excellent richard! i am definitely in need of a local network. feel free to email directly at pulsechic@... thanks, marinda ... From: R. Hoffman To:...
m bowen
pulsechic@...
Nov 1, 2007 7:50 am
8755
Hi Fachri, As was said by other members, you must know the first flow and head available for the MHP plant, for select the turbine type, Cross flow, Pelton or...
Hi Agus... It is nice to know you. Have you installed any MPH system in Indonesia? Thanks and regards Fachri Hamdan ... wecan sharing it with you and can you...
Richard...........you'll need to post your email address so we can contact you........mark in NH ... From: R. Hoffman To: microhydro@yahoogroups.com Sent:...
I have a question for the group. I have a stream and have put in a 6" pipe with about 100' of head. The stream flows somewhere between 5gpm in summer to more ...
keith flaherty
keith_flaherty@...
Nov 2, 2007 6:54 am
8759
I have a micro hydro project that I'm starting to build. I need some help sizing the electircal conduit and the wire. I have a 6" pipe with about 100' of head....
Wire size is determined by the amperage you need to transmit and the voltage losses you are willing to accept. What is a 5K system? 5K means 5,000. If you are...
John Bertl
jbertl@...
Nov 2, 2007 5:08 pm
8761
Keith: You need to define the generated voltage and the power to be able to determine the wire for minimum wiring losses. 5 gpm = 0.315 liter/sec and 100 feet...
nando
nando37@...
Nov 2, 2007 5:08 pm
8762
Hi Keith, ... It seems to me that a 6" pipe is a little small for 5kW from a 100' head. But I will concentrate on your electrical question. Wire size is based...
I meant 5KW. I haven't figured out the voltage. I'm just approximating the wattage from the flow and head charts I've found online. My main issue right now is...
PLEASE CONTACT MR BATTERSBY DIRECT IF INTERESTED We have an unused new 40kW generator, because we upgraded from 40kW to 55kW when we raised our weir and as a...
Keith: The wire size depends on the power and voltage. You have not stated the generated voltage. If you want to experiment visit :...
nando
nando37@...
Nov 6, 2007 6:57 am
8767
Thanks Manfred; I guess I need to crack open my old electrical books. I appreciate the input. I think according to both you and Nando, I should consider up...
Hi, I'm interested in trying to build a Gorlov Helical Turbine for a river micro hydro setup (for my own home use). Does anyone have information on what it...
Hey Dave, I do not have any info on making a Gorlov Turbine, but I think it would be very difficult. If you go to my "Contact" page I have a bunch of "run of...
Don't do it Dave. The twisted blades make it more complicated without providing any increase in efficiency despite what his website says. I have straight...
Steve Gregory
sdgregory@...
Nov 6, 2007 4:53 pm
8772
I made an error in my division. 16/240 = 6.6 percent, not 4 percent While 6.6 % line loss might be acceptable in some cases, it is a waste that can be avoided...
Bob: You need to ask FIRST: Single or 3 phase 5000 watts power, then calculate on those basis. Nando ... From: bobmagi@... To: microhydro@yahoogroups.com ...
nando
nando37@...
Nov 6, 2007 4:56 pm
8775
Thanks Dennis for the suggestion. I'll check the Natural Currents link. I am also in New England, and yes, I have a 'problem' with speed (low speed flow, but...
Thanks Dennis for the suggestion. I'll check the Natural Currents link. I am also in New England, and yes, I have a 'problem' with speed (low speed flow, but...
My understanding is that the Darrieus puts out a bit more instantaneous power but it is a pulsating output whereas the Gorlov turbine output is smoother. I...
Hey Dave, Take a look at my video on the first page. The Spiral pump changes rotational motion into pressurized air and Fluid. I have designed an enclosed...
For making electricity, a person would be better off running the generator directly off the paddle wheel. Fewer conversions means fewer losses. I am curious,...
Hey Michael, Sorry for taking so long to write back on this one, very busy. The problem is one of speed and cost. Most cheap generators (like the ones I can...
Sir/Mam, i herewith enclosed the details of the National seminar on Application of GIS in civil Engineering, kindly find in the attachment with thanks ...
Dear sir, I am civil engineering graduate form Nepal.I have worked for two years in hydropower.I am doing my master degree and for my final project Problems...
My name is Kenny Hohman from upstate N.Y. My father Tom has successfully completed a hydro operation in our back yard running off of a waterfall. He has been...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
