bruno motta

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since Apr 04, 2015
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consulenza  elettronica industriale  e     energie alternative

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lugano svizzera
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Recent posts by bruno motta

hello
for your doubts about the turbine, there are some cheap and programmable electronic circuits, which I use, and they are under/overvoltage with 10A relay output. program them slightly below the maximum voltage of the bms, and via its relay, drive an ac load from your inverter. the power will be sufficient to avoid over-revving the impeller. the load will be disconnected, when it reaches the UVP voltage. Furthermore, for greater safety, use another equal one, but which opens a solenoid valve on the pipeline, so as to discharge the incoming flow and still let the Pelton rotate
 best   greatig
udos46
1 year ago
Another site currently interesting and on y ..... e
Cristof48 and Pelton Energieeag
3 years ago
hello if you search with go ... video micropelton you find many DIY (even with my nickname))
I'm for the pico hidro with any height and reach (to start. and then we'll see?)
 the most important thing is the water intake at the source that does not cause turbulence and few clogging. do not save on the diameter of the duct, avoid corners and bottlenecks such as false slopes <which create an air bubble which reduces efficiency <
uses three-phase industrial brushless servomotors, which you can easily find at affordable prices
and a good MPPT solar regulator the biggest expense is not the turbine but the piping done well
3 years ago



Hello
I write you this email for info:
I am a retiree who has done so much for solar and water generators
https://www.youtube.com/watch?v=w16StyKLkvA&t=197s you can see a video of a brushless generator complete with elc for three-phase 230 volt 2.5 Kw at 600 rpm

if you are interested i am in switzerland (lugano)



ahttps://www.energeticambiente.it/idroelettrico/14776724-valutazione-impianto-mini-idro.html#post119953473


Design calculations for no-head, low-head waterwheels - Backwoods Home Magazine


best regards  

udos46
4 years ago
complimenti    per la  tua   intenzione di ripristinare      oggetti della storia passata,

la mia   opinione  , conoscendo  un po l e  energie  alternative, ( per grande  passione )    . sicuramente     2 Kw     li riesci a ottenere

io vedrei dei settori dentellati da incastrare (  inox  , tagliati a laser  )  , da poter  avvitare   sulla circonferenza    della ruota  , in modo  da  poter usare una catena   tipo moto   , pure inox
questo servitebbe   da moltiplica   per  essere collegata  a sua volta   alla puleggia dentata   del generatore    
supponiamo   che     la tua ruota     faccia    30  giri a vuoto , il suo punto   ottimale di lavoro si trova  tra il 60  e 80%
accettiamo che  la usi     a 20 giri al minuto   e il generatore     sia   un 600 giri    , quindi serve una moltiplicazione      1:30


corona dentata ruota  da 200 cm diametro    e   pignone  generatore   da 7 cm    diametro

ben felice  se posso esserti di aiuto   e   vediamo   se   c e  un parere    di altri lettori ,  in merito   al  tuo progetto

mi trovi  in diversi   post     se   cerchi  in mio nik

buona  fortuna

udos46


4 years ago
hello from my personal experience, I would see the following solution: use the circumference of the wheel, which under load will turn around half the number of laps
ideal would be laser-cut stainless steel sectors in order to have a large toothed gear for a motorcycle type chain (also stainless steel) in order to connect via a twin pulley of the correct diameter to have a 1:50 multiplication
the pin could be long up beyond the wall to be connected to the generator

at this point a 500/600 rpm three-phase brushless servomotor that can be easily found
then an ELC circuit will be needed to stabilize the output voltage in case of off grid
while if you put on the grid, an MPPT grid tie inverter solves easily by straightening and leveling the three phases in order to have from 300 to 700 volts dc
for your knowledge you can see on youtube here
[youtube]https://www.youtube.com/watch?v=w16StyKLkvA&t=190s
[/youtube][youtube]udos46[/youtube]
5 years ago
ciao    questa   puo essere una buona soluzione    da collegare   sulla circonfernza      della  tua ruota ; motore da overboard  500 watt
ne ho disponibili  alcuni pezzi    
sono brushless trifase     alta efficienza  
5 years ago
I'll put my link for info of a part of what I've done in picoHidro

everything you find and ..y, especially brushless servomotors at low prices

8 years ago