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RISS 인기검색어
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- 저자 : 배양일(Yang-Il Pae) (검색결과 2 건)
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전기가열 튜브로를 이용한 나노/서브마이크론 입자의 발생
지준호,배양일,황정호,배귀남,Ji, Jun-Ho,Pae, Yang-Il,Hwang, Jung-Ho,Bae, Gwi-Nam 대한기계학회 2003 大韓機械學會論文集B Vol.27 No.12
Aerosol generator using an electrically heated tube furnace is a stable apparatus to supply nanometer sized aerosols by using the evaporation and condensation processes. Using this method, we can generate highly concentrated polydisperse aerosols with relatively narrow size distribution. In this work, characteristics of particle size distribution, generated from a tube furnace, were experimentally investigated. We evaluated effects of several operation parameters on particle generation: temperature in the tube furnace, air flow rates through the tube, size of boat containing solid sodium chloride(NaCl). As the temperature increased, the geometric mean diameter increased and the total number concentration also increased. Dilution with air affected the size distribution of the particles due to coagulation. A smaller sized boat, which has small surface area to contact with air, brings smaller particles of narrow size distribution in comparison of that of a larger boat. Finally, we changed the electrical mobility diameter of aggregate sodium chloride particles by varying relative humidity of dilution air, and obtained non-aggregate sodium chloride particles, which are easy to generate exact monodisperse particles.
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전기가열 튜브로에서 발생된 마이크로/나노 NaCI 입자의 크기분포 특성
지준호(Jun-Ho Ji),배양일(Yang-Il Pae),황정호(Jungho Hwang),배귀남(Gwi-Nam Bae) 대한기계학회 2002 대한기계학회 춘추학술대회 Vol.2002 No.5
Aerosol generator using tube furnace is a stable method to supply micro/nano meter sized aerosols from the evaporation and condensation process. Using this method. we can generate highly concentrated poly-disperse aerosols with relatively narrow size distribution. In this work, characteristics of particle size distribution generated from tube furnace was experimentally investigated for the effects on particle generation of temperature in tube furnace. flow rates through tube, size of boat including solid sodium chloride (NaCI). Temperature of tube furnace is very important to obtain particle size distribution we want. High temperature in furnace brings larger particles and higher number concentration. Smaller sized boat, which has small surface area to contact with air, brings smaller particles and narrow size distribution in comparison of that of large boat. An electrically heated tube furnace can be applied to generate high concentrated micro/nano meter sized aerosol and its stable generation characteristics is suitable to a long-term experiment.
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