Modification of gas flow by charged particles

Roger J. Peterson; Jane H. Davidson

Modification of gas flow by charged particles

Roger J. Peterson
, Jane H. Davidson

Mechanical Engineering

Research output: Contribution to journal › Conference article › peer-review

4 Scopus citations

Abstract

The effect of micron-diameter charged particles on gas flow characteristics in an uniform electric field is experimentally investigated in a rectangular duct at 0.8 m/s and flow Reynolds number of 2600. Particles are uniformly distributed in the flow at 10^-5 kg/m³. Hot-film measurements of streamwise gas flow characteristics, including mean velocity, turbulence intensity, and energy spectra, of a particle-free flow are compared to those of the gas-particle flow. Effects of uncharged particles and charged particles subject to no electric field and 5.5 kV/cm are evaluated. Results show that at these concentrations, charged particles do not modify the gas flow. Comparison of test conditions to particle concentrations at the exit of industrial electrostatic precipitators indicates that charged particle induced turbulence is also negligible in these devices. Efforts to reduce electrically generated turbulence in precipitators should continue to focus on control of the ionic body force acting on the gas.

Original language	English (US)
Pages (from-to)	1513-1518
Number of pages	6
Journal	Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)
Volume	2
State	Published - Dec 1 1994
Event	Proceedings of the 29th IAS Annual Meeting. Part 3 (of 3) - Denver, CO, USA Duration: Oct 2 1994 → Oct 5 1994

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@article{13b50c10e8424fd397af267ca0c8677f,

title = "Modification of gas flow by charged particles",

abstract = "The effect of micron-diameter charged particles on gas flow characteristics in an uniform electric field is experimentally investigated in a rectangular duct at 0.8 m/s and flow Reynolds number of 2600. Particles are uniformly distributed in the flow at 10-5 kg/m3. Hot-film measurements of streamwise gas flow characteristics, including mean velocity, turbulence intensity, and energy spectra, of a particle-free flow are compared to those of the gas-particle flow. Effects of uncharged particles and charged particles subject to no electric field and 5.5 kV/cm are evaluated. Results show that at these concentrations, charged particles do not modify the gas flow. Comparison of test conditions to particle concentrations at the exit of industrial electrostatic precipitators indicates that charged particle induced turbulence is also negligible in these devices. Efforts to reduce electrically generated turbulence in precipitators should continue to focus on control of the ionic body force acting on the gas.",

author = "Peterson, \{Roger J.\} and Davidson, \{Jane H.\}",

year = "1994",

month = dec,

day = "1",

language = "English (US)",

volume = "2",

pages = "1513--1518",

journal = "Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)",

issn = "0197-2618",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

note = "Proceedings of the 29th IAS Annual Meeting. Part 3 (of 3) ; Conference date: 02-10-1994 Through 05-10-1994",

}

TY - JOUR

T1 - Modification of gas flow by charged particles

AU - Peterson, Roger J.

AU - Davidson, Jane H.

PY - 1994/12/1

Y1 - 1994/12/1

N2 - The effect of micron-diameter charged particles on gas flow characteristics in an uniform electric field is experimentally investigated in a rectangular duct at 0.8 m/s and flow Reynolds number of 2600. Particles are uniformly distributed in the flow at 10-5 kg/m3. Hot-film measurements of streamwise gas flow characteristics, including mean velocity, turbulence intensity, and energy spectra, of a particle-free flow are compared to those of the gas-particle flow. Effects of uncharged particles and charged particles subject to no electric field and 5.5 kV/cm are evaluated. Results show that at these concentrations, charged particles do not modify the gas flow. Comparison of test conditions to particle concentrations at the exit of industrial electrostatic precipitators indicates that charged particle induced turbulence is also negligible in these devices. Efforts to reduce electrically generated turbulence in precipitators should continue to focus on control of the ionic body force acting on the gas.

AB - The effect of micron-diameter charged particles on gas flow characteristics in an uniform electric field is experimentally investigated in a rectangular duct at 0.8 m/s and flow Reynolds number of 2600. Particles are uniformly distributed in the flow at 10-5 kg/m3. Hot-film measurements of streamwise gas flow characteristics, including mean velocity, turbulence intensity, and energy spectra, of a particle-free flow are compared to those of the gas-particle flow. Effects of uncharged particles and charged particles subject to no electric field and 5.5 kV/cm are evaluated. Results show that at these concentrations, charged particles do not modify the gas flow. Comparison of test conditions to particle concentrations at the exit of industrial electrostatic precipitators indicates that charged particle induced turbulence is also negligible in these devices. Efforts to reduce electrically generated turbulence in precipitators should continue to focus on control of the ionic body force acting on the gas.

UR - https://www.scopus.com/pages/publications/0028734236

UR - https://www.scopus.com/pages/publications/0028734236#tab=citedBy

M3 - Conference article

AN - SCOPUS:0028734236

SN - 0197-2618

VL - 2

SP - 1513

EP - 1518

JO - Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)

JF - Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)

T2 - Proceedings of the 29th IAS Annual Meeting. Part 3 (of 3)

Y2 - 2 October 1994 through 5 October 1994

ER -

Modification of gas flow by charged particles

Abstract

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