Temperature measurement of single evaporating water droplets in a nitrogen flow using spontaneous Raman scattering

Christian Heinisch; Jon B. Wills; Jonathan P. Reid; Theo Tschudi; Cameron Tropea

doi:10.1039/b908555f

Temperature measurement of single evaporating water droplets in a nitrogen flow using spontaneous Raman scattering

Christian Heinisch^*, Jon B. Wills, Jonathan P. Reid, Theo Tschudi, Cameron Tropea

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

39 Citations (Scopus)

Abstract

The evaporation dynamics of stationary water droplets held within an electrodynamic trap are investigated in a nitrogen flow of variable velocity. In particular, the influence of the nitrogen gas flow on the temperature of the evaporating water droplets is studied. By applying a contact free measurement technique, based on spontaneous Raman scattering, time averaged and time resolved measurements of temperature in the droplet volume are compared. This technique determines the temperature from an intensity ratio in the OH stretching band of the Stokes-Raman scattering after calibration. The measured trends in temperature over the first 5 s of evaporation are found to be in agreement with theoretical calculations of the heat and mass transfer rates.

Original language	English
Pages (from-to)	9720-9728
Number of pages	9
Journal	Physical Chemistry Chemical Physics
Volume	11
Issue number	42
DOIs	https://doi.org/10.1039/b908555f
Publication status	Published - 2009

Keywords

AEROSOL-PARTICLES
MASS-TRANSFER
MICROPARTICLES
LEVITATION
FREQUENCY
TRAP
HEAT

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@article{9823d4badd554fc4a0c455bbb62072dc,

title = "Temperature measurement of single evaporating water droplets in a nitrogen flow using spontaneous Raman scattering",

abstract = "The evaporation dynamics of stationary water droplets held within an electrodynamic trap are investigated in a nitrogen flow of variable velocity. In particular, the influence of the nitrogen gas flow on the temperature of the evaporating water droplets is studied. By applying a contact free measurement technique, based on spontaneous Raman scattering, time averaged and time resolved measurements of temperature in the droplet volume are compared. This technique determines the temperature from an intensity ratio in the OH stretching band of the Stokes-Raman scattering after calibration. The measured trends in temperature over the first 5 s of evaporation are found to be in agreement with theoretical calculations of the heat and mass transfer rates.",

keywords = "AEROSOL-PARTICLES, MASS-TRANSFER, MICROPARTICLES, LEVITATION, FREQUENCY, TRAP, HEAT",

author = "Christian Heinisch and Wills, {Jon B.} and Reid, {Jonathan P.} and Theo Tschudi and Cameron Tropea",

year = "2009",

doi = "10.1039/b908555f",

language = "English",

volume = "11",

pages = "9720--9728",

journal = "Physical Chemistry Chemical Physics",

issn = "1463-9076",

publisher = "Royal Society of Chemistry",

number = "42",

}

TY - JOUR

T1 - Temperature measurement of single evaporating water droplets in a nitrogen flow using spontaneous Raman scattering

AU - Heinisch, Christian

AU - Wills, Jon B.

AU - Reid, Jonathan P.

AU - Tschudi, Theo

AU - Tropea, Cameron

PY - 2009

Y1 - 2009

N2 - The evaporation dynamics of stationary water droplets held within an electrodynamic trap are investigated in a nitrogen flow of variable velocity. In particular, the influence of the nitrogen gas flow on the temperature of the evaporating water droplets is studied. By applying a contact free measurement technique, based on spontaneous Raman scattering, time averaged and time resolved measurements of temperature in the droplet volume are compared. This technique determines the temperature from an intensity ratio in the OH stretching band of the Stokes-Raman scattering after calibration. The measured trends in temperature over the first 5 s of evaporation are found to be in agreement with theoretical calculations of the heat and mass transfer rates.

AB - The evaporation dynamics of stationary water droplets held within an electrodynamic trap are investigated in a nitrogen flow of variable velocity. In particular, the influence of the nitrogen gas flow on the temperature of the evaporating water droplets is studied. By applying a contact free measurement technique, based on spontaneous Raman scattering, time averaged and time resolved measurements of temperature in the droplet volume are compared. This technique determines the temperature from an intensity ratio in the OH stretching band of the Stokes-Raman scattering after calibration. The measured trends in temperature over the first 5 s of evaporation are found to be in agreement with theoretical calculations of the heat and mass transfer rates.

KW - AEROSOL-PARTICLES

KW - MASS-TRANSFER

KW - MICROPARTICLES

KW - LEVITATION

KW - FREQUENCY

KW - TRAP

KW - HEAT

U2 - 10.1039/b908555f

DO - 10.1039/b908555f

M3 - Article (Academic Journal)

C2 - 19851549

SN - 1463-9076

VL - 11

SP - 9720

EP - 9728

JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

IS - 42

ER -

Temperature measurement of single evaporating water droplets in a nitrogen flow using spontaneous Raman scattering

Abstract

Keywords

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