Emulsified fuel stabilized by comb-type ternary block copolymers for drag reduction and heat transfer enhancement

IF 7.7 2区工程技术 Q1 CHEMISTRY, APPLIED

Fuel Processing Technology Pub Date : 2025-09-17 DOI:10.1016/j.fuproc.2025.108335

Bin Sun , Xiwei Ye , Yongsheng Guo , Shu Yan , Wenjun Fang

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引用次数: 0

Abstract

Turbulent flow in high-speed hydrocarbon fuels increases engine resistance and pump load, leading to higher power demands and reduced reliability. Current drag reduction agents often worsen heat transfer performance. To overcome the contradiction between drag reduction and heat transfer deterioration, comb-type ternary block copolymers, hexadecyl methacrylate-co-dimethylaminoethyl methacrylate-co-methacrylic acid, have been designed and synthesized through photoinitiated polymerization and used as emulsifiers to prepare emulsified fuels. The emulsions with different compositions of JP-10 to water as 9.5:0.5, 9:1, 8.5:1.5, and 8:2, respectively, were characterized using creaming index analysis, dynamic light scattering and zeta potential measurements, rheological analysis, laser scanning confocal microscopy and polarized optical microscopy measurements, interfacial tension and interfacial film rheology measurements. A significant enhancement in heat sink and heat transfer coefficients of the emulsified fuel compared to pure JP-10 is observed within the temperature range from 100 to 225 °C. Simultaneous enhancements in drag reduction rate and heat transfer coefficient for the emulsified fuel in a distributed flow calorimeter can reach 19.5 % and 6.09 %, respectively. Emulsified fuels show great prospects in improving the stable and highly efficient operation of advanced aircraft.

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用梳型三元嵌段共聚物稳定乳化燃料，以减少阻力和增强传热

高速碳氢燃料中的湍流增加了发动机阻力和泵负荷，导致更高的功率需求，降低了可靠性。目前的减阻剂往往恶化传热性能。为克服减阻与传热恶化之间的矛盾，通过光引发聚合，设计合成了梳状三元嵌段共聚物——甲基丙烯酸十六烷基-二甲基氨基乙基-甲基丙烯酸共聚物，并将其用作乳化剂制备乳化燃料。采用成乳指数分析、动态光散射和zeta电位测量、流变学分析、激光扫描共聚焦显微镜和偏振光学显微镜测量、界面张力和界面膜流变学测量等方法，对JP-10与水的配比分别为9.5:0.5、9:1、8.5:1.5和8:2的乳液进行了表征。在100 ~ 225℃的温度范围内，与纯JP-10相比，乳化燃料的热沉系数和传热系数显著增强。同时，乳化燃料在分布式流量量热计中的减阻率和换热系数分别提高了19.5%和6.09%。乳化燃料在提高先进飞机的稳定、高效运行方面具有广阔的应用前景。

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来源期刊

Fuel Processing Technology 工程技术-工程：化工

CiteScore

13.20

自引率

9.30%

发文量

398

审稿时长

26 days

期刊介绍： Fuel Processing Technology (FPT) deals with the scientific and technological aspects of converting fossil and renewable resources to clean fuels, value-added chemicals, fuel-related advanced carbon materials and by-products. In addition to the traditional non-nuclear fossil fuels, biomass and wastes, papers on the integration of renewables such as solar and wind energy and energy storage into the fuel processing processes, as well as papers on the production and conversion of non-carbon-containing fuels such as hydrogen and ammonia, are also welcome. While chemical conversion is emphasized, papers on advanced physical conversion processes are also considered for publication in FPT. Papers on the fundamental aspects of fuel structure and properties will also be considered.