A numerical study of high-pressure droplet vaporization

Journal Article · Sat Aug 01 04:00:00 EDT 1992 · Combustion and Flame; (United States)

DOI:https://doi.org/10.1016/0010-2180(92)90111-2· OSTI ID:7232691

Curtis, E W; Farrell, P V ^[1]

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1. Wisconsin Univ., Madison, WI (United States). Dept. of Mechanical Engineering

This paper reports that the evaporation of single, spherical fuel droplets in a high-pressure, high-temperature environment has been studied numerically. The model is fully transient in both the liquid and the vapor phases. Transport properties are functions of temperature, pressure, and composition, and vary throughout the liquid droplet and the vapor boundary layer. Equilibrium at the liquid-vapor interface is calculated using the Peng-Robinson equation of state, and accounts for diffusion of the gas into the liquid droplet. The Peng-Robinson equation of state is also used to calculate the enthalpy of vaporization of the fuel species as well as the liquid and vapor mixture densities. The proposed model is compared with data obtained for a variety of liquids. The comparisons include the predictions of the critical mixing state, droplet vaporization rate, and droplet temperature. Transient effects in both the liquid and vapor phases are found to have a large effect on the droplet heatup and vaporization process.

• OSTI ID: 7232691
• Journal Information: Combustion and Flame; (United States), Journal Name: Combustion and Flame; (United States) Vol. 90:2; ISSN CBFMA; ISSN 0010-2180
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
025000* -- Petroleum-- Combustion
33 ADVANCED PROPULSION SYSTEMS
330102 -- Internal Combustion Engines-- Diesel
42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
661300 -- Other Aspects of Physical Science-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CALCULATION METHODS
DIESEL ENGINES
DIESEL FUELS
DIFFUSION
DISPERSIONS
DROPLETS
ENERGY SOURCES
ENGINES
ENTHALPY
EQUATIONS
EQUATIONS OF STATE
EVAPORATION
FLUIDS
FOSSIL FUELS
FUELS
GAS OILS
GASES
HEAT ENGINES
HIGH PRESSURE
INTERFACES
INTERNAL COMBUSTION ENGINES
LIQUID FUELS
MIXTURES
NUMERICAL SOLUTION
PARTICLES
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PHASE STUDIES
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
TEMPERATURE RANGE
TEMPERATURE RANGE 0400-1000 K
THERMODYNAMIC PROPERTIES
THERMODYNAMICS
VAPORS