화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2013년 가을 (10/23 ~ 10/25, 대구 EXCO)
권호 19권 2호, p.2256
발표분야 환경
제목 Impact of temperature on the performance of hybrid MD-PRO system
초록 Membrane distillation (MD) and pressure retarded osmosis (PRO) are promising membrane-based processes to overcome water and energy shortage. MD produces water by temperature difference while PRO generates power by osmotic pressure difference between two solutions. Since MD and PRO processes have benefits and drawbacks, their combination (referred to as MD-PRO hybrid system) will be beneficial in terms of total energy consumption and water production. In MD-PRO hybrid system, heated MD feed solution flows into the PRO draw side after passing through the MD membrane module that causes the temperature-increase of the PRO draw solution. Since PRO is normally operated at 25℃, increased temperature of the draw solution may affect the following PRO performance. Therefore the objective of this study is to evaluate the PRO performance according to the temperature variation of PRO draw solution. The cost-effective operating condition in terms of temperature and the use of heat exchanger are also considered.
Acknowledgements : Supported by a Basic Research Projects in High-tech Industrial Technology grant by GIST in 2013.
저자 이정민, 김지혜, 김준하
소속 광주과학기술원
키워드 Membrane distillation (MD); Pressure retarded osmosis (PRO); Hybrid MD-PRO system
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