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Mapping surface biofilms to improve the efficiency of water conveyance


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Osborn, J, Bae, Y-S, Grenness, MJ, Sargison, JE, Barton, AF, Sprent, A, Walker, GJ and Bendall, T 2005 , 'Mapping surface biofilms to improve the efficiency of water conveyance', paper presented at the SSC2005 - Innovation and Praxis: The national biennial Conference of the Spatial Sciences Institute, September 2005, Melbourne.

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Hydroelectric power systems use pipes and open channels to convey water over distances from a few hundred metres to many kilometres. The efficiency of water conveyance in these systems is affected by the surface roughness. Contributing factors are the surface roughness of the construction material or its coating, and the roughness caused by biofilms that accumulate over time on the surface. This paper describes photogrammetric methods that are being developed to measure the surface roughness of pipes and open channels in the Tasmanian hydroelectric power system, and to monitor the accumulation of biofilms. This work contributes to a cross-disciplinary study of biofilm accumulation and conveyance efficiency in hydroelectric power systems.

Item Type: Conference or Workshop Item (Paper)
Authors/Creators:Osborn, J and Bae, Y-S and Grenness, MJ and Sargison, JE and Barton, AF and Sprent, A and Walker, GJ and Bendall, T
Keywords: Biofouling, biofilms, close-range photogrammetry, roughness, headloss, hydro-electric
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