X-Ray Radiography and Phase-Contrast Imaging of the Engine Combustion Network Spray B Sprays and Injection

Journal Article · Fri Jan 01 00:00:00 EST 2021 · Atomization and Sprays

DOI:https://doi.org/10.1615/atomizspr.2021036665· OSTI ID:1821217

Kastengren, Alan L. ^[1]; Fezzaa, Kamel ^[1]; Tilocco, F. Zak ^[2]; Duke, Daniel ^[2]; Swantek, Andrew B. ^[2]; Powell, Christopher F. ^[2]

---

1. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
2. Argonne National Lab. (ANL), Argonne, IL (United States)

X-ray measurements of diesel sprays from two of the Engine Combustion Network (ECN) Spray B injectors are described. Measurements in these three-hole nozzles complement both visible light measurements of these sprays and previous x-ray measurements of the axial single-hole ECN Spray A injectors. Both axial and lateral motions of the injector needle valve were measured with x-ray phase contrast imaging. Additionally, the liquid mass distribution in room temperature sprays at elevated ambient pressure was determined with x-ray radiography. Measurements of both needle valve motion and spray distribution were performed at both the standard Spray A/B conditions and with selected variations of injection pressure, ambient density, and injection timing. The needle valve motion for the Spray B injectors is quite similar to that of the Spray A injectors, though little lateral motion is seen in either Spray B injector. Compared to the sprays from the Spray A injectors, the sprays from Spray B penetrate more slowly in the near-nozzle region, demonstrate a broader, more uniform distribution in the transverse direction, and are significantly more variable with respect to time. These differences demonstrate the importance of studies with multi-hole nozzles to provide insight into applied diesel combustion.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office
• Grant/Contract Number: AC02-06CH11357
• OSTI ID: 1821217
• Journal Information: Atomization and Sprays, Journal Name: Atomization and Sprays Journal Issue: 8 Vol. 31; ISSN 1044-5110
• Publisher: Begell House
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
Spray B
diesel sprays
engine combustion network
radiography
x-ray