每年出版 12 期
ISSN 打印: 1044-5110
ISSN 在线: 1936-2684
Indexed in
EXPERIMENTAL STUDY ON SPRAY CHARACTERISTICS OF EMULSIFIED DIESEL BLENDING WITH WATER IN A CONSTANT VOLUME CHAMBER
摘要
The combustion process in a diesel engine, and therefore the emissions characteristics of such an engine, are typically controlled by mixing of fuel and air. To better understand this process, the injection process must be better understood. This paper explores spray characteristics of emulsified diesel blends with water by using a newly constructed constant volume chamber system. The schlieren technique and a high speed video camera are used to record the spray process, and MATLAB software is used to process the spray digital images. Of particular focus is the effect of water magnitude in emulsified fuel, as well as ambient pressure and injection pressure on the spray characteristics. Results show that as the magnitude of water increases, the spray tip penetration increases, but the spray cone angle, spray volume, and spray area decrease. When the ambient pressure is increased, the spray resistance is greater, and the spray tip penetration will be shorter, the spray penetration velocity will be slower, and the spray volume and area will be smaller, but the spray cone angle will be larger. At higher injection pressures, spray tip penetration is increased, penetration velocity increases, and spray area and volume increase, while cone angle decreases.
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Wang Zhaowen, Wu Shang, Huang Yuhan, Chen Yulin, Shi Shuguo, Cheng Xiaobei, Huang Ronghua, Evaporation and Ignition Characteristics of Water Emulsified Diesel under Conventional and Low Temperature Combustion Conditions, Energies, 10, 8, 2017. Crossref
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Wahhab Hasanain A. Abdul, Ismael Mahdi A., Aziz A. Rashid A., Heikal Morgan R., Al-Kayiem Hussain H., Modeling of a Spray of Diesel Fuel with Dissolved Liquefied Natural Gas, Asian Journal of Applied Sciences, 10, 2, 2017. Crossref
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Zhou Yifan, Qi Wenyuan, Wei Zhenhong, Zhang Yuyin, An image segmentation algorithm for fuel spray schlieren images with noisy backgrounds under engine-like conditions, Experiments in Fluids, 63, 5, 2022. Crossref
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Duy Nguyen Ho Xuan, Lim Ocktaeck, A study on spray characteristic of gasoline-biodiesel blended under gci engines condition performed on constant volume combustion chamber system, Journal of Mechanical Science and Technology, 36, 4, 2022. Crossref