ Kim Han-ki, a senior researcher at the Korea Institute of Energy Research and the main author of the research paper said, “Based on the development of analytical modeling, the design and performance prediction of commercialized reverse electrodialysis equipment can be expected and can accelerate development of the technology. It is expected to contribute greatly to the development of localization technology for materials and components such as ion exchange membranes and stacks.”


□ Meanwhile, Jeju Global Research Center of Korea Institute of Energy Research has completed localization of the pore-filled ion exchange membrane and succeeded in developing the reverse electrodialysis equipment. The research team is currently leading the research for commercialization of marine salinity gradient power generation including the research on “Development of salinity gradient power generation technology for building electric charging infrastructure.”

페이지 맨위로 이동