Influence of turbulent flow characteristics on flame behaviour in diffuser combustors

Name: Influence of turbulent flow characteristics on flame behaviour in diffuser combustors
Author: Nazzal, Ibrahim Thamer, Ertunç, Özgür

İsim	Influence of turbulent flow characteristics on flame behaviour in diffuser combustors
Yazar	Nazzal, Ibrahim Thamer, Ertunç, Özgür
Basım Tarihi:	2019-03-01
Basım Yeri	- Elsevier
Konu	Diffuser combustor, Taylor-scale Reynolds number, Turbulent premixed flame
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	0360-5442
Kayıt Numarası	2e672f34-07b4-4879-899d-200794fff684
Lokasyon	Mechanical Engineering
Tarih	2019-03-01
Notlar	Ozyegin University in Istanbul Turkey ; Tikrit University in Tikrit, Iraq ; TÜBİTAK
Örnek Metin	The influence of turbulence on flame location in a diffuser-type combustor is the focus of this study. Two types of diffuser combustors were selected to study the influence of turbulence intensity and length scale on flame location. The first combustor was a cylindrical diffuser, and the second combustor had a conical insert As turbulence intensity and length scale determine Taylor-scale Reynolds numbers, this parametric study also explored the effects of the latter. Flame moved towards the inlet of the diffuser with the increase in turbulence intensity and length scale in cases with and without a conical insert. At a high turbulent length scale, the flame rapidly dropped at the inlet of the diffuser with a conical insert as the turbulence intensity increased. By contrast, the flame dropped to an intermediate level for the diffuser without a conical insert. Results showed that the Taylor-scale Reynolds number is a parameter that influences flame location, as well as turbulence intensity and length scale. An increase in the Taylor-scale Reynolds number leads to the movement of flame location towards the combustor inlet. Flame drops to the inlet of the combustor at a high turbulent Taylor-scale Reynolds number.
DOI	10.1016/j.energy.2018.12.201
Cilt	170

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Influence of turbulent flow characteristics on flame behaviour in diffuser combustors

Yazar Nazzal, Ibrahim Thamer, Ertunç, Özgür

Basım Tarihi 2019-03-01

Basım Yeri - Elsevier

Konu Diffuser combustor, Taylor-scale Reynolds number, Turbulent premixed flame

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 0360-5442

Kayıt Numarası 2e672f34-07b4-4879-899d-200794fff684

Lokasyon Mechanical Engineering

Tarih 2019-03-01

Notlar Ozyegin University in Istanbul Turkey ; Tikrit University in Tikrit, Iraq ; TÜBİTAK

Örnek Metin The influence of turbulence on flame location in a diffuser-type combustor is the focus of this study. Two types of diffuser combustors were selected to study the influence of turbulence intensity and length scale on flame location. The first combustor was a cylindrical diffuser, and the second combustor had a conical insert As turbulence intensity and length scale determine Taylor-scale Reynolds numbers, this parametric study also explored the effects of the latter. Flame moved towards the inlet of the diffuser with the increase in turbulence intensity and length scale in cases with and without a conical insert. At a high turbulent length scale, the flame rapidly dropped at the inlet of the diffuser with a conical insert as the turbulence intensity increased. By contrast, the flame dropped to an intermediate level for the diffuser without a conical insert. Results showed that the Taylor-scale Reynolds number is a parameter that influences flame location, as well as turbulence intensity and length scale. An increase in the Taylor-scale Reynolds number leads to the movement of flame location towards the combustor inlet. Flame drops to the inlet of the combustor at a high turbulent Taylor-scale Reynolds number.

DOI 10.1016/j.energy.2018.12.201

Cilt 170