Author: Ion ParaschivoiuPublication: Polytechnic International PressYear Published: 2002 The depletion of global fossil fuel reserves combined with mounting environmental concerns has served to focus attention on the development of ecologically compatible and renewable alternative sources of energy. Wind energy, with its impressive growth rate of 40% over the last five years, is the fastest growing…
Author: Lucas Desadze, Drew Digeser, Christopher Dunn, Dillon ShoikatPublication: Worcester Polytechnic InstituteYear Published: 2013 This project studied the potential for installing roof-mounted vertical axis wind turbine (VAWT) systems on house roofs. The project designed several types of VAWT blades with the goal of maximizing the efficiency of a shrouded turbine. The project also used a…
Author: Christos Galinos, Torben Larsen, Helge Madsen, Uwe PaulsenPublication: Energy ProcediaYear Published: 2016 The paper studies the applicability of the IEC 61400-1 ed.3, 2005 International Standard of wind turbine minimum design requirements in the case of an onshore Darrieus VAWT and compares the results of basic Design Load Cases (DLCs) with those of a3-bladed HAWT.…
Author: M. El-Samanoudy, A.A.E Ghorab, Sh.Z. Youssef, Ain ShamsPublication: Ain Jams Engineering JYear Published: 2010 This paper describes the effect of some design parameters on the performance of a Giro-mill vertical axis wind turbine. A Giromill wind turbine has been designed, manufactured and tested. The turbine performance has been investigated with varying the design parameters…
Author: Sonali Mitra, Abhineet Singh, Pragyan Jain, S. V. H. NagendraPublication: Int J Energy Environ EngYear Published: 2014 This work analyses the link between the aspect ratio of a vertical-axis straight-bladed (H-Rotor) wind turbine and its performance (power coefficient). The aspect ratio of this particular wind turbine is defined as the ratio between blade length…
Author: L.A. Schiehbein, David MalcolmYear Published: 1982 A review of the development and performance of the DAF Indal 50 kW vertical axis Darrieus wind turbines shows that a high level of technical development and reliability has been achieved. Features of the drive train, braking and control systems are discussed and performance details are presented.
Author: S. Brusca, R. Lanzafame, M. MessinaPublication: Int J Energy Environ EngYear Published: 2014 This work analyses the link between the aspect ratio of a vertical-axis straight-bladed (H-Rotor) wind turbine and its performance (power coefficient). The aspect ratio of this particular wind turbine is defined as the ratio between blade length and rotor radius. Since…
Author: Chaianant Sranpat, Suchaya Unsakul, Premchai Choljararux, Thananchai LeephakpreedaPublication: Energy ProcediaYear Published: 2017 This paper presents effects of design factors on mechanical performances of Vertical Axis Wind Turbines (VAWTs), which are suitable to low wind speeds conditions in Thailand. Potential VAWTs models are numerically analyzed within virtual wind tunnels at low wind speeds by utilizing…
Author: Kevin WolfPublication: Windpower Engineering & DevelopmentYear Published: 2018 Wind farms in California and other regions of the world exist only in relatively small geographic regions.1 Most of these resource areas have reached their physical or political2 limits in their ability to install additional propeller-type, horizontal axis wind turbines (HAWTs).3 Nonetheless, many have topographies that…
Author: David Malcolm and Antonio OjedaPublication: Wind Harvest InternationalYear Published: 2017 This document describes the methodology followed for the structural design of Wind Harvester turbine v3.1 to be installed in Denmark ins 2020. It includes a description of the various computer models used in the design procedure and of the Design Load Cases selected for…