{"id":6477,"date":"2026-05-30T03:47:27","date_gmt":"2026-05-30T00:47:27","guid":{"rendered":"https:\/\/jrn.isi.gov.ua\/?page_id=6477"},"modified":"2026-06-01T15:47:31","modified_gmt":"2026-06-01T12:47:31","slug":"doi-10-52150-2522-9117-2026-40-022","status":"publish","type":"page","link":"https:\/\/jrn.isi.gov.ua\/?page_id=6477&lang=en","title":{"rendered":"DOI: 10.52150\/2522-9117-2026-40-022"},"content":{"rendered":"\n

L. P. Gres<\/strong>1<\/sup>, D. Sc. (Tech.), Professor, ORCID 0000-0002-5343-3438
O. V. Gupalo<\/strong>1,*<\/sup>, Ph. D. (Tech.), Assoc. Prof., ORCID 0000-0003-3145-9220
O. O. Yeromin<\/strong>1<\/sup>, D. Sc. (Tech.), Professor, ORCID 0000-0001-8306-578X
Ye. O. Karakash<\/strong>1<\/sup>, Ph. D. (Tech.), Assoc. Prof., ORCID 0000-0003-3833-2396
S. Ye. Sulimenko<\/strong>1<\/sup>, Ph. D. (Tech.), Assoc. Prof., ORCID 0000-0001-5755-3093
Ye. V. Peretiatko<\/strong>1<\/sup>, Master’s degree, ORCID 0009-0009-2026-2239<\/p>\n\n\n\n

1 <\/sup>Ukrainian State University of Science and Technologies<\/em>
* <\/sup>Corresponding author: o.v.gupalo@ust.edu.ua<\/em><\/p>\n\n\n\n

INVESTIGATION OF HOT BLAST TEMPERATURE VARIATION, HEAT TRANSFER, GAS DYNAMIC, AND DESIGN PARAMETERS OF BLAST FURNACE STOVES USING HIGH-EFFICIENCY CHECKERWORK SHAPES<\/h2>\n\n\n\n

Abstract. <\/strong>Improving the energy efficiency of blast furnace production remains one of the most pressing tasks, as it significantly affects the competitiveness of metallurgical products in global markets and allows for a substantial reduction in harmful emissions and minimization of the anthropogenic impact on the environment. One of the well-known and effective ways to reduce energy consumption in pig iron production is to increase the hot blast temperature, which is heated in blast furnace stoves. Improving stove designs by applying high-efficiency checkerwork shapes is a promising direction for increasing the blast temperature and saving specific coke consumption in the blast furnace process. The aim of this work is a comprehensive investigation of changes in heat transfer, gas dynamic, and design parameters of blast furnace stoves when replacing traditional checkerwork with high-efficiency counterparts. Two main options are considered: the first involves replacing the checkerwork during a major overhaul without changing the chamber volume or the structural parameters of the stove; the second option concerns stove reconstruction, where the design dimensions of the checkerwork and the stoves themselves are changed depending on the required hot blast temperature. The research content is based on numerical calculations of heat transfer parameters in the checkerwork, the temperature distribution of flue gases and the blast along the height of the checkerwork, as well as the determination of the required heating surface and changes in pressure losses of the gases flows. The research results indicate that replacing the checkerwork with a reduced channel diameter provides a substantial increase in the specific volumetric heating surface. It is shown that for the first option, replacing checkerwork with 41 mm diameter channels with 30 mm channels allows increasing the hot blast temperature by 78 \u00b0C, which contributes to a reduction in specific coke consumption by 9.0\u20139.5 kg\/t while maintaining the stove dimensions. However, this entails a 4% increase in blast furnace gas consumption for heating the stoves. The second option demonstrates that when reducing the channel diameter from 41 to 30 mm, the total heating surface increases by 12.3%, and the checkerwork height decreases by 8.36 m, thereby allowing for a reduction in the overall structural dimensions. It was established that reducing the channel diameter while increasing their quantity contributes to the growth of the heating surface but leads to a 22.3% reduction in the mass of refractories, which may exacerbate fluctuations in the blast temperature and shorten the service life between repairs of the checkerwork due to potential clogging or displacement of rows. Analysis of gas dynamic characteristics showed that, despite changes in the gases velocities, the total pressure losses in the system remain almost unchanged due to a corresponding decrease in the checkerwork height, which avoids the need for replacing the blower equipment.<\/p>\n\n\n\n

Key words: <\/strong>blast furnace stoves, checkerwork, hot blast temperature, heat transfer, energy efficiency, specific coke consumption.<\/strong><\/p>\n\n\n\n

For citation: <\/strong>Gres, L. P., Gupalo, O. V., Yeromin, O. O., Karakash, Ye. O., Sulimenko, S. Ye., & Peretiatko, Ye. V. (2026). Investigation of hot blast temperature variation, heat transfer, gas dynamic, and design parameters of blast furnace stoves using high-efficiency checkerwork shapes.<\/s> Fundamental and applied problems of ferrous metallurgy<\/em>, 40, 349-363. https:\/\/doi.org\/10.52150\/2522-9117-2026-40-022<\/a><\/p>\n\n\n\n

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\u0420\u0443\u043a\u043e\u043f\u0438\u0441 \u043d\u0430\u0434\u0456\u0439\u0448\u043e\u0432 \u0434\u043e \u0440\u0435\u0434\u0430\u043a\u0446\u0456\u0457 \/ Received 23.02.2026<\/em>
\u0420\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u043e\u0432\u0430\u043d\u043e \u0434\u043e \u0434\u0440\u0443\u043a\u0443 \/ Accepted 28.05.2026<\/em>
\u041e\u043f\u0443\u0431\u043b\u0456\u043a\u043e\u0432\u0430\u043d\u043e \/ Published 30.05.2026<\/em><\/p>\n\n\n\n

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L. P. Gres1, D. Sc. (Tech.), Professor, ORCID 0000-0002-5343-3438O. V. Gupalo1,*, Ph. D. (Tech.), Assoc. Prof., ORCID 0000-0003-3145-9220O. O. Yeromin1, D. Sc. (Tech.), Professor, ORCID 0000-0001-8306-578XYe. O. Karakash1, Ph. D. (Tech.), Assoc. Prof., ORCID 0000-0003-3833-2396S. Ye. Sulimenko1, Ph. D. (Tech.), Assoc. Prof., ORCID 0000-0001-5755-3093Ye. V. Peretiatko1, Master’s degree, ORCID 0009-0009-2026-2239 1 Ukrainian State University of Science and Technologies* Corresponding author: o.v.gupalo@ust.edu.ua INVESTIGATION OF HOT BLAST TEMPERATURE VARIATION, HEAT TRANSFER, […]<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-6477","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/6477","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6477"}],"version-history":[{"count":2,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/6477\/revisions"}],"predecessor-version":[{"id":6939,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/6477\/revisions\/6939"}],"wp:attachment":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6477"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}