Max: You can see any fluid enginnering handbok for tables about pressure loss coefficients. I think that your bifurcation may have between 0.5 - 1.0 velocity head (v2/2g) loss. 'Industrial Ventilation' from American Industrial Higienists can be one. It's the same for air or water for coeffcicient selection.
Regards, Carlos ----- Original Message ----- From: Max Enfield To: [EMAIL PROTECTED] Sent: Tuesday, September 28, 2004 11:54 PM Subject: Re: [microhydro] penstock bifurcation in hydropower plant s simamkele wrote: > > Can any one help me on the theoretical derivation of the loss > coefficient in the piping bifurcations as i need it for optimisation > of this power plant yet i cannot assume it as a constant, unlike the > inlet losses,sudden contraction and expansion and the geometry of an > unsymmetric also comes into play. > If there are any manuals,books,internet site,software analysis or > pipe designers kindly inform me. SF Pressure Drop 5.0 [available at http://www.pressure-drop.com/] makes it easy to do any pipe friction/pressure drop calculation imaginable. This includes a selection of eight different bifurcation options, covering inflowing and outflowing bifurcations; both equal and unequal division of flow. It also caters for adjustable angles between the legs of the "Y" or "T" fitting. This program will calculate the loss for any input values of flow and pipe diameters. A brief theoretical discussion is given, however for branches (bifurcations) the user is referred to two texts, both in German. Regards, Max Enfield Planetary Power 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 --------------------~--> $9.95 domain names from Yahoo!. Register anything. http://us.click.yahoo.com/J8kdrA/y20IAA/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/
