Author: Marianne Dupont, Pitance Denis, Joanna Kluczewska-Bordier, Alexandre Immas, Paul DeglairePublication: WindEurope Conference, At AmsterdamYear Published: 2017 NENUPHAR, in collaboration with IRT Jules Verne and ECN (Ecole Centrale de Nantes) has performed extensive testing in a large wind tunnel (CSTB, Nantes) of a scaled-model of a two-bladed VAWT in the frame of the “MOQUA” project.…
Author: Nicolas Parneix, Rosalie Fuchs, Alexandre Immas, Frederic Silvert, Paul DeglairePublication: EWEAYear Published: 2016 Improving the performance of Vertical Axis Wind Turbines (VAWTs) is key to make VAWTs commercially successful. Scientists have investigated several interesting concepts for that purpose: increasing the swept area, especially to limit the losses due to 3D effects, or using flap…
Author: Raphael ConeuPublication: KTHYear Published: 2017 This thesis presents the analysis of the data measured during the test campaign of a vertical axis wind turbine prototype developed by the company Nenuphar Wind in France. Three studies are presented: the study of the loads measured during the test campaign, the study of the vibrations, and the…
Author: Marius Paraschivoiu, Chad X. Zhang, Selvanayagam Jeyatharsan, Norbert V. Dy, Farooq Saeed, Robert N. Thomas, Ion ParaschivoiuPublication: IOPARA, Inc.Year Published: 2011 This paper presents an analysis based on computational fluid dynamics of vertical axis wind turbines when placed in close proximity in a linear array. It has been noticed that VAWTs placed close to…
Author: Ion ParaschivoiuPublication: Wind Harvest InternationalYear Published: 2010
Author: Ian Brownstein, Nathaniel Wei and John DabiriPublication: EnergiesYear Published: 2019 This study examined three-dimensional, volumetric mean velocity fields and corresponding performance measurements for an isolated vertical-axis wind turbine (VAWT) and for co- and counter-rotating pairs of VAWTs with varying incident wind direction and turbine spacings. The purpose was to identify turbine configurations and flow…
Author: Dr. Ion Paraschivoiu (with comments by Robert N Thomas, Dr. Farooq Saeed, and Norbert V. Dy)Publication: IOPARA, Inc.Year Published: 2009 This report is a compilation of the aerodynamic analyses of the Wind Harvest International (WHI) wind turbine Model WHI 3000 at wind speeds < 7.15 m/s (16 mph) in isolated and multiple configuration settings.…
Author: Dr. Ion Paraschivoiu (with comments by Robert N Thomas, Dr. Farooq Saeed, and Norbert V. Dy)Publication: IOPARA, Inc.Year Published: 2009 This report is a compilation of the aerodynamic analyses of the Wind Harvest International (WHI) wind turbines, Model WHI 530 and WHI 1500, in isolated and multiple configuration settings. The aerodynamic analyses were carried…
All of California’s wind farms–6000+ megawatts producing 15,200 gigawatt-hours (GWh) annually as of 2021–are on land already zoned for wind energy production. Wind Harvest estimates that, if fully built out on existing wind farms in the Wind Resource Areas, H-type vertical axis wind turbines (VAWTs) could add 10 GW of capacity and about 31,500 GWh of…
Author: Robert Whittlesey, Sebastian Liska, and John DabiriPublication: California Institute of TechnologyYear Published: 2010 Most wind farms consist of horizontal axis wind turbines (HAWTs) due to the high power coefficient (mechanical power output divided by the power of the free-stream air through the turbine cross-sectional area) of an isolated turbine. However when in close proximity…