지준호 배양일 황정호 배귀남 2024-01-21T07:45:26Z 2024-01-21T07:45:26Z 2022-01-10 2003-12 1226-4881 https://pubs.kist.re.kr/handle/201004/138035 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. 대한기계학회 전기가열 튜브로를 이용한 나노/서브마이크론 입자의 발생 Generation of Nano/Submicron Particles Using an Electrically Heated Tube Furnace Article 2 대한기계학회논문집 B, v.27, no.12 대한기계학회논문집 B 27 12 kci ART000918790 Tube Furnace(튜브로) Size Distribution(크기분포) Nano Particle(나노 입자) Electrical Mobility Diameter(전기적 이동도 입경) Tube Furnace(튜브로) Size Distribution(크기분포) Nano Particle(나노 입자) Electrical Mobility Diameter(전기적 이동도 입경)