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Re: Prototype Oil Drum wind turbine

Discussion Board - 49 min 29 sec ago

Not sure what you see the problem being with a vertically double stacked  turbine.
Put a piece of support going across the middle between the 2 rotors and put a bearing top and bottom of each so each rotor has a bearing top and bottom on a common sha...

Re: Getting started with UNO

Discussion Board - Sat, 12/03/2016 - 18:06
Quote from: DamonHD on November 29, 2016, 01:32:12 PM another way you could put off taking critical measurements until the supply is stable.  I can share the code if that helps.

Damon

Many hands make light work. Peopl...

Re: Prototype Oil Drum wind turbine

Discussion Board - Sat, 12/03/2016 - 16:50
Yeah I have just done a test one, I have some smaller wire that I recycled from washing machines but it's not straight etc , would be interesting to see the results with 2 strands of thinner wire.if you add more buckets vertically then you have to make...

Re: Getting started with UNO

Discussion Board - Sat, 12/03/2016 - 15:16
Operahouse;
I don't want you to go getting all teary eyed, blushing or aww-shucks on me. 
BUT I have to say this:
This is the very type of professors (mentors) I always went looking for and in the world of GIS training I'm still looking for. ...

Re: Operate two fridges, one at a time

Discussion Board - Sat, 12/03/2016 - 11:34
                    TEST PROCEDURE

To test this software two 100W lamps are needed to simulate the load. A
100W lamp represents about .8 amps. Start out with both lamps unscrewed.
With the micro plugged into the laptop USB, go into TOOLS in the Arduin...

Re: Operate two fridges, one at a time

Discussion Board - Sat, 12/03/2016 - 08:33
The trouble with timers is the time they are switched to a non operating device is time that power is not available to another load.

You have hit upon the problem with most solar systems.  Once the battery goes to float, all that excess energy is waste...

Re: Getting started with UNO

Discussion Board - Sat, 12/03/2016 - 08:12
                                  A FEW RAMBLINGS

I'll be repeating some of the same things over and over again in posts.  Hopefully
it will begin to make sense after a while.

DamonHD a few posts back mentioned that there was another way to detect if t...

Re: 15' footer upright and...well upright

Discussion Board - Sat, 12/03/2016 - 07:22
Great Photos!

It show that making power with the wind is not a "passive" method.  It is certainly rewarding learning and applying skills to see those watts come down the tower.

Based on your weather description, are in the Northeast?

Boondocker.

Re: Prototype Oil Drum wind turbine

Discussion Board - Sat, 12/03/2016 - 06:46
if you increase the dia. you will increase the torque but reduce the rpm .
better to add more buckets vertically.
that will keep the rpm up but double your torque.
 
you should build a test coil to see how may turns required at the rpm your machine wil...

Re: Operate two fridges, one at a time

Discussion Board - Sat, 12/03/2016 - 05:18
You guys make this very interesting and educational to read.  All the different ideas and
approaches without reinventing.  It can change the way to achieve.

Re: Operate two fridges, one at a time

Discussion Board - Sat, 12/03/2016 - 03:40

NFI what a block heater timer is but they don't sell them here.

I did find a couple of interesting timers though once the penny dropped what to look for.
Came up with this:
http://www.ebay.com.au/itm/New-Digital-2Channel-Programmable-Relay-PLC-Boar...

Re: Operate two fridges, one at a time

Discussion Board - Sat, 12/03/2016 - 00:51
I had a long post and I lost it.  Almost 2am, too late to start over.  This is what I just purchased.  I always match up pictures.  Some of the descriptions on the Chinese listings really make you wonder.  These are the only things I buy now.  Same pin...

Re: Operate two fridges, one at a time

Discussion Board - Fri, 12/02/2016 - 22:39
OH,
As usual your code is beautiful.
I didn't know that you couldn't nest math into the abs() function.  I wonder if that's caused some of my sketches to bail in the past...

Re: Operate two fridges, one at a time

Discussion Board - Fri, 12/02/2016 - 22:20
Forgive me for throwing a bomb into your ideas, but I have a KISS solution to this one already working.

Use two programmable block heater timers (each 25$ at a hardware store).  Program one to run at times that the other is programmed not to run, and v...

Re: Prototype Oil Drum wind turbine

Discussion Board - Fri, 12/02/2016 - 18:44
I have scribbled down some designs for how I would use two drums, the wind has been stagnant here lately when it gets going it smashes it round here, there are lots of poss ways even have thought of putting two up on a tower but I would probably go for...

Re: Getting started with UNO

Discussion Board - Fri, 12/02/2016 - 18:12

This is what I bought:

http://www.ebay.com.au/itm/262685816849?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

I see now it doesn't actually say Nano so maybe I have blown 5 bucks!  going to be paying for that mistake for the rest of my day...

Re: Operate two fridges, one at a time

Discussion Board - Fri, 12/02/2016 - 17:48

Fantastic!
Thanks very much for this. I was looking on fleabay last night for something that would perform this function but I don't think I could even put in the right name of what I was looking for even if it does exist.

Just one thing,  for the id...

Re: Prototype Oil Drum wind turbine

Discussion Board - Fri, 12/02/2016 - 17:15

I like this style, Nice and simple and practical.
I was wondering, If you took another rotor just like you have and stacked it on top at 90o so you had effectively 4 blades, would this make the unit more powerful or are there some other forces at wor...

Re: Prototype Oil Drum wind turbine

Discussion Board - Fri, 12/02/2016 - 16:36
The rotors are the hugh Piggott style 12 mags , 50*25*10mm,the coils are 14 awg 70 turns ( or will be when I have made them ) , I have 1kg of wire here and 4 more kg on order hoping that will be enough , I made a wind turbine years ago but the wind her...

Operate two fridges, one at a time

Discussion Board - Fri, 12/02/2016 - 13:29
The following program was inspired by george65 who said he had a need to
operate two refrigerators, one at a time. Scheduling loads is one way
to reduce the need to go to larger inverters and more batteries. This
could be applied to many other applic...
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