Investigation of soot formation and agglomeration in ethylene/air jet diffusion flame with rank correlated SLW model

Name: Investigation of soot formation and agglomeration in ethylene/air jet diffusion flame with rank correlated SLW model
Author: Menguc, M. Pinar, Ertunc, Ozgur, Basol, Altug M., Halvasi, Berkay

İsim	Investigation of soot formation and agglomeration in ethylene/air jet diffusion flame with rank correlated SLW model
Yazar	Menguc, M. Pinar, Ertunc, Ozgur, Basol, Altug M., Halvasi, Berkay
Basım Tarihi:	2024-10
Basım Yeri	- Elsevier
Konu	Soot aggregate, Soot radiation, RC-SLW, WSGG
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	0022-4073
Kayıt Numarası	47917e39-3fbb-4395-8954-6a849bcc709b
Lokasyon	Mechanical Engineering
Tarih	2024-10
Notlar	TÜBİTAK
Örnek Metin	Effect of radiation transfer is significant part of the overall heat transfer mechanism in sooting flames. The interaction between radiation transfer and soot formation considerably affects the combustion regime and the system efficiency. Spectral radiation models that account for the radiative effects of sooting flames need to be explored in detail to understand this phenomenon. This study numerically investigates the interaction between the radiation and soot formation in a sooting jet diffusion flame. In this regard, a rank correlated spectral linebased weighted sum of gray gases (RC-SLW) global model is implemented in Ansys Fluent and used for the radiation modeling of a jet diffusion flame and results were compared with the domain-based single gray gas weighted sum of gray gases (WSGG) model in Ansys Fluent RC-SLW model, including ethylene and acetylene flame radiation, showing considerable improvement in predicting the soot volume fraction compared to the domain-based single gray gas weighted sum of gray gases (WSGG) model available in Ansys Fluent. Increasing the number of gray gas bins in the RC-SLW model from 5 to 22 reduces the error in the maximum soot volume fraction from 30 % to 1 %. It was found that the effect of ethylene and acetylene radiation in the RC-SLW model has a minor effect on soot formation. Simulations without the effect of ethylene and acetylene radiation in the RC-SLW model underpredict the maximum soot volume fraction by 5 %. In addition, the effect of different possibilities of agglomeration of soot particles on the generated soot volume fraction was also investigated. Results showed that change of absorption coefficient due to change of soot agglomeration size affects maximum soot volume fraction by 6 %.
DOI	10.1016/j.jqsrt.2024.109068
Cilt	325

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Investigation of soot formation and agglomeration in ethylene/air jet diffusion flame with rank correlated SLW model

Yazar Menguc, M. Pinar, Ertunc, Ozgur, Basol, Altug M., Halvasi, Berkay

Basım Tarihi 2024-10

Basım Yeri - Elsevier

Konu Soot aggregate, Soot radiation, RC-SLW, WSGG

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 0022-4073

Kayıt Numarası 47917e39-3fbb-4395-8954-6a849bcc709b

Lokasyon Mechanical Engineering

Tarih 2024-10

Notlar TÜBİTAK

Örnek Metin Effect of radiation transfer is significant part of the overall heat transfer mechanism in sooting flames. The interaction between radiation transfer and soot formation considerably affects the combustion regime and the system efficiency. Spectral radiation models that account for the radiative effects of sooting flames need to be explored in detail to understand this phenomenon. This study numerically investigates the interaction between the radiation and soot formation in a sooting jet diffusion flame. In this regard, a rank correlated spectral linebased weighted sum of gray gases (RC-SLW) global model is implemented in Ansys Fluent and used for the radiation modeling of a jet diffusion flame and results were compared with the domain-based single gray gas weighted sum of gray gases (WSGG) model in Ansys Fluent RC-SLW model, including ethylene and acetylene flame radiation, showing considerable improvement in predicting the soot volume fraction compared to the domain-based single gray gas weighted sum of gray gases (WSGG) model available in Ansys Fluent. Increasing the number of gray gas bins in the RC-SLW model from 5 to 22 reduces the error in the maximum soot volume fraction from 30 % to 1 %. It was found that the effect of ethylene and acetylene radiation in the RC-SLW model has a minor effect on soot formation. Simulations without the effect of ethylene and acetylene radiation in the RC-SLW model underpredict the maximum soot volume fraction by 5 %. In addition, the effect of different possibilities of agglomeration of soot particles on the generated soot volume fraction was also investigated. Results showed that change of absorption coefficient due to change of soot agglomeration size affects maximum soot volume fraction by 6 %.

DOI 10.1016/j.jqsrt.2024.109068

Cilt 325