Soot particle aerosol dynamics at high pressure

✍ Scribed by Stephen J. Harris; Ian M. Kennedy

• Book ID: 103040399
• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 394 KB
• Volume: 78
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(89)90026-6

✦ Synopsis

We have used detailed calculations to analyze the coagulation dynamics of a soo~ aerosol at high pressures (20 and 50 arm). We f'uKl that the soot size distribution is altered compared to lower-pressure conditions because the mean free path at high pressures is reduced to the point that the particles are similar in size to the mean free path. At lower pressures the form of the size distribution becomes constant ("self-preserving") in time, allowing optical measurements to be easily interpreted. However, we find that at pressures above about 5 arm the shape of the size distribution continually changes. As a result, proper and accurate interpretation of optical data at high pressures will be more difficult than at lower pressures.