DECARBONIZATION OF ENVIRONMENT BY OPERATION THE HIGH-TEMPERATURE FURNACES WITH ACCOUNT OF RADIATIVE HEAT TRANSFER WITHIN COMBUSTION CHAMBER
高温炉の運転による環境脱炭素化：燃焼室内の放射熱伝達を考慮して (AI 翻訳)
B.S. Soroka, V.O. Zgurskyi, N. Striugas
🤖 gxceed AI 要約
日本語
本論文は、ガラス溶解炉などの高温炉において天然ガスを水素またはH2混合燃料に置換する際の脱炭素化の課題を分析する。水素燃焼はCO2排出を削減するが、透明な燃焼生成物による放射熱伝達の低下がエネルギー消費を増加させる可能性がある。12種類の燃料・酸化剤混合物の灰色放射率を温度と光学厚さの関数として計算する方法論を開発し、一般化した依存性を示す。
English
This paper analyzes the decarbonization of high-temperature glass melting furnaces by substituting natural gas with hydrogen or H2 blends. It shows that while hydrogen reduces CO2 emissions, its transparent combustion products lower radiative heat transfer, potentially increasing energy consumption. A methodology is developed to compute gray emissivity of combustion products for 12 fuel-oxidizer mixtures as a function of temperature and optical thickness.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本のガラス産業はエネルギー多消費型であり、水素転換による脱炭素化が注目されるが、本論文は放射熱伝達の低下という実務上の課題を定量的に示す。SSBJ開示やGXリーグにおける排出削減計画の策定において、プロセス転換のトレードオフを理解するために有用。
In the global GX context
This paper provides quantitative insight into the efficiency trade-offs of hydrogen combustion in high-temperature industrial furnaces, relevant for global transition finance and ISSB/TCFD-aligned disclosure of transition risks. It highlights that decarbonization via fuel switching may have hidden energy costs due to radiative heat transfer changes.
👥 読者別の含意
🔬研究者:Provides a quantitative method for evaluating emissivity of hydrogen combustion products, useful for furnace design and energy modeling in industrial decarbonization.
🏢実務担当者:Glass manufacturing engineers can use the emissivity data and methodology to assess the feasibility and energy impact of hydrogen retrofitting in furnaces.
📄 Abstract（原文）
The problem of decarbonization of the environment accompanying the substitution of fossil fuels (natural gas) for hydrogen or the blends with H2 in application to high-temperature (particularly — glass melting furnaces) using the strong combustion air preheating (up to 1600 K), causes the contradictory consequences: the positive impact, stipulated by a decrease of greenhouse gases (CO2) formation, combines with negative effect — lowering the resulting radiation of transparent combustion products of hydrogen compared with emissivity εg of combustion products by NG combustion in glass melting furnaces. The combustion products’ emissivity for H2O exceeds εg for CO2 and of natural gas combustion product, in case of high temperature processes within the glass melting furnaces filled with luminous non-premixed NG-oxidizer’s flame(s) located near the melt, the necessary energy consumption becomes increased by hydrogen premixing to fuel. The proper methodology has advanced, realized and testified by calculation of “grey” emissivity for combustion products (alternative fuel-oxidizer mixtures) of 12 compositions compared with that for some hydrocarbons. An analysis of the “grey” (integral) emissivity ε = εg of combustion products of gas fuels, based upon CH4 and H2 reactions with an air or O2 as an oxidiser, has been carried out. The results present a generalization the dependences of εg on combustion products’ temperature TCP Î {923; 1973 K} and the optical thickness of emitting layer: pL Î {0.5; 2.0 m·bar}. Bibl. 48, Tab. 4, Fig. 9.
🔗 Provenance — このレコードを発見したソース
- crossref https://doi.org/10.33070/etars.2.2026.01first seen 2026-07-13 07:52:46
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