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The Effect of Temperature on the Molecular Compositions of External and Internal Gasoline Direct Injection Deposits
Technical Paper
2021-01-1188
ISSN: 0148-7191, e-ISSN: 2688-3627
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Abstract
The increased severity and prevalence of insoluble deposits formed on fuel injectors in gasoline direct injection (GDI) engines precipitates negative environmental, economic and healthcare impacts. A necessary step in mitigating deposits is to unravel the molecular compositions of these complex layered materials. But very little molecular data has been acquired. Mass spectrometry shows promise but most techniques require the use of solvents, making them unsuited for analyzing insoluble deposits. Here, we apply the high mass-resolving power and in-situ analysis capabilities of 3D OrbitrapTM secondary ion mass spectrometry (3D OrbiSIMS) to characterize deposits formed on the external tip and internal needle from a GDI injector. This is the first application of the technique to study internal GDI deposits. Polycyclic aromatic hydrocarbons (PAHs) are present up to higher maximum masses in the external deposit. Lubricating oil derived sulfonates are more intense in the internal deposit, however higher mass sulfonates are only present in the external deposit. None of these molecular species have been identified in internal GDI deposits before. 3D OrbiSIMS depth profiles show that the needle deposit has a uniform deposit layer whereas the injector tip has a more complex layered structure. Comparison of 3D OrbiSIMS data suggests that the higher temperature experienced by the external injector tip explains key compositional differences and leads to growth of a thicker, more complex, layered deposit structure. The new insight into the impact that temperature has on deposit composition will aid in their mitigation and will lead to reduced vehicle emissions and cleaner air.
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Edney, M., Smith, E., Wilmot, E., Reid, J. et al., "The Effect of Temperature on the Molecular Compositions of External and Internal Gasoline Direct Injection Deposits," SAE Technical Paper 2021-01-1188, 2021, https://doi.org/10.4271/2021-01-1188.Data Sets - Support Documents
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References
- Zhao , F. , Lai , M.-C. , and Harrington , D. Automotive Spark-Ignited Direct-Injection Gasoline Engines Prog. Energy Combust. Sci. 25 5 1999 437 562 10.1016/s0360-1285(99)00004-0
- Bloomberg New Energy Finance 2019
- Boger , T. , Glasson , T. , Rose , D. , Ingram-Ogunwumi , R. et al. Next Generation Gasoline Particulate Filters for Uncatalyzed Applications and Lowest Particulate Emissions SAE Technical Paper 2021-01-0584 2021 https://doi.org/10.4271/2021-01-0584
- Whitaker , P. , Kapus , P. , Ogris , M. , and Hollerer , P. Measures to Reduce Particulate Emissions from Gasoline DI engines SAE Int. J. Engines 4 1 2011 1498 1512 https://doi.org/10.4271/2011-01-1219
- Yang , J. , Roth , P. , Durbin , T.D. , Shafer , M.M. et al. Emissions from a Flex Fuel GDI Vehicle Operating on Ethanol Fuels Show Marked Contrasts in Chemical, Physical and Toxicological Characteristics as a Function of Ethanol Content Sci. Total Environ. 683 2019 749 761 https://doi.org/10.1016/j.scitotenv.2019.05.279
- Edney , M.K. , Barker , J. , Reid , J. , Scurr , D.J. et al. Recent Advances in the Analysis of GDI and Diesel Fuel Injector Deposits Fuel 272 2020 117682 10.1016/j.fuel.2020.117682
- Ding , H. , Zhang , W. , Ma , X. , Shuai , S. et al. The Impact of GDI Injector Deposits on Engine Combustion and Emission SAE Technical Paper 2017-01-2248 2017 https://doi.org/10.4271/2017-01-2248
- Jiang , C. , Xu , H. , Srivastava , D. , Ma , X. et al. Effect of Fuel Injector Deposit on Spray Characteristics, Gaseous Emissions and Particulate Matter in a Gasoline Direct Injection Engine Appl. Energy 203 2017 390 402 10.1016/j.apenergy.2017.06.020
- Reid , J. , Mulqueen , S. , Langley , G. , Wilmot , E. et al. The Investigation of the Structure and Origins of Gasoline Direct Injection (GDI) Deposits SAE Technical Paper 2019-01-2356 2019 https://doi.org/10.4271/2019-01-2356
- Dearn , K. , Xu , J. , Ding , H. , Xu , H. et al. An Investigation into the Characteristics of DISI Injector Deposits Using Advanced Analytical Methods SAE Int. J. Fuels Lubr. 7 3 2014 771 782 https://doi.org/10.4271/2014-01-2722
- Barker , J. , Snape , C. , and Scurr , D. Information on the Aromatic Structure of Internal Diesel Injector Deposits From Time of Flight Secondary Ion Mass Spectrometry (ToF-SIMS) SAE Technical Paper 2014-01-1387 2014 https://doi.org/10.4271/2014-01-1387
- Dallanegra , R. and Caprotti , R. Chemical Composition of Ashless Polymeric Internal Diesel Injector Deposits SAE Technical Paper 2014-01-2728 2014 https://doi.org/10.4271/2014-01-2728
- Feld , H. and Oberender , N. Characterization of Damaging Biodiesel Deposits and Biodiesel Samples by Infrared Spectroscopy (ATR-FTIR) and Mass Spectrometry (TOF-SIMS) SAE Int. J. Fuels Lubr. 9 3 2016 717 724 https://doi.org/10.4271/2016-01-9078
- Barker , J. , Snape , C. , and Scurr , D. A Novel Technique for Investigating the Characteristics and History of Deposits Formed Within High Pressure Fuel Injection Equipment SAE Int. J. Fuels Lubr. 5 3 2012 1155 1164 https://doi.org/10.4271/2012-01-1685
- Passarelli , M.K. , Pirkl , A. , Moellers , R. , Grinfeld , D. et al. The 3D OrbiSIMS—Label-Free Metabolic Imaging with Subcellular Lateral Resolution and High Mass-Resolving Oower Nat. Methods 14 2017 1175
- Beatrice , C. , Belgiorno , G. , Di Blasio , G. , Mancaruso , E. et al. Analysis of a Prototype High-Pressure “Hollow Cone Spray” Diesel Injector Performance in Optical and Metal Research Engines SAE Technical Paper 2017-24-0073 2017 https://doi.org/10.4271/2017-24-0073
- Edney , M.K. , Lamb , J.S. , Spanu , M. , Smith , E.F. et al. Spatially Resolved Molecular Compositions of Insoluble Multilayer Deposits Responsible for Increased Pollution from Internal Combustion Engines ACS Appl. Mater. Interfaces 12 45 2020 51026 51035 10.1021/acsami.0c14532
- XPS fitting www.XPSFitting.com 2021
- Abdallah , D.J. , Berkhous , S.K. , Wrigley , K.B. , Watkins , M.I. et al. Demistifying the Impact Diesel Fuel Bulk Composition PLays in Internal Injector Deposits with VASEtle International Symposium on Stability, Handling and use of Liquid Fuels 2017
- Nassar , A.M. , Ahmed , N.S. , El-shazly , R.I. , and Abd el Menem , Y.K. Preparation and Evaluation of the Mixtures of Sulfonate and Phenate as Lube Oil Additives Int. J. Ind. Chem. 8 4 2017 383 395 10.1007/s40090-017-0128-x
- Geng , Y. , Huang , J. , Tan , B. , Xu , Y. et al. Efficient Synthesis of Dodecylbenzene Sulfonic Acid in Microreaction Systems Chem. Eng. Process. - Process Intensif. 149 2020 107858 https://doi.org/10.1016/j.cep.2020.107858
- Rudnick , L.R. Synthetics, Mineral Oils, and Bio-Based Lubricants 3rd Boca Raton CRC Press 2020 10.1201/9781315158150 9781315158150
- https://www.atc-europe.org/public/Doc113 2013
- Xie , W. , Weng , L.-T. , Ng , K.M. , Chan , C.K. et al. Defects of Clean Graphene and Sputtered Graphite Surfaces Characterized by Time-of-Flight Secondary Ion Mass Spectrometry and X-ray Photoelectron Spectroscopy Carbon N. Y. 112 2017 192 200 https://doi.org/10.1016/j.carbon.2016.11.002