Hi Michael, Max and all: Well friends, time and more thinking would be the future for plastic buckets. In a 8 kW, 200 m head vertical Pico Pelton direct drive...
Has anyone responded to your question? Squirrel fans do seem like a cheap way to set up a small system... Could you please keep me informed? Chris ... From:...
By way of example, we recently supplied a turbine on a site with a 135m of head, flow 0.5-1 L/s. The turbine the clients been using for the last 2 years had...
I am looking for SPECIFIC design information for ram pumps. All of my internet searches turn up general information or designs for particular ram pumps, but...
With regard to water turbine runners, it is not necessary to go to 'one piece' lost wax castings, although this is a nice solution for small complex shapes. I...
Evans Engineering
re@...
Nov 2, 2004 6:51 am
5237
Hi Is it possible to measure the energy/power available from a free- flowing water stream ? The flow-rate is given in m3/s. Thanks. J. Khan...
Hi Michael, a "large", low RPM rotor at such high head and low flow? what is the % efficiency penality you get from that choice? I agree from my own experience...
Max Klohn
amk@...
Nov 2, 2004 6:56 am
5239
Hello, If you are looking at a ram pump (my family were building them from about 1860) it's going to be a very large lump of kit 6" or larger drive pipe, so I...
Evans Engineering
re@...
Nov 2, 2004 6:58 am
5240
The future of Plastic Buckets depends on the head and the debris content in the water, especially sand like material. The head and nozzle diameter enter in the...
Nando
nando37@...
Nov 2, 2004 6:58 am
5241
Hey folks, about that 12x5 wheel, the contractor (Bob) did not have the willpower to cut it up. So he had a crane move it out of the way. This gives us two to...
We have been selling an epoxy resin wheel with special additives for over a decade with excellent results- in fact I have never seen one worn out from...
Hi, This is Brian Yanity, a graduate student in the fluid mechanics lab at the University of Alaska-Anchorage. As part of our investigations of using Alaska's...
bby2001@...
Nov 2, 2004 12:36 pm
5244
Hi, To answer your questions. Below is data relayed to me by the client, I'm not convinced about the accuracy of the data but here it is. Original unit was...
Most waterpower systems require that you concentrate most of the practical head (fall) between the entry (high) point and the exit back to the stream (low...
I have a unique piece of land that has a 100 year old cistern on top of a waterfall. At some point I will re-establish the pipe and use the ~50' of head for...
Forrest Robinson
Forrest_Robinson@...
Nov 3, 2004 5:05 pm
5247
... looks quite good (way too good?) performance for a car alternator. why did he use so small nozzles? it seems he has at least 1 l/s available in his stream ...
Max Klohn
amk@...
Nov 3, 2004 5:05 pm
5248
Max: One can make, on the fly, a Turgo or Pelton with a defined PCD when you have Buckets that can be bolted to a circular plate, the PCD changes are based on ...
Nando
nando37@...
Nov 4, 2004 6:58 am
5249
The good news about hydro is that you do not need a large battery bank like wind and PV systems. We install for most of our clients a battery bank of 8 x...
Sorry my fault, what I meant to say it that we try to achieve a running speed of about 1000 rpm in most situations, in the example I illustrated the rpm is...
Hello Rupert, Max and all: Many thanks for your hints. My knowledge about 'Peltric' sets start at the 'First MHPG Hydropower Training Course' in Churwalden and...
Hi Forrest & Group, Careful with blowing pressurized air into water if there are fish. You could wind up with the same problem they have in large rivers (like...
In that same line of thought a refrigerator can consume large amounts of energy if those 'Dust Bunnies' are not cleaned out regularly. In preparing my home for...
Hi Chris: As an industrial centrifugal, radial & backward curved blade impellers, 'Sirocco' ones and cross flow turbine builder, I can tell you that squirrel...
Robert, There may be other people in the group who can answer your question with more practical examples. However, according to your last assumptions i.e. no...
Carlos - thank you for the information... I have a small Do-it-yourself system using a squirrel cage fan. 27 feet head. 4 inch penstock 430 feet long. Works...
Greetings, Jahangir Kinetic energy conversion is practical to do only less efficient. The structures required to produce the energy are larger and the forces...
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