hii, I'm working on sensor faucet, which uses 4 AA alkaline battery to power the IR sensor and solenoid valve in it...the flow rate of the faucet is not more than 2L/Min in 3 bar, now my aim is to eliminate that battery and apply a hydropower turbine in it which generate electricity and store in reachrgeable battery which power the faucet component..for this i need to order components can you help me in ordering right components for my project...also i need turbine threading 1/2 inch i.e. G1/2..if you want further specification i'll provide voltage requirement for both is 6V dc, and current for IR is more than or equal to 50 mA and for solenoid is between 300mA to 600mA approx values not confirmed and exact as per study i come to know the faucet works on 6V power as it uses 4 AA alkaline duracell battery so we can take that point in consideration the kumin sensor faucet I'm going to work with having technical specification of flow rate not more than 2l/min at 3 bar so we can take this point which is best for my project to store energy and power the faucet for long life run...for now i'm going to test the technology in my faucet so which is best and easily available in gurgaon india . i'll go with that

 

That "hydroturbine" will probably be a turbine flowmeter with a magnetic pickup. BUT it will not deliver enough power to charge the battery. I have never come across an actual water turbine generator, only flow-meter devices. A mains power supply is the way to go.
There is also a mains operated six volt supply available for that same faucet. I know, I did the plumbing of one for my sister 4 years ago.

 

This sounds like some kind of school project. Is it?

 

That water powered turbine generator is not a product that I have ever seen for sale in my part of the USA.
I installed one of those electric faucets for my sister several years ago. It came with a mains power converter in addition to batteries. I am guessing that this is for a residence with mains power, and using that connection will save a whole lot of money, well over $500.

 

A pitcher of water can be used for URGENT HAND WASHING.
The Kohler Kumin electronic bathroom faucet has an electric eye that detects your hands.

There is a plastic control box located under the sink and inside is a battery pak and 2 pin connector
After replacing the batteries and need further assistance locate the specific model number and call the plummer.

An infra red photo proximity PIR module by itself is low cost but the cost of small water proof generator
would need commercial application in many hundreds of Watts. See small hydro generators and the permit process.

 

This sounds like some kind of school project. Is it?

yes

 

but

That "hydroturbine" will probably be a turbine flowmeter with a magnetic pickup. BUT it will not deliver enough power to charge the battery. I have never come across an actual water turbine generator, only flow-meter devices. A mains power supply is the way to go.
There is also a mains operated six volt supply available for that same faucet. I know, I did the plumbing of one for my sister 4 years ago.

i can't use any external power source for powering , i need to use some self generating technology

 

o

A pitcher of water can be used for URGENT HAND WASHING.
The Kohler Kumin electronic bathroom faucet has an electric eye that detects your hands.

There is a plastic control box located under the sink and inside is a battery pak and 2 pin connector
After replacing the batteries and need further assistance locate the specific model number and call the plummer.

An infra red photo proximity PIR module by itself is low cost but the cost of small water proof generator
would need commercial application in many hundreds of Watts. See small hydro generators and the permit process.

oohh okayeee

 

but

i can't use any external power source for powering , i need to use some self generating technology

So you need to determine how much energy you need and how much energy can potentially be obtained and stored from your generator. You will likely be disappointed, but the process of exploring and experimenting to determine the answers will be valuable, even if it turns out to be impractical.

 

Does the solenoid valve draw power as long as it is open? If so, there is no way the flow of water at 2 l per minute going to even power the solenoid.

 

That water powered turbine generator is not a product that I have ever seen for sale in my part of the USA.

Really? Self-powered LED shower heads and faucet adapters have been around for years. Here's an example from Amazon.





But literally a 10 second Google search for "G1/2 water turbine" will find all kinds of examples like this one from Amazon which claims an output of 220mA at 5 volts. Or they are available with a 12v output. Ten bucks at Amazon.





I can't post the video from the Amazon page, but here's a screen shot of this turbine powering an LED puck light. Yes, these turbines are real, working products.

 

I more I learn, the more I know I don't know. But unless something violates the 2nd law of thermodynamics, I am reluctant to say something is impossible or doesn't exist without at least a token search.

 

I am guessing that the reason for not being able to use external power is that the faucet is intended for a structure with no internal electrical wiring. And as for that LED shower head, one color changing LED requiring about 4 volts max at about 15 milliamps. does noot need much generator capacity.

 

And as for that LED shower head, one color changing LED requiring about 4 volts max at about 15 milliamps. does noot need much generator capacity.

But literally a 10 second Google search for "G1/2 water turbine" will find all kinds of examples like this one from Amazon which claims an output of 220mA at 5 volts. Or they are available with a 12v output. Ten bucks at Amazon.

I guess MrBill stopped reading before seeing the turbine generator rated output is 220mA at 5 volts.

 

There is often a large difference between claimed performance and actual performance. and under just what conditions is that performance delivered??? I see the picture and I see the graph, and it looks like a lot more flow than would come thru a typical sink faucet. AND, it does not look at all like the type of connections the TS is asking for. And NO I did not read the wonderful claims.
I never claimed infallibility, BTW.