用光学发动机研究丁醇与柠檬皮油与汽油混合后的火焰和喷射特性

IF 2.6 3区 工程技术 Q3 ENERGY & FUELS
Shashank Sharma Charlapally, Yogesh Biswal, G. M. Nayak, Karthick C, S. Balusamy, Nanthagopal K
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引用次数: 0

摘要

目前的研究调查了柠檬皮油(LPO)和丁醇在受控环境中在各种类似发动机的条件下的喷雾行为。使用标准Mie散射技术捕捉两种燃料混合物的液体喷雾形态,并将液体喷雾穿透长度与基准燃料异辛烷进行比较。为了模拟和创造类似发动机的条件,这些实验是在不同压力和温度条件下在定容室中进行的。此外,使用光学GDI发动机在三种不同的喷射正时下研究了二元和三元混合物的燃烧质量。根据定容喷雾研究,异辛烷的穿透时间最短。由于其沸点较高,LPO具有较长的液体喷雾穿透长度。尽管丁醇的沸点较低,但它的渗透性要好于异辛烷。还发现温度对液体喷雾尖端穿透长度的影响大于压力。缸内燃烧成像结果还显示,喷射正时显著影响燃烧。尽管丁醇改善了燃烧,但由于蒸发特性较差,以LPO为主的共混物表现出更多的扩散燃烧。为研究所制备的混合物在燃烧条件下与汽油相似。研究发现,这些混合物在不需要对现有发动机进行任何修改的情况下以最佳方式运行,即使建议延迟喷射以提高燃烧质量和峰值性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Investigation on flame and spray characteristics of butanol and lemon peel oil blends with gasoline using optical engine
The current research investigates the spray behavior of lemon peel oil (LPO) and butanol in a controlled environment under various engine-like conditions. The liquid spray morphology of both fuel blends is captured using a standard Mie scattering technique, and the liquid spray penetration length is compared to a baseline fuel isooctane. In order to simulate and create engine-like conditions, these experiments are carried out in a constant volume chamber under various pressure and temperature conditions. Furthermore, the combustion quality of binary and ternary blends is studied using an optical GDI engine at three different injection timings. According to the constant volume spray study, isooctane has the shortest penetration. Because of its higher boiling point, LPO has a longer liquid spray penetration length. Despite its lower boiling point, butanol penetrates better than isooctane. The temperature was also discovered to influence liquid spray tip penetration length more than pressure significantly. In-cylinder combustion imaging results also revealed that injection timing significantly impacts combustion. Although butanol improves combustion, LPO-dominant blends demonstrated more diffusion burning due to poor evaporation characteristics. The blends prepared for the study were similar to gasoline in combustion conditions. It was discovered that these blends ran optimally without requiring any modifications to existing engines, even though late injection is recommended to improve combustion quality and peak performance.
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来源期刊
CiteScore
6.40
自引率
30.00%
发文量
213
审稿时长
4.5 months
期刊介绍: Specific areas of importance including, but not limited to: Fundamentals of thermodynamics such as energy, entropy and exergy, laws of thermodynamics; Thermoeconomics; Alternative and renewable energy sources; Internal combustion engines; (Geo) thermal energy storage and conversion systems; Fundamental combustion of fuels; Energy resource recovery from biomass and solid wastes; Carbon capture; Land and offshore wells drilling; Production and reservoir engineering;, Economics of energy resource exploitation
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