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Development of ammonia burner for simultaneous high-intensity combustion and NOx reduction

Research Project

Project/Area Number 19K04219
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 19020:Thermal engineering-related
Research InstitutionKagawa University

Principal Investigator

Okumura Yukihiko  香川大学, 創造工学部, 教授 (80262971)

Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2023: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2022: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2021: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords新燃料 / アンモニア / 高負荷燃焼 / NOx / CO2フリー燃焼 / 窒素酸化物 / サーマルNOx / フュエルNOx / オフガス / 燃焼速度 / 水素キャリア / 同軸噴流拡散火炎 / 低NOxバーナー / 乱流火炎 / 水素保炎 / 温暖化防止 / NOx 低減 / 乱流燃焼
Outline of Research at the Start

アンモニア(NH3)はカロリーベースの高い燃料(383 kJ/mol-NH3)でありながら,その燃焼速度が低いために燃料としての利用度は低い.加えて,従来の石油系由来の炭化水素系ガス燃料と比較して,燃焼機構は今なお不明な部分が多い.本研究では,新規燃料かつ難燃性であることを克服し,新しい構想下でのバーナー開発に取り組んでおり,アンモニアの高負荷燃焼(単位体積当たりの発熱量の増加)およびクリーン燃焼を実現化する.高負荷燃焼により,ボイラーのコンパクト化がはかれるとともに,燃焼設備の最小化,伝熱効率の増加,および省エネ技術に直接的に貢献したい.

Outline of Final Research Achievements

The main cause of global warming is carbon dioxide generated by the combustion of fossil fuels. The Japanese government is aiming to achieve decarbonization by 2050 and is focusing on the new fuel ammonia (383 kJ/mol-NH3). However, compared to conventional petroleum-derived hydrocarbon fuels, there are still many unknowns about its combustion mechanism. In this study, we aimed to clarify the combustion mechanism of the new-fuel ammonia and achieve high-load combustion (increasing the amount of heat generation per unit volume). This high-load combustion will enable to be made more compact in boiler design, and also contributes directly to minimizing the size of heat transfer equipment, increasing heat transfer efficiency, and energy-saving technology. We had conducted on developing a burner under a new concept.

Academic Significance and Societal Importance of the Research Achievements

工場ではアンモニアを水素用途のみではなく,直接的に熱利用(燃料:エネルギーキャリア)として併用利用することが実用的観点から望まれる.アンモニアはCO2を排出しない,すなわち地球温暖化ガス(CO2)の排出がゼロの燃料である.しかしながら,アンモニアの層流燃焼速度は7.0cm/s以下であり,従来の石油系燃料と比較すると低いために安定燃焼が困難である.かつ,強制的に燃焼させると大量の窒素酸化物(NOx)を生成する.そこで本研究では,この難燃性のNH3を安定に高負荷燃焼させ,かつNOxを同時低減できるバーナーを開発した.加えて,NH3火炎(新燃料)からのNOx低減のメカニズムを学術的に明らかにした.

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (34 results)

All 2023 2022 2021 2020 Other

All Journal Article (6 results) (of which Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (24 results) (of which Int'l Joint Research: 9 results,  Invited: 1 results) Book (1 results) Remarks (2 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] アンモニアバーナーの開発とボイラーの基礎伝熱特性の解明2023

    • Author(s)
      奥村幸彦
    • Journal Title

      ボイラ研究(Journal of Japan Boiler Association))

      Volume: 442 Pages: 21-26

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Combustion characteristic of NH3/H2/N2 premixed flame2023

    • Author(s)
      Yukihiko Okumura, Tomohiro Tsubota, Kenta Kikuchi, Noritoshi Yagawa, Tomohiro Matsunami
    • Journal Title

      Proc. 33rd International Symposium on Transport Phenomena

      Volume: 1 Pages: 1-25

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Flame Structure and Reaction Analysis for Ammonia Turbulent Burner with Hydrogen Flame Stabilizer2022

    • Author(s)
      奥村幸彦,坪田知大,松田直也,堀 司,赤松史光
    • Journal Title

      Journal of the Combustion Society of Japan

      Volume: 64 Issue: 208 Pages: 168-176

    • DOI

      10.20619/jcombsj.64.208_168

    • ISSN
      1347-1864, 2424-1687
    • Year and Date
      2022-05-15
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fundamentals of Combustion Reaction2022

    • Author(s)
      奥村 幸彦
    • Journal Title

      Journal of Japan Thermal Spray Society

      Volume: 59 Issue: 3 Pages: 175-182

    • DOI

      10.11330/jtss.59.175

    • ISSN
      0916-6076, 2186-1080
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reaction Analysis of nitrogen oxide for ammonia turbulent burner with hydrogen flame stabilizer2022

    • Author(s)
      Yukihiko Okumura, Tsukasa Hori, Fumiteru Akamatsu, Takahiro Kitano, Tomohiro Tsubota, Naoya Matsuda
    • Journal Title

      Proc. 32nd International Symposium on Transport Phenomena (ISTP2022)

      Volume: No.210

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] 高負荷燃焼とNOx低減の同時機能実現に向けたCO2フリー燃焼器の開発2021

    • Author(s)
      奥村 幸彦
    • Journal Title

      Cybermedia High Performance Computer Journal

      Volume: 10 Pages: 57-60

    • Related Report
      2020 Research-status Report
    • Open Access
  • [Presentation] Flame structure and reaction analysis for ammonia turbulent burner2023

    • Author(s)
      Yukihiko Okumura
    • Organizer
      7th International Workshop on Heat-Mass Transfer Advances for Energy Conservation and Pollution Control (IWHT2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] H2/NH3燃排雰囲気下における伝熱交換機の高効率化2023

    • Author(s)
      高木康成,香川暉羅,奥村幸彦
    • Organizer
      第35回中国四国伝熱セミナー(日本伝熱学会中四国支部主催)
    • Related Report
      2023 Annual Research Report
  • [Presentation] 旋回‐絞り構造バーナーによるバイオシンガスの高負荷燃焼機構2023

    • Author(s)
      楠 直也 、竹原 裕貴 、奥村 幸彦
    • Organizer
      第60回日本伝熱シンポジウム講演論文集(日本伝熱学会主催)
    • Related Report
      2023 Annual Research Report
  • [Presentation] H2/NH3燃焼雰囲気における円管周りの基礎伝熱特性2023

    • Author(s)
      高木康成,香川暉羅,奥村幸彦
    • Organizer
      第32回日本エネルギー学会大会講演論文集(日本エネルギー学会主催)
    • Related Report
      2023 Annual Research Report
  • [Presentation] 粗悪なバイオシンガス燃料の安定燃焼技術の構築2023

    • Author(s)
      奥村 幸彦,竹原 裕貴,楠 直也
    • Organizer
      熱工学コンファレンス 2023(日本機械学会主催、講演論文集有)
    • Related Report
      2023 Annual Research Report
  • [Presentation] 水素保炎型アンモニア拡散バーナーの火炎構造と反応解析2023

    • Author(s)
      奥村 幸彦,坪田 知大,松田 直也,堀 司,赤松 史光
    • Organizer
      第61回 燃焼シンポジウム(日本燃焼学会主催、講演論文集有)
    • Related Report
      2023 Annual Research Report
  • [Presentation] Effect of syngas (CO/H2) ratio on exhaust gas characteristics of gas engine2023

    • Author(s)
      Hossain Md. Zakir, Naoya Kishi, Yukihiko Okumura
    • Organizer
      International Workshop on Environmental Engineering 2023 (IWEE2022)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Exhaust Gas Characteristics and NOx Formation Mechanism on Spark Ignition Engine Using By Bio-Syngas2023

    • Author(s)
      Hossain Zakir, Naoya Kishi and Yukihiko Okumura
    • Organizer
      AIChE Annual Meeting(American Institute of Chemical Engineers)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] NH3/H2/N2 予混合火炎の燃焼特性2022

    • Author(s)
      坪田知大,菊池賢太,矢川憲利,松浪智広,奥村幸彦
    • Organizer
      第60回 燃焼シンポジウム(日本燃焼学会主催)
    • Related Report
      2022 Research-status Report
  • [Presentation] 旋回‐絞り構造バーナーによるバイオシンガスの高負荷燃焼2022

    • Author(s)
      楠直也,竹原裕貴,奥村幸彦
    • Organizer
      第31回日本エネルギー学会大会講演論文集(日本エネルギー学会主催)
    • Related Report
      2022 Research-status Report
  • [Presentation] 難燃性バイオシンガスの高負荷燃焼2022

    • Author(s)
      竹原裕貴,楠直也,奥村幸彦
    • Organizer
      第59回日本伝熱シンポジウム講演論文集(日本伝熱学会主催)
    • Related Report
      2022 Research-status Report
  • [Presentation] Reaction Analysis of nitrogen oxide for ammonia turbulent burner with hydrogen flame stabilizer2022

    • Author(s)
      Yukihiko Okumura, Tsukasa Hori, Fumiteru Akamatsu, Takahiro Kitano, Tomohiro Tsubota, Naoya Matsuda
    • Organizer
      32nd International Symposium on Transport Phenomena (ISTP2022)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Development of ammonia burner with hydrogen flame stabilizer2021

    • Author(s)
      Yukihiko Okumura, Tsukasa Hori, Fumiteru Akamatsu, Takahiro Kitano, Tomohiro Tsubota, Naoya Matsuda
    • Organizer
      The 2nd Asian Conference on Thermal Sciences
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Combustion characteristics of NH3/H2 premixed flames and mechanism of NOx formation2021

    • Author(s)
      Kosuke Hoshika, Kira Kagawa, Yukihiko Okumura
    • Organizer
      The European Japan Experts Association International Conference 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effect of reaction scheme on the structure of ammonia turbulent flame2021

    • Author(s)
      Tomohiro Tsubota, Naoya Matsuda, Yukihiko Okumura
    • Organizer
      The European Japan Experts Association International Conference 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] NOx reaction analysis of ammonia flame burner with hydrogen stabilizer2021

    • Author(s)
      Matsuda Naoya, Tsubota Tomohiro, Yukihiko Okumura
    • Organizer
      The European Japan Experts Association International Conference 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 同軸噴流アンモニアバーナーにおける低 NOx化への一考察 - 重管による NOx還元域設定とバーナー設計 -2021

    • Author(s)
      松田直也,坪田知大,奥村幸彦,堀 司,赤松史光
    • Organizer
      第59回燃焼シンポジウム講演論文集(日本燃焼学会主催)
    • Related Report
      2021 Research-status Report
  • [Presentation] ガスエンジン特性に及ぼすアンモニア混合の影響2021

    • Author(s)
      星加浩輔,岸 直弥,奥村幸彦, 神原 信志
    • Organizer
      第30回日本エネルギー学会大会(日本エネルギー学会主催)
    • Related Report
      2021 Research-status Report
  • [Presentation] 水素保炎型アンモニア乱流拡散バーナーの燃焼解析2021

    • Author(s)
      坪田知大,松田直也,奥村幸彦,北野貴寛,堀 司,赤松史光
    • Organizer
      環境シンポジウム講演論文集 (日本機械学会主催)
    • Related Report
      2021 Research-status Report
  • [Presentation] ガスエンジンの排ガス特性に及ぼすシンガス(CO/H2)比の影響2021

    • Author(s)
      岸 直弥、星加 浩輔 ,奥村 幸彦
    • Organizer
      第 58 回日本伝熱シンポジウム講演論文集 (日本伝熱学会主催)
    • Related Report
      2021 Research-status Report
  • [Presentation] 水素保炎型アンモニアバーナーのNOx反応解析- Thermal とFuel NOxとの分離およびNOx生成・消滅機構-2020

    • Author(s)
      松田直也,坪田知大,奥村幸彦,北野貴寛,堀 司,赤松史光
    • Organizer
      第58回燃焼シンポジウム(日本燃焼学会主催)
    • Related Report
      2020 Research-status Report
  • [Presentation] 水素保炎型アンモニア乱流拡散火炎の燃焼構造2020

    • Author(s)
      坪田知大,松田直也,奥村幸彦,北野貴寛,堀 司,赤松史光
    • Organizer
      第29回日本エネルギー学会大会 (日本エネルギー学会主催)
    • Related Report
      2020 Research-status Report
  • [Presentation] アンモニアの火炎構造に関する実験的研究:CO2フリー燃焼への検討2020

    • Author(s)
      奥村 幸彦
    • Organizer
      第30回環境工学総合シンポジウム2020 (日本機械学会主催)
    • Related Report
      2020 Research-status Report
  • [Presentation] Numerical simulation of ammonia burner with hydrogen flame stabilizer2020

    • Author(s)
      Yukihiko Okumura, Tsukasa Hori, Fumiteru Akamatsu, Takahiro Kitano, Tomohiro Tsubota, Naoya Matsuda
    • Organizer
      31st International Symposium on Transport Phenomena (ISTP2020)査読有
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Book] カーボンニュートラル燃料最新動向~水素・アンモニア・e-fuel・バイオ燃料~2022

    • Author(s)
      加藤 之貴編著、(奥村幸彦:第3章担当,分担:pp.118-128)
    • Total Pages
      253
    • Publisher
      情報機構
    • ISBN
      9784865022377
    • Related Report
      2022 Research-status Report
  • [Remarks] 脱炭素化に挑戦:次世代アンモニア燃料

    • URL

      https://fugaku100kei.jp/mag/15/

    • Related Report
      2023 Annual Research Report
  • [Remarks] 環境エネルギー工学研究室

    • URL

      https://www.eng.kagawa-u.ac.jp/~okumura/index0.html

    • Related Report
      2022 Research-status Report 2021 Research-status Report 2020 Research-status Report
  • [Patent(Industrial Property Rights)] 難燃性ガス燃料の安定燃焼および高負荷燃焼技術2022

    • Inventor(s)
      奧村幸彦
    • Industrial Property Rights Holder
      奧村幸彦
    • Industrial Property Rights Type
      特許
    • Filing Date
      2022
    • Related Report
      2021 Research-status Report

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Published: 2019-04-18   Modified: 2025-01-30  

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