Determination of kite forces using three-dimensional flight trajectories for ship propulsion
Determination of kite forces using three-dimensional flight trajectories for ship propulsion
For application of kites to ships for power and propulsion, a scheme for predicting time averaged kite forces is required. This paper presents a method for parameterizing figure of eight shape kite trajectories and for predicting kite velocity, force and other performance characteristics. Results are presented for a variety of maneuver shapes, assuming realistic performance characteristics from an experimental test kite. Using a 300 m2 kite, with 300 m long flying lines in 6.18 ms-1 wind, a time averaged propulsive force of 16.7 tonne is achievable. A typical kite force polar is presented and a sensitivity study is carried out to identify the importance of various parameters in the ship kite propulsion system. Small horizontally orientated figure of eight shape kite trajectories centred on an elevation of 15° is preferred for maximizing propulsive benefit. Propulsive force is found to be highly sensitive to aspect ratio. Increasing aspect ratio from 4 to 5 is estimated to yield up to 15% more drive force
kite dynamics, trajectories, ship propulsion, optimisation, experiment, reduced fuel consumption
2667-2678
Dadd, George M.
ea26a6f8-2f89-45f8-8e4f-1d6d32755be6
Hudson, Dominic A.
3814e08b-1993-4e78-b5a4-2598c40af8e7
Shenoi, R.A.
a37b4e0a-06f1-425f-966d-71e6fa299960
21 April 2011
Dadd, George M.
ea26a6f8-2f89-45f8-8e4f-1d6d32755be6
Hudson, Dominic A.
3814e08b-1993-4e78-b5a4-2598c40af8e7
Shenoi, R.A.
a37b4e0a-06f1-425f-966d-71e6fa299960
Dadd, George M., Hudson, Dominic A. and Shenoi, R.A.
(2011)
Determination of kite forces using three-dimensional flight trajectories for ship propulsion.
Renewable Energy, 36 (10), .
(doi:10.1016/j.renene.2011.01.027).
Abstract
For application of kites to ships for power and propulsion, a scheme for predicting time averaged kite forces is required. This paper presents a method for parameterizing figure of eight shape kite trajectories and for predicting kite velocity, force and other performance characteristics. Results are presented for a variety of maneuver shapes, assuming realistic performance characteristics from an experimental test kite. Using a 300 m2 kite, with 300 m long flying lines in 6.18 ms-1 wind, a time averaged propulsive force of 16.7 tonne is achievable. A typical kite force polar is presented and a sensitivity study is carried out to identify the importance of various parameters in the ship kite propulsion system. Small horizontally orientated figure of eight shape kite trajectories centred on an elevation of 15° is preferred for maximizing propulsive benefit. Propulsive force is found to be highly sensitive to aspect ratio. Increasing aspect ratio from 4 to 5 is estimated to yield up to 15% more drive force
This record has no associated files available for download.
More information
Published date: 21 April 2011
Keywords:
kite dynamics, trajectories, ship propulsion, optimisation, experiment, reduced fuel consumption
Organisations:
Engineering Science Unit, Fluid Structure Interactions Group
Identifiers
Local EPrints ID: 183895
URI: http://eprints.soton.ac.uk/id/eprint/183895
ISSN: 0960-1481
PURE UUID: 32a63bfb-5b88-452b-bda2-e5fa14039803
Catalogue record
Date deposited: 04 May 2011 13:39
Last modified: 15 Mar 2024 02:48
Export record
Altmetrics
Contributors
Author:
George M. Dadd
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
