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Tytuł pozycji:

微细水核直径掺水乳化柴油制备方法和影响因素研究. (Chinese)

Tytuł :
微细水核直径掺水乳化柴油制备方法和影响因素研究. (Chinese)
Autorzy :
王兆文
曹俊辉
袁 波
王宇洲
吕 嵩
成晓北
Pokaż więcej
Temat :
TERRITORIAL waters
IMAGE recognition (Computer vision)
WATER distribution
PARTICULATE matter
AGRICULTURAL intensification
Alternatywny tytuł :
Production method and influencing factors of water-in-oil emulsified different diesel with fine water core diameters. (English)
Źródło :
Transactions of the Chinese Society of Agricultural Engineering; 2021, Vol. 37 Issue 6, p235-242, 8p
Abstract (English) :
Consumption of petroleum resource has risen sharply in recent years with the increase in fuel vehicles and heavy machinery in mechanized intensive agriculture. A large amount of emitted pollution has posed a serious threat to the atmospheric environment, even to body health in human survival. Water-in-oil (W/O) emulsified diesel fuel has received widespread attention for its ability to simultaneously remove nitrogen oxides and particulate matter. The micro-explosive characteristics of W/O fuel depend strongly on the diameter of the water core. But a systematic solution is still lacking in the preparation of W/O emulsified fuel for the target diameter of the water core at the constant component content. In this study, an image recognition system was first developed suitable for the microstructure of the water core in the W/O emulsified fuel using the Chan–Vese (CV) model. A log-normal function was proposed to fit the diameter distribution of the water core in the W/O emulsified fuel, thereby obtaining a new combination of characteristic parameters. An orthogonal test was selected to explore the influence of emulsification parameters on the diameter of the water core, including the emulsification time, emulsification power, and frequency parameters. The optimal parameters were achieved to fabricate the W/O emulsion with the target diameter of the water core. The results show that the CV model better identified the discrete boundary of the water core with smaller error, compared with manual recognition. The characteristics parameters from the lognormal function fitting can describe more accurately the diameter distribution of the water core in the W/O emulsified fuel, compared with the Sauter Mean Diameter (SMD). The maximum diameter of the water core and the standard deviation of diameter distribution gradually decreased, while the ultrasonic frequency imposed a relatively weak influence on the W/O emulsified fuel, as the emulsification time and power increased. When the diameter of the water core and the distribution reached a critical value, there was much more effect of emulsification power on the diameter of water core and the distribution, compared with the emulsification time with the same energy. In addition, there was no change in the maximum diameter of the water core. The ratios of three preparation factors (ultrasonic frequency, emulsification power, and emulsification time) to the maximum fitting diameter were 0.744, 2.88, and 1.038, respectively. The standard deviations of distribution were 0.028, 0.120, and 0.034, respectively. The priority of three parameters was ranked in order: emulsification power > emulsification time > ultrasonic frequency. [ABSTRACT FROM AUTHOR]
Czasopismo naukowe
Copyright of Transactions of the Chinese Society of Agricultural Engineering is the property of Chinese Society of Agricultural Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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