NDLI: Numerical Simulation of Internal Flow and Spray of Liquid Phase LPG (Liquefied Petroleum Gas) Injection

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Xu, Boyan Qi, Yunliang Cai, Shaoli Geng, Deqiang
Copyright Year	2008
Abstract	Cavitation and flashing formed inside and outside of an injector, respectively, have significant effect on liquid phase LPG (Liquefied Petroleum Gas) injection. Numerical simulations of internal flow of the liquid phase LPG inside different injector nozzles were performed using the FIRE CFD code. The results showed that the cavitation always occurred at the inlet corner of the nozzle with negative pressure and higher velocity regardless the nozzle geometries. The relationships between vapor void fraction at the exit of the nozzle and injection pressure were also investigated for different nozzle geometries. The spray of the liquid phase LPG was further simulated by using the results of the internal flow as initial conditions. During the simulation of the spray, the effect of superheat degree on evaporation was considered and a modified evaporation equation was employed. The comparison of the simulation with experimental results showed that, with the injection pressure increasing, spray tip penetration increased but SMD (Sauter mean diameter) decreased.
Starting Page	23
Ending Page	35
Page Count	13
File Format	PDF
ISBN	9780791848647
DOI	10.1115/IMECE2008-66907
e-ISBN	9780791838402
Volume Number	Volume 3: Combustion Science and Engineering
Conference Proceedings	ASME 2008 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2008-10-31
Publisher Place	Boston, Massachusetts, USA
Access Restriction	Subscribed
Subject Keyword	Surface mount devices Computer simulation Computational fluid dynamics Sprays Vapors Evaporation Flashing Pressure Cavitation Petroleum Internal flow Simulation Ejectors Fire Nozzles Porosity Corners (structural elements)
Content Type	Text
Resource Type	Article

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