Thanks KTM, I've been thinking that also. The unstable feature of the columns and the amount I would have to build is a bit off putting. The stability and UV issues would certainly be eliminated. Thanks for watching and thanks. Cheers !
If you place a tennis ball in the dam that feeds your pipe it will prevent a whirlpool from forming prevent air from being sucked in. Hope that helps, good luck.
Hey Jumper, you're spot on! I was am going to install 2 x stand pipes. I'll add to T junctions to the 90mm pipe and then reduce them to 50mm. My thought is to install the stand pipes at every 1/3's section of pipe. The first above the water intake and then the second above the first stand. Do you think would be suitable, or is just one stand pipe sufficient? Let me know your thoughts. I'd appreciated the feedback. Cheers
@@FatCowFarmTatong I may be late in replying, but just one a few meters down the pipe from the top should be sufficient. Remember the stand pipe must extend higher than the water in the dam, so half way down would mean a 5 meter pipe!
I suggest that you see a couple of guys' micro hydro sites on UA-cam who have set up their own micro hydro systems from the word go, just as you're doing. I'm an engineer and an avid follower of micro hydro systems worldwide from my place in Perth WA. I've followed everyone worldwide and I regard these two guys as world leaders in ultimately producing the worlds best systems,,, each starting from tiny streams much smaller than yours, each producing a bit over 500 watts at 240v ac. "Kris Harbour" in Wales UK has produced a very well built system, doing things the hard way, ultimately coming up with a top class micro hydro system feeding storage batteries. The second guy is "Mr Hydrohead" in Colorado US who has produced what I class as the crem de la crem of micro hydro systems, sparing no expense in getting his system up and running from two tiny mountain streams. Give yourself plenty of time to view these two systems as they take many videos from start to finish. I think that after following these two guys you will save yourself a bundle by not making their mistakes. I wish you good luck.
I know you have already laid the pipe, so I am too late....But for future proofing and to minimize internal pipe friction (losses) you need to run the biggest pipe diameter possible/affordable. Also farm effluent pipe comes in 50m rolls and take much higher pressure, requires less joints and is stock and goat proof, it is available in 90mm here in NZ. I believe in Auzy you can get it in 100mm diameter.
I think you would be better off with a turgo turbine. Better for mid range pressure and higher flow. Power spout have a great online calculator that may help you
Great project so far. After researching micro hydro for years for my project I HIGHLY recommend burying your penstock
Thanks KTM, I've been thinking that also. The unstable feature of the columns and the amount I would have to build is a bit off putting. The stability and UV issues would certainly be eliminated. Thanks for watching and thanks. Cheers !
If you have eddy/vortex problems try putting a tennis ball in the dam near the vortex. The ball tends to seek out vortexes and kills them.
Hey Richysee, nice one. I'll try this straight away. Thanks for the heaps up. Cheers!
If you place a tennis ball in the dam that feeds your pipe it will prevent a whirlpool from forming prevent air from being sucked in. Hope that helps, good luck.
Hey Skeller - thanks i'm trying a different method with a shute system. Thanks for watching and take care. cheers
May I suggest adding a stand pipe, that should resolve a lot of your air intake issues.
Hey Jumper, you're spot on! I was am going to install 2 x stand pipes. I'll add to T junctions to the 90mm pipe and then reduce them to 50mm. My thought is to install the stand pipes at every 1/3's section of pipe. The first above the water intake and then the second above the first stand. Do you think would be suitable, or is just one stand pipe sufficient? Let me know your thoughts. I'd appreciated the feedback. Cheers
@@FatCowFarmTatong I may be late in replying, but just one a few meters down the pipe from the top should be sufficient.
Remember the stand pipe must extend higher than the water in the dam, so half way down would mean a 5 meter pipe!
I suggest that you see a couple of guys' micro hydro sites on UA-cam who have set up their own micro hydro systems from the word go, just as you're doing. I'm an engineer and an avid follower of micro hydro systems worldwide from my place in Perth WA. I've followed everyone worldwide and I regard these two guys as world leaders in ultimately producing the worlds best systems,,, each starting from tiny streams much smaller than yours, each producing a bit over 500 watts at 240v ac. "Kris Harbour" in Wales UK has produced a very well built system, doing things the hard way, ultimately coming up with a top class micro hydro system feeding storage batteries. The second guy is "Mr Hydrohead" in Colorado US who has produced what I class as the crem de la crem of micro hydro systems, sparing no expense in getting his system up and running from two tiny mountain streams. Give yourself plenty of time to view these two systems as they take many videos from start to finish. I think that after following these two guys you will save yourself a bundle by not making their mistakes. I wish you good luck.
Hi Richysee, thanks again. I'll take some notes. Cheers
@@FatCowFarmTatong I sure hope you can make something out of all of that. :-)
I know you have already laid the pipe, so I am too late....But for future proofing and to minimize internal pipe friction (losses) you need to run the biggest pipe diameter possible/affordable. Also farm effluent pipe comes in 50m rolls and take much higher pressure, requires less joints and is stock and goat proof, it is available in 90mm here in NZ. I believe in Auzy you can get it in 100mm diameter.
I think you would be better off with a turgo turbine. Better for mid range pressure and higher flow. Power spout have a great online calculator that may help you
Hey Hayden, I'll look into it further, just waiting for this rain and floods to drop off and i'm back into it. Cheers