G'day, Your understanding of the electrics is just about right but there are a few basic steps that determine the design of a hydro system, long before you get...
Academicians in the fields of micro , mini power dams and renewable energy who would like to do some work or teaching in Uganda East Africa you are invited by...
Hello, I've done some preliminary calculations of the Major Losses in my penstock but I'm a little unsure of the results (seem big). Anyone willing to review...
Dear Nando I've been on this forum for a few months and would just like to say a very big thank you for all the valuable information and help that you yourself...
Richard: Many thanks for your kind words and keep me informed about your projects, as early as possible, to see how we can assist you and your community...
Nando
nando37@...
May 7, 2009 5:31 am
11132
... Note: I've just posted the word document of the calculations in the Files section of the group under the name "Calculas de Pérdidas - La Laguna." The...
Dave, I will be happy to review the calculations for you. The information required is, penstock length, diameter, material, shape of intake fittings (bends,...
Hi Dave, ... Why don't you simply check them with one or more of the online pressure drop calculation tools? That's easy, fast and free! If your results agree...
hi guys, newbie here... just like paul, i really have no idea of micro hydropower system/set-up although i understand the basic step or system needed to have...
In his posting of Wed, 6 May 2009, Nando writes ... Dear Nando Thanks. Nothing much I can say at present except that our main potential source of power...
Nelson: 100 M^3/s = 27.78 liter/sec and 5 meter head may produce ; Watts = 27.78 * 5 * 9.81 = 1362 watts then if we use an overall efficiency of 61 % the power...
Nando
nando37@...
May 8, 2009 5:33 am
11138
Hi. Im planning to build a number of micro-hydro, high head powerstations looking only at sites that will produce between 200-350 Kw. i have experience working...
Suggest you familarize yourself with various grades of PE piping by going to http://www.engineeringtoolbox.com/pe-pressure-grades-d_668.html and learn how to...
Pocket: Great interest in knowing where these sites exist. and the water volume seasonal variations Pelton Wheels may require extra metal weight, bearing and a...
Nando
nando37@...
May 10, 2009 9:29 pm
11142
dear all we have called for tenders to purchase hydro electric units with capacities ranging form 200 kw to 3000 kw. we have asked the participants for...
Hi Shabab, I'd be quite pleased to do some economic/social analysis of your projects if you would be interested. If so contact me direct. I operate a company...
Dear Shabab, The tenders should specify the minimum requirements for the hydro electro-mechanical equipment such as the kind of steel/thickness, period it...
Sadly, it is true. Meanwhile the California Sea Lions are gorging on Salmon at Bonneville dam with little interference (a few have been trappped) while many...
G'day, I think we should have a bit of a discussion about this. I, like you, am a passionate enthusiast for hydro systems. Well designed hydro systems can...
I like the floating systems because they do not have much impact on the environment. What you say about making them pretty for the anal members of society...
Re:> Tell me what you reckon. ... I reckon that rivers could be covered with similar floating paddle-wheel power generation devices. For aesthetics and safety...
Dear sirs, May we discus smth., a technical thing, perhaps economical: diameter of a penstock. If we select a big one, it is beter, the looses are little...
It was only by accident that my water wheel powered rafts gained local acceptance, I offered to build homestead rafts for homeless veterans. The local...
Archimedes screws are being used for this purpose.somewhere I have the name of a company which specializes in making them for Sewerage treatment plants to...
These are 'common' in Alaska, British Columbia and Bosnia. There is a new importer(floating water wheel is made in China) in Amsterdam, NY. BUT they aren't...
EDUARD: Where are you located ?. Penstock diameter IS ALWAYS defined to have the least pipe volumetric material within the head and the water volume...
Nando
nando37@...
May 15, 2009 10:36 pm
11156
hello friends, just wondering if there is a simple equation available to calculate the penstock diameter with the figures for head, flow and pipe-run length?...
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