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최소원,김태호,차상호,홍영택 한국공업화학회 2016 한국공업화학회 연구논문 초록집 Vol.2016 No.1
The preparation of a series of sulfonated poly(ether sulfone) copolymers (SPESs) and their applications as ion exchange membranes (IEMs) for vanadium redox flow batteries (VRFBs) have been reported. Various SPES membranes with IEC from 1.44 meq/g to 2.02 meq/g were fully characterized in terms of various physical and electrochemical properties, including dimensional variation, membrane resistance, and vanadium ion permeability. Compared to Nafion 115, the SPES membrane with an IEC of 1.71 meq/g has a higher EE (75-88 %) and CE (>98%) at test current densities form 40 and 100 mA/cm2 and significantly larger capacity retention (>99%) during the 100 charge-discharge cycles in the single cell VRFB performance test.
엑세스플로어 일체형 복사난방패널의 열성능 예측을 위한 열해석
최소원(Choi, So-Won),김광우(Kim, Kwang-Woo),여명석(Yeo, Myoung-Souk),박상훈(Park, Sang-Hoon),김동우(Kim, Dong-Woo),안민철(Ahn, Min-Chul) 대한건축학회 2013 대한건축학회논문집 Vol.29 No.3
The purpose of this study is to propose an 3-dimensional analytical model for analyzing heating performance of the access floor integrated radiant model. Proposed analytical unit model was divided into several control volumes considering material and shape of the panel components, and then thermal resistance network model is applied. The numerical analysis was carried out using finite volume method which satisfies heat balance equation. Proposed method was evaluated its suitability by comparing with the proven 3-dimensional heat transfer program and cooling plate test.