生物航空煤油层流燃烧特性实验

刘宇; 张源航; 王金铎; 王鹏; 马洪安; 曾文

doi:10.13224/j.cnki.jasp.20240861

生物航空煤油层流燃烧特性实验

doi: 10.13224/j.cnki.jasp.20240861

刘宇^1,,
张源航¹,
王金铎²,
王鹏¹,
马洪安¹,
曾文^1,*, ,

1.
沈阳航空航天大学航空发动机学院，沈阳 110136
2.
北京航空航天大学航空发动机研究院，北京 100191

基金项目: 中国航空发动机集团产学研合作项目（HFZL2021CXY003）

详细信息

作者简介:
刘宇（1983-），男，教授，博士，主要从事航空燃料燃烧特性实验及燃烧反应机理研究。E-mail：liuyu_201409@163.com

通讯作者:
曾文（1977-），男，教授，博士，主要从事航空发动机燃烧过程与排放物生成的数值研究。E-mail：zengwen928@sohu.com

中图分类号: V231；TK401
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出版历程
- 收稿日期: 2024-12-30
- 网络出版日期: 2025-03-19

Experimental study on laminar combustion characteristics of bio-jet fuel

1.
School of Aero-engine，Shenyang Aerospace University，Shenyang 110136，China
2.
Research Institute of Aero-Engine，Beihang University，Beijing 100191，China

摘要

摘要:
以油脂加氢（HEFA）技术制备所得生物航空煤油为研究对象，开展层流燃烧特性研究。采用定容燃烧实验装置获得HEFA生物航空煤油及其与RP-3航空煤油混合燃料的层流燃烧速度（LBV）。实验参数包括当量比（0.8～1.4）、初始压力（0.05、0.1、0.15 MPa）、初始温度（450、470 K）、HEFA掺混比（0、0.1、0.2、0.3、0.5）等。分析当量比、初始压力、初始温度对HEFA生物航空煤油以及HEFA掺混比对HEFA生物航空煤油/RP-3航空煤油混合燃料层流燃烧速度的影响。研究发现：随着当量比增加，HEFA生物航空煤油的层流燃烧速度呈现出先增后减的趋势，其峰值速度出现在当量比1.1附近。随着初始压力从0.05 MPa增加至0.15 MPa，HEFA生物航空煤油层流燃烧速度减小13.54%。随着初始温度从450 K增加至470 K，HEFA生物航空煤油层流燃烧速度略有增加。随着HEFA掺混比从0增加至0.5，HEFA生物航空煤油/RP-3航空煤油混合燃料层流燃烧速度增加3.85%。结果表明：与RP-3航空煤油相比，虽然HEFA生物航空煤油碳数分布较高，但其化学组成却以链烷烃为主，导致其层流燃烧速度高于RP-3航空煤油。掺混HEFA生物航空煤油后，RP-3航空煤油层流燃烧速度略有增加。该项研究为生物航空煤油在航空发动机中的应用提供理论基础。
- 定容燃烧 /
- 油脂加氢（HEFA）生物航空煤油 /
- RP-3航空煤油 /
- 混合燃料 /
- 层流燃烧速度（LBV）
Abstract:
The laminar combustion characteristics of a certain bio-jet fuel with hydroprocessed esters and fatty acids (HEFA) technology were studied. The laminar burning velocity (LBV) of HEFA bio-jet fuel and HEFA bio-jet fuel/RP-3 mixed fuel was obtained by a constant volume combustion experimental device. The experimental parameters included equivalence ratios (0.8—1.4), initial pressures (0.05, 0.1, 0.15 MPa), initial temperatures (450, 470 K) and HEFA mixing ratios (0, 0.1, 0.2, 0.3, 0.5), et al. The effects of the equivalence ratio, initial pressure and initial temperature on the LBV of HEFA bio-jet fuel and the HEFA mixing ratio on the LBV of HEFA/RP-3 mixed fuel were analyzed. It was found that with the increase of equivalence ratio, the LBV of HEFA bio-jet fuel showed a trend of increasing first and then decreasing, and its peak value appeared near the equivalence ratio of 1.1. As the initial pressure increased from 0.05 MPa to 0.15 MPa, the LBV of HEFA bio-jet fuel decreased by 13.54%. As the initial temperature increased from 450 K to 470 K, the LBV of HEFA bio-jet fuel increased slightly. With the increase of HEFA mixing ratio from 0 to 0.5, the LBV of HEFA/RP-3 mixed fuel increased by 3.85%. The results showed that compared with RP-3 jet fuel, although the carbon number distribution of HEFA bio-jet fuel was higher, its chemical composition was dominated by alkanes, which led to its LBV higher than that of RP-3 jet fuel, so that the LBV of the mixed fuel after blending HEFA slightly increased. This study could provide a theoretical basis for the application of bio-jet fuel in aircraft engines.
- constant volume combustion /
- hydroprocessed esters and fatty acids (HEFA) bio-jet fuel /
- RP-3 jet fuel /
- mixed fuel /
- laminar burning velocity (LBV)

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图 1 定容燃烧反应装置图

Figure 1. Diagram of constant volume combustion reaction device

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图 2 HEFA生物航空煤油火焰发展图片

Figure 2. Flame development images of HEFA bio-jet fuel

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图 3 火焰半径随时间的变化规律（T=450 K，p=0.1 MPa）

Figure 3. Variation of flame radius with time（T=450 K，p=0.1 MPa）

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图 4 拉伸火焰传播速度随火焰半径的变化规律（T=450 K，p=0.1 MPa）

Figure 4. Variation of stretched flame speed with flame radius （T=450 K，p=0.1 MPa）

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图 5 拉伸火焰传播速度随拉伸率的变化规律（T=450 K，p=0.1 MPa）

Figure 5. Variation of stretched flame speed with stretch rate （T=450 K，p=0.1 MPa）

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图 6 HEFA生物航空煤油与其他生物航空煤油层流燃烧速度对比

Figure 6. Comparison of LBV between HEFA bio-jet fuel and other bio-jet fuel

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图 7 HEFA生物航空煤油层流燃烧速度随当量比变化

Figure 7. Changes in LBV of HEFA bio-jet fuel with equivalence ratio

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图 8 HEFA与RP-3混合燃料火焰发展图片

Figure 8. Flame development images of HEFA/RP-3 mixed fuel

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图 9 混合燃料层流燃烧速度随当量比变化规律

Figure 9. Variation of LBV of mixed fuel with equivalence ratio

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图 10 混合燃料层流燃烧速度随HEFA掺混比变化规律

Figure 10. Variation of LBV of mixed fuel with HEFA blending ratio

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表 1 HEFA生物航空煤油和RP-3航空煤油的部分理化性质

Table 1. Main physicochemical properties of HEFA bio-jet fuel and RP-3 jet fuel

参数	数值及详情
参数	HEFA	RP-3
平均分子式	C_14.08H_30.62	C_10.63H_20.29
分子量/（g/mol）	199.6	147.9
密度（293.15 K）/（kg/m³）	764.8	802.1
闪点/K	322.15	319.15
初馏点/K		433.55
10%回收温度/K	460.95	446.25
90%回收温度/K	553.45	474.85
终馏点/K	559.55	489.15
冰点/K	<208.15	<208.15
净热值/（MJ/kg）	44.102	43.124
碳质量分数/%	84.66	86.28
氢质量分数/%	15.34	13.72

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表 2 HEFA生物航空煤油和RP-3航空煤油的化学组分

Table 2. Chemical components of HEFA bio-jet fuel and RP-3 jet fuel

成分		质量分数/%
成分		HEFA	RP-3
链烷烃	正构烃	11.24	5.53
	单取代异构烃	52.76	19.47
	多取代异构烃	33.96	14.91
单环环烷烃	单取代单环烷烃	0.40	3.65
单环环烷烃	多取代单环烷烃	1.30	22.52
多环环烷烃	双环、三环烷烃	0.33	12.49
芳烃	单取代烷基苯		3.08
	多取代烷基苯		8.62
	萘、烷基萘		0.19
	茚满、四氢化萘、烷基四氢化萘		9.54

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表 3 实验工况

Table 3. Experimental conditions

参数	数值
初始温度/K	450，470
初始压力/MPa	0.05，0.1，0.15
当量比	0.8～1.4
HEFA掺混比	0，0.1，0.2，0.3，0.5

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