Open Access

ARTICLE

Analysis of the Influence of Oxygen Enrichment in the Blast on Temperature Field and NO Generation near the Burner in Reheating Furnace

Xiaojun Li, Fuyong Su^*

School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing, 100083, China

* Corresponding Author: Fuyong Su. Email:

(This article belongs to the Special Issue: Heat and Mass Transfer in Fire)

Frontiers in Heat and Mass Transfer 2024, 22(3), 719-732. https://doi.org/10.32604/fhmt.2024.051950

Received 19 March 2024; Accepted 06 May 2024; Issue published 11 July 2024

Abstract

In order to study the effect of oxygen-enriched combustion technology on the temperature field and NO emission in the continuous heating furnace, this paper studies the oxygen-enriched combustion of a pushing steel continuous heating furnace in a domestic company. This study utilizes numerical simulation method, establishes the mathematical models of flow, combustion and NO generation combustion process in the furnace and analyzes the heat transfer process and NO generation in the furnace under different air oxygen content and different wind ratio. The research results show that with the increase of oxygen content in the air, the combustion temperature in the furnace rises significantly, and the emission concentration of NO increases. Furthermore, the NO emission concentration is related to the proportion of primary and secondary air.

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