Interaction of an Eulerian flue gas plume with wind turbines

Timothy M. Fletcher, R.E. Brown

Research output: Contribution to conferencePaper

Abstract

The reduced availability of sites with the requisite wind resource, planning permission and public acceptance for the placement of wind turbines poses a significant challenge to future expansion of the wind energy industry. Developers increasingly wish to site large turbines in close proximity to industrial plants, but there is uncertainty amongst environmental protection agencies on how best to measure and regulate the impact that wind turbines may have on the dispersion of the gases that are often emitted into the atmosphere from such plants. Several simplified wind turbine-flue stack configurations have been simulated using the Vorticity Transport Model. This model provides a high-fidelity representation of the vortical flow structure within both the wind turbine wake and the plume, and is able to capture the re-direction and dispersion of the plume that occurs due to interaction with the wind turbine. The impingement of the plume on the wind turbine is shown to disrupt the wake structure downwind of the wind turbine, and may induce additional unsteady loading on the turbine rotor. The velocity deficit downwind of the wind turbine influences the rate at which the plume propagates downwind, and results in an increase in the concentration of plume material (which may include pollutant gas and particulates) around the wind turbine. This localized increase in plume concentration is shown to be sensitive to the thrust coefficient at which the wind turbine is operated. The results presented in this paper show that environmental protection agencies are justified in their concerns regarding the placement of wind turbines near to industrial plants, and suggests strongly that the interaction between wind turbines and gas plumes should be investigated further.
LanguageEnglish
Publication statusPublished - 4 Jan 2010
Event29th ASME Wind Energy Symposium - Orlando, Florida
Duration: 4 Jan 20107 Jan 2010

Conference

Conference29th ASME Wind Energy Symposium
CityOrlando, Florida
Period4/01/107/01/10

Fingerprint

Flue gases
Wind turbines
Environmental Protection Agency
Industrial plants
Turbines
Gases
Flow structure
Vorticity
Wind power
Rotors
Availability
Planning

Keywords

  • wind turbines
  • flue stack configurations
  • vorticity transport model
  • gas plumes

Cite this

Fletcher, T. M., & Brown, R. E. (2010). Interaction of an Eulerian flue gas plume with wind turbines. Paper presented at 29th ASME Wind Energy Symposium, Orlando, Florida, .
Fletcher, Timothy M. ; Brown, R.E. / Interaction of an Eulerian flue gas plume with wind turbines. Paper presented at 29th ASME Wind Energy Symposium, Orlando, Florida, .
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Fletcher, TM & Brown, RE 2010, 'Interaction of an Eulerian flue gas plume with wind turbines' Paper presented at 29th ASME Wind Energy Symposium, Orlando, Florida, 4/01/10 - 7/01/10, .

Interaction of an Eulerian flue gas plume with wind turbines. / Fletcher, Timothy M.; Brown, R.E.

2010. Paper presented at 29th ASME Wind Energy Symposium, Orlando, Florida, .

Research output: Contribution to conferencePaper

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T1 - Interaction of an Eulerian flue gas plume with wind turbines

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PY - 2010/1/4

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AB - The reduced availability of sites with the requisite wind resource, planning permission and public acceptance for the placement of wind turbines poses a significant challenge to future expansion of the wind energy industry. Developers increasingly wish to site large turbines in close proximity to industrial plants, but there is uncertainty amongst environmental protection agencies on how best to measure and regulate the impact that wind turbines may have on the dispersion of the gases that are often emitted into the atmosphere from such plants. Several simplified wind turbine-flue stack configurations have been simulated using the Vorticity Transport Model. This model provides a high-fidelity representation of the vortical flow structure within both the wind turbine wake and the plume, and is able to capture the re-direction and dispersion of the plume that occurs due to interaction with the wind turbine. The impingement of the plume on the wind turbine is shown to disrupt the wake structure downwind of the wind turbine, and may induce additional unsteady loading on the turbine rotor. The velocity deficit downwind of the wind turbine influences the rate at which the plume propagates downwind, and results in an increase in the concentration of plume material (which may include pollutant gas and particulates) around the wind turbine. This localized increase in plume concentration is shown to be sensitive to the thrust coefficient at which the wind turbine is operated. The results presented in this paper show that environmental protection agencies are justified in their concerns regarding the placement of wind turbines near to industrial plants, and suggests strongly that the interaction between wind turbines and gas plumes should be investigated further.

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Fletcher TM, Brown RE. Interaction of an Eulerian flue gas plume with wind turbines. 2010. Paper presented at 29th ASME Wind Energy Symposium, Orlando, Florida, .