Thermal radiative coefficients of cylindrically and spherically shaped soot particles and soot agglomerates
(2004) In Heat and Mass Transfer 41(1). p.12-22- Abstract
- Simple and computer attractive models for calculating radiation properties are still needed. This paper gives correlations for the Planck and Rosseland means of the extinction and scattering coefficients for both cylindrically and spherically shaped soot particles. The means are valid for temperatures between 400 and 2400 K and particle radii between 0.001 and 0.5 mum. The errors of these means are less than 1%. The Planck mean asymmetry ( g) factors for cylindrically and spherically shaped soot particles are also given in order to be able to calculate their effective ( transport) properties. The RDG-PFA (Rayleigh-Debye-Gans polydisperse fractal aggregates) theory has been used for creating the correlations of the effective Planck and... (More)
- Simple and computer attractive models for calculating radiation properties are still needed. This paper gives correlations for the Planck and Rosseland means of the extinction and scattering coefficients for both cylindrically and spherically shaped soot particles. The means are valid for temperatures between 400 and 2400 K and particle radii between 0.001 and 0.5 mum. The errors of these means are less than 1%. The Planck mean asymmetry ( g) factors for cylindrically and spherically shaped soot particles are also given in order to be able to calculate their effective ( transport) properties. The RDG-PFA (Rayleigh-Debye-Gans polydisperse fractal aggregates) theory has been used for creating the correlations of the effective Planck and Rosseland means of the extinction and scattering coefficients of the soot agglomerates. The means of the agglomerates are valid for temperatures between 400 and 2400 K and primary particle diameters between 0.01 and 0.07 mum. The extinction coefficient of the agglomerated soot lies between that of spherical and cylindrical soot particles. A 3D test case, using the discrete ordinates method of order 8 (DOM S8), shows that the scattering of the agglomerates is of very little importance, as it comes to the temperatures and wall heat fluxes. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/260961
- author
- Nilsson, Thomas LU and Sundén, Bengt LU
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Heat and Mass Transfer
- volume
- 41
- issue
- 1
- pages
- 12 - 22
- publisher
- Springer
- external identifiers
-
- wos:000225229300003
- scopus:10844243139
- ISSN
- 1432-1181
- DOI
- 10.1007/s00231-004-0519-3
- language
- English
- LU publication?
- yes
- id
- 433b5b52-59d3-4b94-a5c5-b7f0b02801c7 (old id 260961)
- date added to LUP
- 2016-04-01 11:58:16
- date last changed
- 2022-01-26 20:55:05
@article{433b5b52-59d3-4b94-a5c5-b7f0b02801c7,
abstract = {{Simple and computer attractive models for calculating radiation properties are still needed. This paper gives correlations for the Planck and Rosseland means of the extinction and scattering coefficients for both cylindrically and spherically shaped soot particles. The means are valid for temperatures between 400 and 2400 K and particle radii between 0.001 and 0.5 mum. The errors of these means are less than 1%. The Planck mean asymmetry ( g) factors for cylindrically and spherically shaped soot particles are also given in order to be able to calculate their effective ( transport) properties. The RDG-PFA (Rayleigh-Debye-Gans polydisperse fractal aggregates) theory has been used for creating the correlations of the effective Planck and Rosseland means of the extinction and scattering coefficients of the soot agglomerates. The means of the agglomerates are valid for temperatures between 400 and 2400 K and primary particle diameters between 0.01 and 0.07 mum. The extinction coefficient of the agglomerated soot lies between that of spherical and cylindrical soot particles. A 3D test case, using the discrete ordinates method of order 8 (DOM S8), shows that the scattering of the agglomerates is of very little importance, as it comes to the temperatures and wall heat fluxes.}},
author = {{Nilsson, Thomas and Sundén, Bengt}},
issn = {{1432-1181}},
language = {{eng}},
number = {{1}},
pages = {{12--22}},
publisher = {{Springer}},
series = {{Heat and Mass Transfer}},
title = {{Thermal radiative coefficients of cylindrically and spherically shaped soot particles and soot agglomerates}},
url = {{http://dx.doi.org/10.1007/s00231-004-0519-3}},
doi = {{10.1007/s00231-004-0519-3}},
volume = {{41}},
year = {{2004}},
}