Influence of Aromatic Components in Low Sulpher Fuels on Soot Emission and Wall Heat Loss

低硫燃料中芳香族成分对烟灰排放和壁热损失的影响

• 批准号: 21K04522
• 负责人: 今井 康雄
• 金额: $ 2.66万
• 依托单位: National Institute of Maritime, Port and Aviation Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2021
• 资助国家: 日本
• 起止时间: 2021-04-01 至 2024-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-21K04522/
• 关键词: 低硫黄燃料油; すす; 壁面熱損失; 熱損失

令和4年度は，すすの生成と酸化に寄与するC2ラジカルおよびOHラジカルの時空間分布の計測結果と，熱流束計による壁面熱損失計測結果を連成解析し，燃料油中の芳香族分に対するすすの生成と熱損失への影響を調べた．供試燃料の選定については，すすの生成は燃料油中の芳香族の影響のみだけではなく，燃料油と空気との混合時間（着火遅れ）も影響するため，芳香族の影響を明確にするためにできるだけ供試燃料の着火遅れが揃うようにする必要がある．本研究では，芳香族としてセタン価が比較的近いトルエン（セタン価６程度）と1-メチルナフタレン（セタン価0）を用い，供試燃料中の芳香族含有率を60vol%となるようにヘキサデカンと混合した．また芳香族分は，トルエンと1-メチルナフタレンをそれぞれ単独でヘキサデカンと混合した場合と，トルエンと1-メチルナフタレンを1:3，1:1，3:1の各比率でヘキサデカンと混合し，異なる芳香族が共存した場合として供試燃料を作製した．燃料噴射条件は，40MPaから130MPaまで，30MPa刻みで設定し，噴射期間は1.0msと3.0msに設定し，噴射特性によって，すすの排出量と壁面熱損失との関係性の違いについて調査した．令和4年度は，上述の5種類の燃料のうち3種類についてC2ラジカルおよびOHラジカルの時空間分布計測と熱流束計による壁面熱損失の計測実験を行い，これら計測結果の連成解析を開始した．また，令和4年度に実施した範囲において概ね各供試燃料の着火遅れに大きな違いは見られなかったことを確認した．

In Ling and 2004, the results of time and space distribution calculation were generated for acidizing and air conditioning, and the results were linked to the analytical results for the calculation of the time and space distribution of the OH cycle. The aromatic compounds in the fuel oil generated a negative impact on the performance of the fuel oil, and the test fuel was selected for the test fuel. The aromatics in the fuel oil, the aromatic compounds in the fuel oil, the mixing time between the fuel oil, the air and the air, the mixing time (ignition temperature), and the aromatic compounds in the fuel oil, the aromatic oil, the fuel, the air, the fuel, the The concentration of aromatic compounds in the test fuel is 60%. The content of aromatic compounds in the test fuel is 60%. The content of aromatic compounds in the test fuel is 60%. The content of aromatic compounds in the test fuel is 60%. The content of aromatic compounds in the test fuel is 60%. The content of aromatic compounds in the test fuel is 60%. The content of aromatic compounds in the test fuel is 60%. The fuel firing conditions, the 40MPa firing 130MPa settings, the 30MPa firing settings, the firing period setting, the emission characteristic setting, the firing period setting, the emission characteristic setting, the fuel firing condition, the firing period setting, the firing period setting, the emission characteristic setting, the fuel firing condition, the firing period setting, the firing period setting, the firing characteristic setting, the fuel firing condition, the firing period setting, the firing period setting, the firing characteristic setting, the fuel firing condition, the fuel firing condition, the firing period setting, the firing period setting, the firing characteristic setting, etc. During the year of 2004, the above-mentioned fuel consumption, such as fuel consumption, C2 gas emission, OH emission, time and space distribution, time and space distribution, were calculated, and the results of the analysis were linked to the beginning of the analysis. In order and for the year 4, the scope of the test fuel is expected to be on fire.