Hi Martin, Carlos again. Sorry, a second reading of your answer and your first question to the group put the ' water cleanest ' for me.Yes, with 3 m over de pipe entrance, debris and trash can float away and proposed 2 x 2 m trashrack can be good. Regards,
Carlos ----- Original Message ----- From: millstreamhydro To: [EMAIL PROTECTED] Sent: Monday, September 27, 2004 8:07 AM Subject: [microhydro] trash rack I have posted a sketch of a trash rack in the files section (trash rack.doc)for a turbine we are installing. The rack itself will be 2m x 2m made from the stuff they use for industrial 'cat walks'. Essentially this consists of several 25mm x 5mm bars spaced 25mm apart with distance ferrules at 125 mm. The turbine is an old Gilkes series 'c' 18". one part of the runner has 35 mm gaps and these taper off but I assume 25mm trash and leaves will pass. It is designed for open flume operation but it suited my site to pipe the water (1.5 m3/s) to it via 1m diameter pipe. The chamber is therefore covered. The rack will be mounted on two H beams 11m long and driven into the mud floor of the lake (which has a water volume of 55,000 m3. Water level above the pipe inlet center (and trash rack) will vary from 0 to 4m. The rack will be hauled up tipped over and returned using a geared winder with 8mm rope (capable of pulling one tonne). Any comments? Regards, Martin 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 Sponsor ADVERTISEMENT ------------------------------------------------------------------------------ Yahoo! Groups Links a.. To visit your group on the web, go to: http://groups.yahoo.com/group/microhydro/ b.. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. [Non-text portions of this message have been removed] ------------------------ Yahoo! Groups Sponsor --------------------~--> Make a clean sweep of pop-up ads. Yahoo! Companion Toolbar. Now with Pop-Up Blocker. Get it for free! http://us.click.yahoo.com/L5YrjA/eSIIAA/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/
