Wayne: Your are looking to have continuous and stable power . First you need to determine the water volume ( minimum and maximum) and the head ( height...
Nando
nando37@...
Jul 1, 2007 1:22 pm
8496
Hi Wayne, In short no. You have to match the rpm of the turbine to that of the generator at the correct rpm and power output. Taking a propeller at random and...
Hi Wayne, First, hats off to you for the effort! It is great to see folks like those on this site taking the thought process to reality in their projects. I do...
Hi Wayne! ... A classical example for economy of scale! For every hydro generator sold, it's likely that several thousand gasoline powered gensets are sold! ...
I posted some time ago wondering if anyone had managed to capture vortex energy for small hydro and was advised that this was not something this group ( micro...
Hi all and thank you for your valuable advice. The stream I want to use has a summer flow of about 200 litres a second, (about a foot deep x 4 feet wide) and...
Hi all group. Antioquia's goverment from Colombia, are constructing a 50 kW micro hydro power plant for 100 users, operated grid isolated. If you know a...
I'm (partially) successful using a waterwheel with a SEW gear increaser to turn a 2 hp 3 phase motor as a generator. (motor specs here: ...
Don Jackson
homesteadpower@...
Jul 4, 2007 12:42 am
8503
Don Brighter minds than mine will probably chip in shortly, but this should get you started. The caps are truly there for excitation. Even at full output they...
Hi folks, This is a great demonstration of the difference between useful power and reactive power. In clamping the meter on the wire between cap. and motor...
ian benson
iandesignandbuild@...
Jul 5, 2007 7:24 am
8505
DON: Where are you located ?. Interesting what is happening to you !! Your information is in such disarray that is not possible to find the "head or the tail"...
Nando
nando37@...
Jul 5, 2007 7:25 am
8506
Is there a chance anyone can find these specific articles about dimensioning hydro turbines, francis, kaplan and pelton: Siervo, Lugaresi, Leva and Massa...
Hi I am assessing a small hydro project in South Africa with variable flow and about 250m head. In the summer its low at about 0.08m3/s but in winter it is ...
Hi Alastair, The 250 m head is a gross head suitable for a multi nozzle Pelton turbine, that can run at variable flow always with high efficiency. 80 l/s is...
Hi Alistair! I only check this mailing list occasionally, so it was a pleasant surprise to find your name there. Glad to hear you guys are still working on...
Dear Alistair You need to do hydrology analysis fist and get the flow duration curve for the specific stream. Based on that you can get the excedancy table ...
Rohitha Ananda
rohitha.ananda@...
Jul 6, 2007 6:40 am
8511
yes, you can set two or three units and depending on flow range one or another will start when it is capable of receiving such flow. head remains. wide variety...
Alastair: the plant needs to be sized for maximum flow ( bit higher for times where the water may be higher than 0,21M^3/s. the Only thing you need is to have...
Nando
nando37@...
Jul 6, 2007 12:47 pm
8513
For power plants the minimum number of units for reliability is 2. with your parameters your gross max power is 514.5 KW and minimum 196 KW. You should know...
Alastair, Nando, Yes. Another hint is design the control system for power generated by means of the a water level control at the forebay. Carlos ... From:...
... Carlos, Would you explain further the water level control at the forebay? Wouldn't one want to have the forebay at its maximum water level at all times? ...
Hi Chrish We can sell you the ELC board and you Put it in the enclosure with Meter Triac, Contactor , Breaker ,Switches ,Pilot lamp,Air cooled Ballast heater....
Chris, If each consumer had a dimmer switch to the lights and a voltage meter beside it, each household would be responsible for maintaining their own...
Everyone, We presently own and operate a 500kw hydro plant in southern Ulster County in NY. The project is a rural setting on 23 acres with a three bedroom ...
hterbush@...
Jul 9, 2007 11:35 pm
8521
Conrad: It is not "good" to have such idea implemented, it does not regulate the voltage properly. the proper way is to regulate at the source, all the source...
Nando
nando37@...
Jul 9, 2007 11:35 pm
8522
Hi Chris, have you seen the ELC designed and published by Jan Portegijs? It's called the "humming bird". You should find the whole package of information on...
Sir, say i have a little exp.i & my cousin (who does not know English.) has installed a unit (20kv).We suply 250*20 watt to a remote area at a distance of 5km...
FAZAL: You need to be very explicit and in detail, because we can not follow you well. Unit is 20 kv or 20 KW ?. what is 250*20 ?? are you saying that you have...
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