Manfred Mornhinweg wrote: > > Dear all! > > Last weekend I spent a number of hours working through Dr. Donat Banki's > original paper on the crossflow turbine, and reducing it all to a simple > program. This program designs the turbine and penstock, starting from > gross head and flow, allowing the user to select RPM (within reasonable > limits), and producing the basic dimensions of the turbine.
After years of manually doing the design calculations for our Banki-crossflow sites I developed my own software and have found it very useful especially in evaluating alternative possible configurations. It has been provided to a number of people (mostly university students) and each time I have endeavoured to make it a little more user friendly and it now comes as an Excel workbook, comprising a number of interconnected worksheets and with a detailed user manual. It employs a "power train" approach, where each step in the transformation of power from hydraulic input to electrical output is described and analysed. The performance of any design can be rapidly evaluated over a range of head and flows. It is intended as an aid to finding the optimum design for a single turbine that is required to operate well over a possibly wide range of head and flows - being a typical requirement for a crossflow site. Whilst intended for Banki-crossflow turbines powering DC battery charging systems, it can be easily adapted to other types of turbine and charging regimes. The Excel workbook is at: http://www.planetarypower.com.au/info/microhydro/WalshHydro.xls and the design manual is at http://www.planetarypower.com.au/info/microhydro/crossflow_design.pdf I hope those who are interested in Manfred's software will find this a useful complement. Any feedback will be most welcome. Regards, Max Enfield Planetary Power ------------------------ Yahoo! Groups Sponsor --------------------~--> Get fast access to your favorite Yahoo! Groups. Make Yahoo! your home page http://us.click.yahoo.com/dpRU5A/wUILAA/yQLSAA/FGYolB/TM --------------------------------------------------------------------~-> Does your company feature in the microhydro business directory at http://microhydropower.net/directory ? If not, please register free of charge and be exposed to the microhydro community world wide! NOTE: The advertisements in this email are added by Yahoogroups who provides us with free email group services. The microhydro-group does not endorse products or support the advertisements in any way. More information on micro hydropower at http://microhydropower.net To unsubscribe: send empty message to [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/microhydro/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
