Water Current Turbines for River Applications - Alaska Energy ...

More documents

Recommendations

Info

WCT EvaluationNRCan-06-01071ENEMARwith Kobold Turbine- PONTE DI ARCHIMEDE S.P. A. (Italy)Technology: The ENEMAR system uses a Kobold turbine that was modified by the Aircraft Design andAeroflight Dynamics Group (ADAG), part of the Department of Aeronautical Engineering at theUniversity of Naples. The Kobold Turbine is a vertically oriented, cross-axis turbine with three straightblades. It is mounted under a buoy and moored with cables to four anchors.Application: The turbine is designed to operate in rivers, tidal, and ocean currents.Stage of Development: Field research and experiments were conducted on a pre-commercial model witha turbine 6 meters in diameter and blades 5 meters tall. It was installed in the Messina Strait, Italy inspring 2001. It generated 25 kW at 2.0 m/s.Currently the company is identifying other sites in Europe suitable for producing electrical energygenerated by marine currents. Together with the Institute of Energy Conversion of the Chinese Academyof Sciences, studies regarding the application of the ENERMAR system are currently in progress in theStrait of Jintang (Zhoushan Archipelago), People's Republic of China.Verdant Power Canada ULC 22
WCT EvaluationNRCan-06-01071En Current Hydro Turbine - NEW ENERGY CORPORATION, Inc (Canada)Technology: The EnCurrent turbine is a vertical axis Darrieus cross-axis turbine, available in bothducted and non-ducted configurations. The non-ducted configuration uses a 1.6 m diameter x 0.8m tallturbine and requires a minimum water velocity of 2 m/s to provide effective power output. The ductedversion places that turbine in a 3.0 m wide by 1.0 m tall duct which reduces the minimum water velocityto 1.5 m/s. EnCurrent technology builds on work carried out by the National Research Council Canada(NRC) on a Vertical Axis Hydro Turbine. During the 1980s, NRC launched a program to demonstratethe technical validity of the Vertical Axis Hydro Turbine, terminating the program at the point they feltthe technology was ready for commercialization by the private sector. Based on the design of theDarrieus Wind Turbine, New Energy’s turbine is able to extract 40% to 45% of the energy in the watermoving through it. One of the unique economic and design advantages of the Darrieus Turbine design isthat it can capture kinetic energy from the water irrespective of the current direction. This propertyenables the New Energy turbine to harness the energy contained in both flood and ebb tides.Furthermore, slowly rotating turbine blades are expected to eliminate fish kill at installations.The company is currently offering a 5 kW model with plans to introduce a 25 kW model early in 2006,extending to larger sizes in subsequent years. Power output versus velocity curves are shown below:Application: New Energy Corporation, Inc. is primarily focused on offgridmini and micro hydro markets. The company identifies this market asoff-grid homeowners or businesses located in close proximity to a stream,river or tidal flow and requiring greater than 5 kW but less than 1 MW ofgenerating capacity. The company has a secondary focus on the gridconnected distributed energy market, mainly in locations where man-madewaterworks can beutilized for the generationof hydroelectric power.Man-madewaterworksrefers to structures thathave been designed andbuilt to convey water,such as irrigation canalsand effluent dischargecanals within industrial complexes.Stage of Development: New Energy Corporation now makes and sells water-to-wire production units.Verdant Power Canada ULC 23
Page 1 and 2: Technology EvaluationofExisting and
Page 3 and 4: WCT EvaluationNRCan-06-010713.3.3 P
Page 5 and 6: WCT Evaluation1 IntroductionNRCan-0
Page 7 and 8: WCT EvaluationNRCan-06-010712.2 Gen
Page 9 and 10: WCT Evaluation3 Companies and Techn
Page 11 and 12: WCT EvaluationNew EnergyBlue Energy
Page 13 and 14: WCT EvaluationNRCan-06-01071Amazon
Page 15 and 16: WCT EvaluationNRCan-06-01071Tidal T
Page 17 and 18: WCT EvaluationNRCan-06-01071Hydrore
Page 19 and 20: WCT EvaluationNRCan-06-01071Tidal S
Page 21: WCT EvaluationNRCan-06-01071Cross-A
Page 25 and 26: WCT EvaluationNRCan-06-01071Gorlov
Page 27 and 28: WCT EvaluationNRCan-06-01071CycloTu
Page 29 and 30: WCT Evaluation3.3.3 PaddlewheelsFlo
Page 31 and 32: WCT Evaluation3.3.4 Hydraulically T
Page 33 and 34: WCT Evaluation3.3.6 Flutter VanesNR
Page 35 and 36: WCT EvaluationNRCan-06-01071Hydro V
Page 37 and 38: WCT EvaluationNRCan-06-010715.2 Com
Page 39 and 40: WCT Evaluation6 Canada in Perspecti
Page 41 and 42: WCT EvaluationNRCan-06-010716.3 Can
Page 43 and 44: WCT EvaluationAppendix 1 -- Definit
Page 45 and 46: WCT EvaluationNRCan-06-01071Appendi
Page 47 and 48: WCT EvaluationPEEHR http://www.peeh

Water Current Turbines for River Applications - Alaska Energy ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?