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차소향,신정활 대한기계학회 2020 대한기계학회 춘추학술대회 Vol.2020 No.7
PDMS(Polydtmethylsiloxane) sponges were created using 3D printing technology that is different from conventional methods. The developed PDMS sponges can be used for oil/water separation due to their own hydrophobic characteristic. In this paper, we evaluated for practical use in the environment, a larger PDMS sponge(4×4×4 cm) was produced to separate the oil from the actual seawater. In addition, the change of water contact angle at various temperatures(3~35℃) was carried out.
대형 Touch Screen Panel (TSP) 덮개 유리 성형기를 위한 다중 가열블록 (Multi-Heating Blocks) 금형의 임계높이 연구
차소향(S. H. Cha),이준경(J. K. Lee),신정훈(J. H. Shin),정동연(D. Y. Jung) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.05
Nowadays Touch Screen Panel (TSP) cover glass for mobile smart device is being developed to curved glass shape due to differentiated design requirements. In order to produce a large curved cover glass, it is necessary to design a distributed multi-heating system that heats only the local part to be molded. In this study, temperature distribution tendencies for multi (two)-heating blocks were identified with various mold thickness and two different heaters distances. The heat transfer analysis using CFD was performed and the critical height of mold could be obtained.
대형 Touch Screen Panel (TSP) 덮개 유리 성형기를 위한 단일 가열블록 (Single-Heating Block) 금형의 임계높이 연구
차소향(S. H. Cha),이준경(J. K. Lee),신정훈(J. H. Shin),정동연(D. Y. Jung) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.05
Nowadays Touch Screen Panel (TSP) cover glass for mobile smart device is being developed to curved glass shape due to differentiated design requirements. In order to produce a large curved cover glass, it is necessary to design a distributed multi-heating system that heats only the local part to be molded. In this study, temperature distribution tendencies according to the mold thickness for single-heating block were identified before figuring out the multi system. The heat transfer analysis using CFD was performed and the critical height of mold could be obtained.
신정훈(J. H. Shin),이준경(J. K. Lee),차소향(S. H. Cha) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.05
A centrifuge is a device that uses centrifugal force to separate various components of a fluid generated by the manufacturing process for metals, glass, and plastics. This can be achieved by spinning the fluid at high speed within a container, thereby separating fluids of different densities or liquids from solids. It works by causing denser substances and particles to move outward in the radial direction. At the same time, less dense objects are displaced and move to the centre. The separation performance efficiency for vertical fan type centrifuge could be using CFD analysis. The calculations were carried out with various rotating velocities and three different particle sizes. The optimal operation conditions for vertical fan type centrifuge could be suggested.
수직형 팬 타입 원심분리장치 출구위치에 따른 분리 성능 효율 비교에 관한 연구
신정훈(J. H. Shin),이준경(J. K. Lee),차소향(S. H. Cha) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.05
A centrifuge is a device that uses centrifugal force to separate various components of a fluid generated by the manufacturing process for metals, glass, and plastics. This can be achieved by spinning the fluid at high speed within a container, thereby separating fluids of different densities or liquids from solids. It works by causing denser substances and particles to move outward in the radial direction. At the same time, less dense objects are displaced and move to the centre. This study deals with separation performance efficiency according to the outlet positions of vertical fan type centrifuge using CFD analysis. It can be found that there was a 16.3% difference in separation efficiency depending on the outlet positions of the centrifuge.