혼합효과가 DMA와 CPC를 이용한 입자분포 측정에 미치는 영향에 관한 연구
- Title
- 혼합효과가 DMA와 CPC를 이용한 입자분포 측정에 미치는 영향에 관한 연구
- Other Titles
- Study on the Influence of Mixing Effect to the Measurement of Particle Size Distribution using DMA and CPC
- Author
- 안강호
- Keywords
- Differential Mobility Analyzer(DMA, 단분산 초미세입자 분리기); Condensation Particle Counter (CPC, 응축핵 계수기); Particle Size Distribution(입자 크기 분포); Mixing Effect (혼합 효과); Accelerated Measurement (가속화된 측정법)
- Issue Date
- 2003-07
- Publisher
- 대한기계학회
- Citation
- 대한기계학회 논문집 B권, v. 27, no. 3, page. 326-333
- Abstract
- In the measurement using DMA and CPC in series, there is some time delay for particles classified in DMA to detect in CPC. During this time, the DMA time-response changes due to the velocity profile of sampling tube and the diffusion of particles in the volume that exists between the DMA exit and the detector of ultra-fine CPC. This is called mixing effect. In the accelerated measurement methods like the TSI -SMPS, the size distribution is obtained from the correlation between the time -varying electrical potential of the DMA and the corresponding particle concentrations sampled in DMA. If the DMA time -response changes during this delay time, this can cause the error of a size distribution measured by this accelerated technique. The kernel function considering this mixing effect using the residence time distribution is proposed by Russell ct al. In this study, we obtained a size distribution using this kernel to compare to the result obtained by the commercial accelerated measurement system, TSI -SMPS for verification and considered the errors that result from the mixing effect with the geometric mean diameters of originally sampled particles, using virtually calculated responses obtained with this kernel as input data.
- URI
- http://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE00530630?https://repository.hanyang.ac.kr/handle/20.500.11754/156010
- ISSN
- 1226-4881; 2288-5234
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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