Numerical study on characteristics of combustion and pollutant formation in a reheating furnace

Scientific paper - Original scientific paper

• Author: Fengsheng Qi
• Author: Zisong Wang
• Author: Baokuan Li
• Author: Zhu He
• Author: Jakov Baleta
• Author: Milan Vujanovic
• Author's institution: University of Zagreb; Faculty of Metallurgy; (Department of Mechanical Metallurgy); (Laboratory of Thermal Technics and Mechanical Engineering)
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Metallurgy; Mechanical Metallurgy
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Process Energy Engineering

Abstract (english)

Energy consumption of fuel-fired industrial furnace accounts for about 23% of the national total energy consumption every year in China. Meanwhile, the reduction of combustion-generated pollutants in furnace has become very important due to the stringent environment laws and policy introduced in the recent years. It is therefore a great challenge for the researchers to simultaneously enhance the fuel efficiency of the furnace while controlling the pollution emission. In this study, a transient three- dimensional mathematical combustion model coupled with heat transfer and pollution formation model of a walking-beam-type reheating furnace has been developed to simulate the essential combustion, and pollution distribution in the furnace. Based on this model, considering nitrogen oxides formation mechanism, sensitivity study has been carried out to investigate the influence of fuel flow rate, air-fuel ratio on the resultant concentration of nitrogen oxides in the flue gas. The results of present study provide valuable information for improving the thermal efficiency and pollutant control of reheating furnace.

• Keywords (english): energy consumption; reheating furnace; combustion; pollutant formation; nitrogen oxides emissions
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Thermal science
• Numbering: vol. 22, no. 5, pp. 2103-2112
• p-ISSN: 0354-9836
• DOI: https://doi.org/10.2298/tsci180118277q
• URN:NBN: urn:nbn:hr:115:798519
• Publication: 2018
• Document URL: http://bib.irb.hr/958775
• Type of resource: Text
• Access conditions: Open access
• Created on: 2019-10-23 13:58:47