Experimental and numerical study on laminar burning velocity of gasoline and gasoline surrogates

Experimental and numerical study on laminar burning velocity of gasoline and gasoline surrogates
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汽油及汽油代用品层流燃烧速度的实验与数值研究

DOI:
10.1016/j.fuel.2019.115933
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发表时间:
2019-11
期刊:
影响因子:
7.4
通讯作者:
Zuohua Huang
Zuohua Huang
中科院分区:
工程技术1区
文献类型:
--
作者:
Erjiang Hu;Zhaohua Xu;Zhenhua Gao;Jiawei Xu;Zuohua Huang

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采用外传球形火焰法测量了国产汽油和汽油代用品的层流燃烧速度。测量在不同的当量比为0.8至1.5,初始温度为358 K,403 K,和448 K和初始压力为1个大气压,2个大气压和5个大气压在一个定容弹。提出了以92%异辛烷+8%正庚烷为基准燃料的PRF-92和以16. 69%异辛烷+22. 65%正庚烷+60. 66%甲苯为基准燃料的TRF-92两种替代燃料预测汽油层流燃烧速度的方法。结果发现,TRF-92能够成功地再现在各种实验条件下的商业汽油的层流燃烧速度。对Park等人的化学动力学模型进行了验证,并用于模拟层流燃烧速度。模拟的层流火焰速度与实验值吻合良好。
The outwardly propagating spherical flame method was used to measure the laminar burning velocity of a Chinese commercial gasoline and gasoline surrogates. Measurements were conducted at different equivalence ratios of 0.8 to 1.5, initial temperatures of 358 K, 403 K, and 448 K and initial pressures of 1 atm, 2 atm and 5 atm in a constant volume bomb. The primary reference fuel (PRF-92, vol. %: 92%iso-octane + 8% n-heptane) and toluene reference fuel (TRF-92, vol. %: 16.69%iso-octane + 22.65% n-heptane + 60.66% toluene) surrogates were proposed to predict the laminar burning velocity of commercial gasoline. It was found that the TRF-92 was able to successfully reproduce the laminar burning velocity of commercial gasoline under various experimental conditions. The chemical kinetic model of Park et al. was validated and used to simulate the laminar burning velocity. The simulated laminar flame speeds showed good agreement with the experimental values.
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