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Communication Dans Un Congrès Année : 2023

Spray Characteristics and Vaporization process of ammonia-ethanol blends with a current Bosch GDI engine injector

Résumé

The study aims to provide information on the spray characteristics and vaporization process of ammonia-ethanol blends with a current GDI injector at different air densities and temperatures. The Schlieren technique was used to capture images of liquid spray. The penetration length and the spray angle at quarter-penetration length were measured and are clearly dependent on the ammonia ratio at low pressure, around 2 bar. A part of this study focuses on the vaporization process of the different blends with a comparison of the modeling of one single droplet vaporization. The calculation indicated a droplet temperature drop: from 9°C to -63°C from pure ethanol to pure ammonia, respectively.
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Dates et versions

hal-04208099 , version 1 (18-09-2023)

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  • HAL Id : hal-04208099 , version 1

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Ronan Pelé, Pierre Brequigny, Camille Hespel, Jérôme Bellettre, Christine Mounaïm-Rousselle. Spray Characteristics and Vaporization process of ammonia-ethanol blends with a current Bosch GDI engine injector. 32st European Conference on Liquid Atomization & Spray Systems (ILASS Europe 2023), Sep 2023, Napoli, Italy. ⟨hal-04208099⟩
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