Chasing the watts DIY micro hydro Off Grid Day 36
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- čas přidán 9. 06. 2024
- In part two we work on fixing some issues with our off grid micro hydro turbine. We replace the fittings at the turbine to cope with the pressure that the water is at bursting the current fitting. We reroute one of the pipes to get a better run as well as working on the intake dam. We also look at some of the vent pipes further up the line.
Turbine-www.ebay.co.uk/itm/204150087055
Nozzles-www.ebay.co.uk/itm/203268369118
AC/DC rectifier-www.ebay.co.uk/itm/386262523602
Pipe-plantexuk.com/collections/mdp...
Waterproofing-www.screwfix.com/p/mapei-aqua...
Bottle valve-www.screwfix.com/p/bottle-air...
15mm tank connector-www.screwfix.com/p/hep2o-plas...
Website-www.offgridscotland.co.uk/
Facebook- / offgridscotland
Instagram- / offgridscotland123
00:00 Intro
01:05 The dam
03:10 PSI fittings
04:36 Sealing the turbine
06:21 Pipe fittings
07:23 DIY air valve
10:20 Air vents
11:37 Turning it on
12:09 Outro - Jak na to + styl
I'm Eagerly watching this as I'm about to embark on my micro hydro early next year. I love your approach. I also hate it. For 8 years. I've been trecking up my hill every 2 weeks to sort out my water inlet and de clog it. I followed your underground bottle gulley water trap idea and now I've not had to go up there since October. It's a refreshing simplistic common sense approach. Keep up the good work. Superb videos. Thank you b
Wow I am really pleased it worked for you! I am a little surprised it is working here for me as I was sure it would clog but so far so good! Thanks for the kind words I hope the other videos on micro hydro are of use, the air in the lines are a nightmare!
Getting on with a bit of progress. Let’s hope for 100 psi on both and more watts produced. Looking forward to step three
Thanks Phil, I was a bit disappointed in the results but it feels like we are getting there.
Plumbers putty would probably be better. I like the snifter valve idea. A 55 gallon drum near the intake can help with air in the line and is a huge help with silt
Thanks, I am making a gasket at the moment as the sealer doesn't seem to want to stick to the plastic that the turbine housing is made of
@@offgridscotland If all else fails, try EPDM pond sealer. That stuff sticks to everything, and it cures even when it is wet and cold. I had good results with applying it to a variety of plastics. And it is safe for aquatic life, so it is not toxic. Thicker layers might take a day or two to cure under cold conditions. But that stuff is very strong and sticky.
Excellent, I just had a look and it looks like a really good solution. I will be adding a rubber weather strip to the bottom and if this doesn't sort it I will try the pond sealer as well@@insAneTunA
@@offgridscotland EPDM is a rubber that is used for pond and roof liners, but it is also used in the car industry. So the pond liner sealer is excellent stuff for gluing rubber gaskets. The EPDM pond or roof liner itself is very good material for making gaskets. EPDM rubber is super strong.
Excellent@@insAneTunA
If at first..... Love your approach Rob. Not working as it should? No moaning or whining. Assess the problem, modify and go again. I have every confidence you will crack it in thr near future. .
Thanks, I try not to whine as it only holds things up. I hope we will have it sorted in the next one!
Cracking pal good effort looks very damp up your way at the minute.
Thanks Neil, Yea its chucking it down at the moment
a 55 gallon drum cut down the middle will give you two or more crescent shaped plastic dams. people use it to make spring boxes.
Excellent thank you!
your welcome
Hello, I am in the south of France in the Lozere department. I also have a small hydroelectric turbine like yours, a Pelton with the same ME1112 generator, a discharge height of 62m, a pipe length of 150m with an external diameter of 50mm (44mm internal).
At most I should have around 3.5 liters per second. I can produce between 125W and 950W.
the blue variable injectors that you use are good if there is more than 1.5 liters/second, if there is less water I use fixed injectors with 4 or 6 or 8mm holes
the blue variable injectors are good if there is more than 1.5 liters per second, below the jet is very diffuse, when there is less water I use fixed injectors with holes of 4 or 6 or 8 mm
when the water flow is 3 liters per second I have a lot of losses because my pipe is too small (44mm inside). I have a loss of about 2 bars (30 psi)
if you operate both pipes at the same time the pressure must be identical, otherwise the speed of the water is not identical, and the lower flow rate is of no use.
I have a few vidéo in my youtube channet about my turbine (but, in French language)
I'm surprised I can understand you.. you don't have the terrible Scottish accent 🙂
Thats such valuable information! Thank you so much for you comment I will definitely look back at this when I am tuning it up
Are you able to link the adapter you added to the nozzle. I’ve had mine delivered from USA and getting ready to set it up. I’ve followed your videos and would love to replicate as your power output is amazing.
Sure here is the adapter I bought www.pipestock.com/mdpe-female-adaptor
product 352104 the 40mm to 1 1/2 one
or a different diameter input if you aren't using the same pipe as me
@@offgridscotland Mate. That’s perfect. I’m using the same pipe as you 40mm. I used the link in your video. 😁
good luck with it@@dawgsk9769
Could you not fill a pallet water container higher up with a vent on it. This would increase the pressure but also stop any air in lower pipes
That's a great suggestion and is exactly what I am looking to do when I get to upgrading it
did you need an abstraction licence?
We are working through this at the moment with the council