Giromill Overview

Technical Report · Fri Jun 01 00:00:00 EDT 1979

DOI:https://doi.org/10.2172/6046045· OSTI ID:6046045

McConnell, Robert D.

The Giromill is a vertical axis wind turbine having straight airfoils whose angles of attack are controlled so as to maximize wind energy conversion. Each airfoil is rocked during a revolution in order to maintain a constant positive angle of attack over one half revolution and a constant negative value over the other half revolution. McDonnell Aircraft Company completed a feasibility study of the Giromill in 1976. Their initial work was followed by model tests in a wind tunnel in 1976 and 1977. Presently the Pump Division of Valley Industries, Inc., is cooperating with McDonnell Aircraft to design, build, and deliver a 40-kW (8.9-m/s) Giromill for the US Department of Energy. Delivery to Rocky Flats is scheduled for the end of 1979. In addition to describing the above work, an evaluation of the Giromill concept in terms of some wind energy rules-of-thumb is presented.

• Research Organization: National Renewable Energy Lab. (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE)
• DOE Contract Number: AC36-08GO28308
• OSTI ID: 6046045
• Report Number(s): SERI/TP-35-263
• Resource Relation: Conference: Wind energy innovative systems conference, Colorado Springs, CO, USA, 23 May 1979
• Country of Publication: United States
• Language: English

Related Subjects

17 WIND ENERGY
GIROMILL TURBINES
COST
SPECIFICATIONS
COMPARATIVE EVALUATIONS
ECONOMICS
PERFORMANCE
VERTICAL AXIS TURBINES
WIND TURBINES
Giromill turbines
cost
specifications
comparative evaluations
170602* - Wind Energy Engineering- Turbine Design & Operation
170400 - Wind Energy- Economic
Industrial
& Business Aspects