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이형욱(Hyung Wook Yi),이용문(Yong Moon Lee),신보성(Bo Sung Shin),이태구(Tae Gu Lee),강명창(Myung Chang Kang) Korean Society for Precision Engineering 2016 한국정밀공학회지 Vol.33 No.5
The solenoid valve is used widely across various industries; however, solenoid valves for use in high-temperature environments have to be highly specified, such as those used in thermal power plants and steel mills. As such, we have developed a solenoid valve, using an already developed solenoid, to allow for more specific use. In this type of development method, use of 3D printing is very effective, allowing for a reduction in errors in design and production. This study includes a mathematical model of the solenoid valve. Then, the simulation from the mathematical model was performed using the AMESim (Advanced Modeling Environment for Simulation of Engineering Systems). We made a prototype valve using the simulation results and also measured the flow rate and dynamic performance.
미니 하이드로 사이클론 분리기의 이중배열을 통한 성능특성 평가
권제영(Je-Young Kwon),김승경(Seung-Kyung Kim),홍준규(Jun-Gyu Hong),이형욱(Hyung-Wook Yi),강명창(Myungchang Kang) 한국기계가공학회 2021 한국기계가공학회지 Vol.20 No.11
A cyclone is a dust-separating mechanism that works on the principle of centrifugal force. The performance of a cyclone is evaluated using pressure loss and collection efficiency. A multi-cyclone arrangement is used to improve the collection efficiency within a limited area. In this study, experiments and numerical analyses were conducted on a dual arrangement of mini-hydrocyclone separators, which was fabricated using 3D printing. The experiment was performed at an inlet flow rate of 0.7 m/s, and alumina powder with a particle size of 0.5, 15, and 50 μm. ANSYS FLUENT, was used for the numerical analysis. The reliability of the numerical analysis was verified through a comparison with the experimental results. The errors in the experiment and numerical analysis were confirmed to be 2% at the outlet flow rate.