The effect of blade depth ratio on the performance of in-stream water wheels

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dc.contributor.authorBrandon-Toole, M.
dc.contributor.authorBirzer, C.
dc.contributor.authorKelso, R.
dc.date.issued2023
dc.descriptionAvailable online 10 November 2023
dc.description.abstractThe power characteristics of an in-stream water wheel were measured experimentally to explore the influence of the blade depth ratio. The blade depth ratio has a significant effect on the performance of in-stream water wheels, but its influence has been overlooked throughout the literature. It was determined that the blade depth ratio has a greater impact on the power production than the number of blades at all tip-speed ratios. However, the variation between the maximum and minimum available power is greater at high blade depth ratios, so it is important to understand the relationship between the blade depth ratio and tip-speed ratio. Analysis of velocity triangles determined that at the inlet and outlet, the turbine blade contributes negatively to net torque. This effect is increased at higher blade depth ratios. It was also determined that the peak dry coefficient of power is linearly proportional to the blade submergence ratio, which is a measure of the total submerged blade area. This investigation progresses research in this area by highlighting an overlooked parameter and experimentally determining its influence on power characteristics.
dc.description.statementofresponsibilityMatthew Brandon-Toole, Cristian Birzer, Richard Kelso
dc.identifier.citationEnergy for Sustainable Development: the journal of the international energy initiative, 2023; 77:101346-1-101346-10
dc.identifier.doi10.1016/j.esd.2023.101346
dc.identifier.issn0973-0826
dc.identifier.issn2352-4669
dc.identifier.orcidBrandon-Toole, M. [0000-0002-0641-0700]
dc.identifier.orcidBirzer, C. [0000-0002-7051-9137]
dc.identifier.orcidKelso, R. [0000-0002-5783-9232]
dc.identifier.urihttps://hdl.handle.net/2440/140285
dc.language.isoen
dc.publisherElsevier
dc.rights© 2023 The Author(s). Published by Elsevier Inc. on behalf of International Energy Initiative. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
dc.source.urihttps://doi.org/10.1016/j.esd.2023.101346
dc.subjectPico hydropower; In-stream water wheels; Sustainable Development Goals; Rural electrification; Blade depth ratio
dc.titleThe effect of blade depth ratio on the performance of in-stream water wheels
dc.typeJournal article
pubs.publication-statusPublished

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