EFFICIENCY ENHANCEMENT IN THE RECUPERATOR OF A REHEATING FURNACE
DOI:
https://doi.org/10.20319/stra.2025.101110Keywords:
Waste Heat Recovery, Recuperator, Energy Efficiency, Emission Reduction, Steel Industry, Reheating FurnaceAbstract
In today’s world, increasing environmental concerns have intensified the focus on renewable energy sources and effective energy management practices. In industrial processes, particularly in areas with high energy consumption, waste heat recovery has become one of the primary research topics. Reheating furnaces used in the steel industry reach extremely high temperatures during rolling operations, with approximately 50–70% of this energy being released directly into the atmosphere through flue gases. In this context, flue gases stand out as one of the most significant sources of waste heat. The aim of this study is to recover the waste energy contained in the flue gases emitted to the atmosphere from a slab reheating furnace used in the hot rolling process of the iron and steel industry by means of a recuperator. Through the newly implemented recuperator replacement, 31,274.93 kW of energy recovery was achieved and 6.32 tons of carbon emissions were reduced. Consequently, the amount of energy released into the atmosphere was decreased, and a significant reduction in natural gas consumption of the furnace was obtained.
References
A cold model study on powder hold-up and pressure drop. Journal of Energy Storage, 75, 109735.
https://doi.org/10.1016/j.est.2023.109735
Chakravarty, K., Mondal, S., & Kundu, R. (2024). Improving the energy efficiency in a walking hearth type reheating furnace by energy balance method and optimizing the resources.
https://doi.org/10.1016/j.meanee.2024.100010
Ertem, G., Çelik, B., & Yeşilyurt, S. (t.y.). Endüstriyel tav fırınlarında ısı denkligi hesaplamaları ve enerji verimliliğinin belirlenmesi. IV. Ege Enerji Sempozyumu, İzmir
Eyidoğan, M., Kaya, D., Dursun, Ş., & Taylan, O. (2014). Endüstriyel tav fırınlarında enerji tasarrufu ve emisyon azaltım fırsatları. Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi, 29(4), 735–743.
Jouhara, H., Khordehgah, N., Almahmoud, S., Delpech, B., Chauhan, A., & Tassou, S. A. (2018). Waste heat recovery technologies and applications. Thermal Science and Engineering Progress, 6, 268–289.
https://doi.org/10.1016/j.tsep.2018.04.017
Manatura, K., & Tangtrakul, M. (2010). A study of specific energy consumption in reheating furnace using regenerative burners combined with recuperator. Kasetsart Journal of Natural Science, 44(5), 1005–1014.
Measurement: Energy, 3, 100010.
Ravindran, R. V., Hewitt, N., Huang, M. J., Cotter, D., & Wilson, C. (2024). Experimental investigation of a small-scale reversible high-temperature heat pump − organic Rankine cycle system for industrial waste heat recovery. Applied Thermal Engineering, 257(Part A), 1-15.
https://doi.org/10.1016/j.applthermaleng.2024.124237
Reddy, C. C. S., Naidu, S. V., & Rangaiah, G. P. (2013). Waste heat recovery methods and technologies. Chemical Engineering. 120(1), 28–38.
Schwarzmayr, P., Birkelbach, F., Walter, H., Javernik, F., Schwaiger, M., & Hofmann, R. (2023). Packed bed thermal energy storage for waste heat recovery in the iron and steel industry:
Downloads
Published
How to Cite
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Copyright of Published Articles
Author(s) retain the article copyright and publishing rights without any restrictions.
All published work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
