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Waterhammer solutions
13 October, 2006
Small hydro plant designers often choose long penstocks instead of the traditional 'open channel' option, as they can be cheaper, quickly installed, and easier to maintain. However, these longer penstocks are usually affected by waterhammer phenomena, which must be faced with great care and suitable calculation models to verify in a reliable way that the stresses remain in a correct range – as was the case with one small hydro scheme in Italy
Slope instability at small hydro schemes
14 September, 2006
Ian Uglow considers the impact of slope instability on small hydroelectric schemes with particular reference to peat soils
Systemising small turbines
30 August, 2006
Since 1997, a Swiss company has been working on the development of techniques for small turbines, with the objective of making their implementation easier and more efficient regarding construction, integration to the site, cost, performances, operation and maintenance. Such developments can be ideal for small and medium enterprise, and are designed to cut down future possible hydro-mechanical problems, based on systemisation using laboratory tests and computer-aided design (CAD) tools
Large steps in small hydro
21 July, 2006
The 18th Hidroenergia conference took place in Crieff, Scotland, UK, on 8-9 June. The biennial European event continued its trend for interesting and diverse papers and presentations on the topic of small hydro power, writes Jon Last