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Atomization and Sprays
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ISSN Imprimir: 1044-5110
ISSN En Línea: 1936-2684

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Atomization and Sprays

DOI: 10.1615/AtomizSpr.v15.i5.30
pages 517-544

EXPERIMENTAL CHARACTERIZATION OF INTERNAL NOZZLE FLOW AND DIESEL SPRAY BEHAVIOR. PART II: EVAPORATIVE CONDITIONS

Jose M. Desantes
CMT-Motores Termicos, Universitat Politecnica de Valencia, 46022, Spain
Jose V. Pastor
CMT Motores Termicos−Universitat Politecnica de Valencia, Camino Vera s/n−46022 Valencia, Spain
Raul Payri
CMT–Motores Térmicos, Universitat Politècnica de València, Edificio 6D, Valencia, 46022, Spain
https://orcid.org/0000-0001-7428-5510
Jose M. Pastor
CMT-Motores Termicos - Universitat Politecnica de Valencia

SINOPSIS

An experimental study of fuel evaporation in diesel sprays under current direct-injection diesel engines operating conditions is presented in this article. Liquid spray penetration has been obtained by means of backlight illumination images taken from a wide optical access engine operating under reacting and nonreacting conditions. From these measurements, the dependence of liquid spray maximum penetration on injection and ambient conditions is obtained and analyzed applying a diesel spray model and the hypothesis of mixing limited vaporization, which is verified by experimental results. A complete characterization of the internal nozzle flow and the sprays injected under nonevaporative conditions has been pe formed in a previous publication (Part I). In the present article (Part II), the results of that study are applied in order to assist the analysis of spray evaporative behavior.


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