Experimental Study on Macroscopic Spray and Fuel Film Characteristics of E40 in a Constant Volume Chamber

Huayu Tian, Jun Wang, Ran Zhang, Yulin Zhang (), Yan Su, Hao Yu and Bo Shen
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Huayu Tian: Sinopec Research Institute of Petroleum Processing, Beijing 100083, China
Jun Wang: Sinopec Research Institute of Petroleum Processing, Beijing 100083, China
Ran Zhang: Sinopec Research Institute of Petroleum Processing, Beijing 100083, China
Yulin Zhang: College of Automotive Engineering, Jilin University, Changchun 130022, China
Yan Su: College of Automotive Engineering, Jilin University, Changchun 130022, China
Hao Yu: College of Automotive Engineering, Jilin University, Changchun 130022, China
Bo Shen: College of Automotive Engineering, Jilin University, Changchun 130022, China

Energies, 2023, vol. 16, issue 22, 1-13

Abstract: In the modern industrial field, there is a strong emphasis on energy-saving and emission reduction. Increasing the amount of ethanol in ethanol–gasoline blends has the potential to replace fossil fuel gasoline more effectively, improving energy efficiency and lowering emissions. The interaction between liquid fuel film generation on the piston crown and spray impingement in the combustion chamber in the setting of GDI engines has a substantial impact on particle emissions and engine combustion. In this study, 92# gasoline and ethanol by volume are combined to create the ethanol–gasoline blend E40. The spray characteristics and film properties of both gasoline and the intermediate proportion ethanol–gasoline blend E40 were researched utilizing a constant volume combustion platform and the schlieren method and refractive index matching (RIM) approach. The results show that, for 0.1–25 operating conditions, gasoline consistently displays greater macroscopic spray characteristic parameters than E40. This shows that gasoline fuel spray evaporation is superior to E40. Similar results are seen in the analysis of wall-attached fuel films, where the volume and thickness of the gasoline film are less than those of the E40 film under the given operating conditions. In contrast, E40 consistently exhibits stronger macroscopic spray characteristic values than gasoline under the 0.1–150 and 0.4–150 operating conditions, along with lower film thickness and volume. As a result, under these two operating conditions, E40 fuel performs better during spray evaporation.

Keywords: ethanol; free spray; spray impingement; fuel film (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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