Experimental investigation on temperature field and heat transfer distribution of a slot burner methane/air flame impinging on a curved surface

被引：21

作者：

Yousefi-Asli, Vahid ^{[1
]}

Houshfar, Ehsan ^{[1
]}

Beygi-Khosroshahi, Farnaz ^{[1
]}

Ashjaee, Mehdi ^{[1
]}

机构：

[1] Univ Tehran, Sch Mech Engn, Coll Engn, POB 11155-4563, Tehran, Iran

来源：

APPLIED THERMAL ENGINEERING | 2018年 / 129卷

关键词：

Impinging flame; Temperature field; Heat transfer; Curved surface; Mach-Zehnder interferometry; MACH-ZEHNDER INTERFEROMETRY; AIR-JET; GAS; PLATE;

D O I：

10.1016/j.applthermaleng.2017.10.084

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Experiments have been performed to obtain the temperature field and Nusselt number for a methane/air slot flame impinging into a cylindrical surface. Mach-Zehnder interferometry was used to determine the temperature. The effects of operation conditions including Reynolds number, equivalence ratio, distance between the burner and impingement surface, and the surface diameter were investigated. Results show that by decreasing the diameter of impingement surface, maximum heat flux increases and the location of maximum heat flux moves from the stagnation point towards the wall jet region. Increasing the Reynolds number creates a considerable heat flux both in the stagnation and the wall jet region. Equivalence ratio is the most effective parameter on the maximum flame temperature. Reducing the distance between the burner and impingement surface increases the heat flux, but, if the impingement surface is located through the inner reaction zone of flame, the heat flux decreases around the stagnation region. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：761 / 771

页数：11

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