2003
DOI: 10.1080/02786820300899
|View full text |Cite
|
Sign up to set email alerts
|

A One-Dimensional Model for Coagulation, Sintering, and Surface Growth of Aerosol Agglomerates

Abstract: The size of the primary particles in aerosol agglomerates is determined in part by the interplay of surface growth, coagulation, and sintering. These processes are modelled by a one-dimensional (1-D) discrete-sectional model, DISGLOM2, which predicts the evolution of agglomerate and primary particle size distributions. DISGLOM2 is an extended version of DISGLOM (Rogak 1997), in which particles smaller than the "melting diameter" were assumed to sinter instantly while bigger particles did not sinter at all. Gra… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1
1

Citation Types

0
26
0
1

Year Published

2007
2007
2024
2024

Publication Types

Select...
9

Relationship

0
9

Authors

Journals

citations
Cited by 39 publications
(27 citation statements)
references
References 26 publications
0
26
0
1
Order By: Relevance
“…A good example is the inclusion of finite-rate sintering, which affects the formation of hard agglomerates. Sintering rates are highly dependent on the temperature field and in turbulent reacting flows, these require accurate capture/resolution (Wegner and Pratsinis 2003;Park and Rogak 2003;Heine and Pratsinis 2007;Garrick and Wang 2010). Grid-free approaches such as the probability-based, filtered density function maybe suitable in both accounting for the unresolved terms as well as removing oscillations (Colucci et al 1998;Garrick et al 1999;Givi 2006;Garmory and Mastorakos 2008).…”
Section: Discussionmentioning
confidence: 99%
“…A good example is the inclusion of finite-rate sintering, which affects the formation of hard agglomerates. Sintering rates are highly dependent on the temperature field and in turbulent reacting flows, these require accurate capture/resolution (Wegner and Pratsinis 2003;Park and Rogak 2003;Heine and Pratsinis 2007;Garrick and Wang 2010). Grid-free approaches such as the probability-based, filtered density function maybe suitable in both accounting for the unresolved terms as well as removing oscillations (Colucci et al 1998;Garrick et al 1999;Givi 2006;Garmory and Mastorakos 2008).…”
Section: Discussionmentioning
confidence: 99%
“…Particles formed in different combustion regions experience different formation and growth patterns, e.g., local equivalence ratio and residence time. The size of the primary particles and agglomerates forming in a combustion process depends on the interplay of complex formation and evolution mechanisms including nucleation, coagulation, surface growth, carbonization, oxidation, and sintering (Glassman 1988;Park and Rogak 2003;Park et al 2005;Kholghy et al 2013). Typically, surface growth and coagulation prior to carbonization lead to larger more spherical particles.…”
Section: Introductionmentioning
confidence: 99%
“…In addition to measurement errors, the discrepancy between PB-MC simulation results and experimental measurements may be due to: (1) the MC does not consider condensation and diffusional wall deposition (Park and Rogak 2003); (2) the inhomogeneity of temperature and concentration profiles is not considered, and the modeled temperature and gas velocity profiles deviate from experimental measurements; (3) the used kernel models (especially τ s ) may not be accurate for the case (Buesser et al 2011); (4) surface growth will narrow the size distribution in the initial stage, which is not included in this MC (Tsantilis and Pratsinis 2004).…”
Section: Simulation Resultsmentioning
confidence: 99%
“…They modeled the growth of both agglomerates and primary particles by two-dimensional discretesectional method (DS), considering effect of temperature on the size distribution of TiO 2 nanoparticle product. Park and Rogak (2003) used a one-dimensional model for agglomeration, gradual sintering, condensational obliteration, and diffusional wall deposition in the same aerosol reactor. In their model particles smaller than the "melting diameter" were assumed to sinter instantly while bigger particles did not sinter at all.…”
Section: Introductionmentioning
confidence: 99%