The present work investigated the laminar flame speed measurement of kerosene-relevant fuel, including Jet A-1 commercial kerosene, and surrogate kerosene fuel and its pure components (n-decane, n-propyl benzene, and propyl cyclohexane) using a high-pressure Bunsen flame burner. The OH* chemiluminescence technique and the kerosene-PLIF technique were used for flame contours detection in order to calculate the laminar flame speed. The experiments were first conducted for n-decane/air flame at T = 400 K, φ = 0.6–1.3, and atmospheric pressure conditions in order to validate the whole experimental system and measurement methodology. The laminar flame speed of Jet A-1/air, surrogate/air, and pure kerosene component (n-decane, n-propyl benzene, and propyl cyclohexane) was then measured under large operating conditions, including temperature T = 400–473 K, pressure P = 0.1–1.0 MPa, and equivalence ratio φ = 0.7–1.3. It was found that these three pure components of kerosene have very similar laminar flame speed. By comparing the experimental results of surrogate kerosene and Jet A-1 commercial kerosene, it was observed that the proposed surrogate kerosene, i.e., mixtures of 76.7 wt % n-decane, 13.2 wt % n-propyl benzene, and 10.1 wt % propyl cyclohexane, can appropriately reproduce the flame speed property of Jet A-1 commercial kerosene fuel. The experimental results were further compared with simulation results using a skeletal kerosene mechanism.

中文翻译：

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煤油燃料层流火焰速度测量的实验研究：喷射A-1，替代燃料及其纯组分

本工作研究了使用高压对煤油相关燃料（包括喷气A-1商用煤油）和替代煤油燃料及其纯组分（正癸烷，正丙基苯和丙基环己烷）进行层流火焰速度测量本生火焰燃烧器。OH *化学发光技术和煤油-PLIF技术用于火焰轮廓检测，以便计算层流火焰速度。为了验证整个实验系统和测量方法，首先对正癸烷/空气火焰在T = 400 K，φ= 0.6-1.3和大气压条件下进行了实验。喷射A-1 /空气，替代气体/空气和纯煤油组分的层流火焰速度（n然后在较大的操作条件下测量正癸烷，正丙基苯和丙基环己烷），包括温度T = 400-473 K，压力P = 0.1-1.0 MPa，当量比φ= 0.7-1.3。发现煤油的这三个纯组分具有非常相似的层流火焰速度。通过比较替代煤油和Jet A-1商业煤油的实验结果，可以发现拟议的替代煤油，即76.7 wt％正癸烷，13.2 wt％n正癸烷的混合物丙基苯和10.1 wt％的丙基环己烷可以适当地再现Jet A-1商业煤油燃料的火焰速度特性。将实验结果与使用骨骼煤油机理的模拟结果进行了进一步比较。