A Novel Implementation of Wind Energy in Buildings Based on Synthetic Jet Concept

Gabriele Bedon, Stefano De Betta, Hagar Elarga, Michele de Carli, Ernesto Benini

Research output: Contribution to conferencePaperResearch

Abstract

The flow around the baseline building is compared to the flow pattern obtained by introducing an air duct on the top of it, which is blowing a fixed air mass flow rate (the jet). The energy required to produce this jet is not considered since it is presumed to be already available from other sources (e.g. ventilation system). Different jet mass outflows are varied in order to find the optimal set to obtain a flow reattachment after the separation at the building edge. The simulation is conducted by means of validated Computational Fluid Dynamics (CFD) solvers based on Reynolds Average Navier-Stokes (RANS) equations. Two- and three-dimensional domains are considered and validated against experimental results. The duct is modelled in the three-dimensional CFD simulation and considered as a velocity inlet. The analysis provided the velocity profiles on different positions on the roof: a reduction in the flow separation would enable an installation of a wind turbine with a lower support and the interception of a uniform accelerated wind speed provided by the hill effect.
Original languageEnglish
Publication date2015
Number of pages8
Publication statusPublished - 2015
Externally publishedYes
EventEWEA Annual Conference and Exhibition 2015 - Paris, France
Duration: 17 Nov 201520 Nov 2015

Conference

ConferenceEWEA Annual Conference and Exhibition 2015
CountryFrance
CityParis
Period17/11/201520/11/2015

Keywords

  • Building fluid-dynamics
  • Synthetic jet
  • 2D RANS CFD
  • 3D RANS CFD
  • Wind Turbines

Cite this

Bedon, G., De Betta, S., Elarga, H., de Carli, M., & Benini, E. (2015). A Novel Implementation of Wind Energy in Buildings Based on Synthetic Jet Concept. Paper presented at EWEA Annual Conference and Exhibition 2015 , Paris, France.
Bedon, Gabriele ; De Betta, Stefano ; Elarga, Hagar ; de Carli, Michele ; Benini, Ernesto. / A Novel Implementation of Wind Energy in Buildings Based on Synthetic Jet Concept. Paper presented at EWEA Annual Conference and Exhibition 2015 , Paris, France.8 p.
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title = "A Novel Implementation of Wind Energy in Buildings Based on Synthetic Jet Concept",
abstract = "The flow around the baseline building is compared to the flow pattern obtained by introducing an air duct on the top of it, which is blowing a fixed air mass flow rate (the jet). The energy required to produce this jet is not considered since it is presumed to be already available from other sources (e.g. ventilation system). Different jet mass outflows are varied in order to find the optimal set to obtain a flow reattachment after the separation at the building edge. The simulation is conducted by means of validated Computational Fluid Dynamics (CFD) solvers based on Reynolds Average Navier-Stokes (RANS) equations. Two- and three-dimensional domains are considered and validated against experimental results. The duct is modelled in the three-dimensional CFD simulation and considered as a velocity inlet. The analysis provided the velocity profiles on different positions on the roof: a reduction in the flow separation would enable an installation of a wind turbine with a lower support and the interception of a uniform accelerated wind speed provided by the hill effect.",
keywords = "Building fluid-dynamics, Synthetic jet, 2D RANS CFD, 3D RANS CFD, Wind Turbines",
author = "Gabriele Bedon and {De Betta}, Stefano and Hagar Elarga and {de Carli}, Michele and Ernesto Benini",
year = "2015",
language = "English",
note = "EWEA Annual Conference and Exhibition 2015 ; Conference date: 17-11-2015 Through 20-11-2015",

}

Bedon, G, De Betta, S, Elarga, H, de Carli, M & Benini, E 2015, 'A Novel Implementation of Wind Energy in Buildings Based on Synthetic Jet Concept' Paper presented at EWEA Annual Conference and Exhibition 2015 , Paris, France, 17/11/2015 - 20/11/2015, .

A Novel Implementation of Wind Energy in Buildings Based on Synthetic Jet Concept. / Bedon, Gabriele; De Betta, Stefano ; Elarga, Hagar; de Carli, Michele; Benini, Ernesto.

2015. Paper presented at EWEA Annual Conference and Exhibition 2015 , Paris, France.

Research output: Contribution to conferencePaperResearch

TY - CONF

T1 - A Novel Implementation of Wind Energy in Buildings Based on Synthetic Jet Concept

AU - Bedon, Gabriele

AU - De Betta, Stefano

AU - Elarga, Hagar

AU - de Carli, Michele

AU - Benini, Ernesto

PY - 2015

Y1 - 2015

N2 - The flow around the baseline building is compared to the flow pattern obtained by introducing an air duct on the top of it, which is blowing a fixed air mass flow rate (the jet). The energy required to produce this jet is not considered since it is presumed to be already available from other sources (e.g. ventilation system). Different jet mass outflows are varied in order to find the optimal set to obtain a flow reattachment after the separation at the building edge. The simulation is conducted by means of validated Computational Fluid Dynamics (CFD) solvers based on Reynolds Average Navier-Stokes (RANS) equations. Two- and three-dimensional domains are considered and validated against experimental results. The duct is modelled in the three-dimensional CFD simulation and considered as a velocity inlet. The analysis provided the velocity profiles on different positions on the roof: a reduction in the flow separation would enable an installation of a wind turbine with a lower support and the interception of a uniform accelerated wind speed provided by the hill effect.

AB - The flow around the baseline building is compared to the flow pattern obtained by introducing an air duct on the top of it, which is blowing a fixed air mass flow rate (the jet). The energy required to produce this jet is not considered since it is presumed to be already available from other sources (e.g. ventilation system). Different jet mass outflows are varied in order to find the optimal set to obtain a flow reattachment after the separation at the building edge. The simulation is conducted by means of validated Computational Fluid Dynamics (CFD) solvers based on Reynolds Average Navier-Stokes (RANS) equations. Two- and three-dimensional domains are considered and validated against experimental results. The duct is modelled in the three-dimensional CFD simulation and considered as a velocity inlet. The analysis provided the velocity profiles on different positions on the roof: a reduction in the flow separation would enable an installation of a wind turbine with a lower support and the interception of a uniform accelerated wind speed provided by the hill effect.

KW - Building fluid-dynamics

KW - Synthetic jet

KW - 2D RANS CFD

KW - 3D RANS CFD

KW - Wind Turbines

M3 - Paper

ER -

Bedon G, De Betta S, Elarga H, de Carli M, Benini E. A Novel Implementation of Wind Energy in Buildings Based on Synthetic Jet Concept. 2015. Paper presented at EWEA Annual Conference and Exhibition 2015 , Paris, France.