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Re: 5 blade vs 11 blade design

Fri, 09/30/2016 - 08:45
I'd understood that tower shadow could also be a contributor, the cyclic loading and unloading (or less loading) of the downward position blade.  I could imagine that it might be more of a factor with a sizable mono-tube tower, or perhaps an SSV (free-...

Re: what is the bottom line with hho?

Fri, 09/30/2016 - 07:55
Quote from: electrondady1 on Today at 07:00:30 AM
over the years people have tried and documented their automotive  hho generator experiments.
my understanding is, in combination with regular gasoline it improves mil...

Re: what is the bottom line with hho?

Fri, 09/30/2016 - 07:00
i have 4 small windmills with a total swept area of 33 sq. ft .
rectified to DC the outputs are combined and hooked to an electrolytic cell.
it's a nice load for the  mills
the hydrogen gas it produces is vented right now .
 but it is definitely fla...

Re: Control for heating with solar off grid no batteries

Fri, 09/30/2016 - 06:21
I changed the code that you mentioned to = 250 instead of = 255.  What else needs to be added to the code for the second pot to adjust set point ?  Where should I have entered  panelrndup   in the code ?

There has been very little sun here for several...

Re: 5 blade vs 11 blade design

Fri, 09/30/2016 - 01:56
The vibration of a 2-bladed rotor isn't caused by the difference in moment of inertia between the horizontal and vertical position of the blades. If the yawing angular velocity is constant, there is no moment required for acceleration around the tower ...

Re: Using a ASC712 current sensor with UNO

Thu, 09/29/2016 - 23:49
Yes, I was wondering how this small ACS712 circuit board can handle 30A current.
Probably only a few seconds.

Re: what is the bottom line with hho?

Thu, 09/29/2016 - 22:33
Made a few of those over the years..did one with aluminum plates..hit it with 12v. 10 amps  at the start..pulled the wires off ..and it sat their for hours makin HHo..all on its own..makin about 2.5 v out put as well..not as much out put to keep a a sm...

Re: what is the bottom line with hho?

Thu, 09/29/2016 - 21:50

The bottom line is it takes more energy to make the gas than what you get out of it.  End of short story.

Long story:

"Free" energy exists.  It's called Solar, wind, Biogas and Hydro. ANYTHING else is bunk.

I got inquisitive on this about 15 years a...

Re: what is the bottom line with hho?

Thu, 09/29/2016 - 19:09
We are a practical bunch. If it worked and made economic sense to do it, we would.

North Korea cooks waste vegetation to make flammable gas to run vehicles because they have to. The Nazis cooked coal to make fuel and other things because they had to.

I...

Re: F&P blade hubs

Thu, 09/29/2016 - 18:05
Nice but to expensive! I haven't decided on blades yet. If I am going to carve a set or find some online to order...

what is the bottom line with hho?

Thu, 09/29/2016 - 13:03
i recently got a book about fuel cells and started looking at youtube videos. are people really running a lawnmower engine with hho? what is the bottom line with power in and gas out? i understand there isn't "free" energy and would like to hear your o...

Re: Control for heating with solar off grid no batteries

Thu, 09/29/2016 - 13:01
Did another quick look.

// is count too high and makes narrow pulse?
  if (PWM3 >= 255) PWM3 = 255;  // FULLY ON

should be:
// is count too high and makes narrow pulse?
  if (PWM3 >= 250) PWM3 = 255;  // FULLY ON


You started adding code for a second po...

Re: 5kw Poncelet Wheel Project

Thu, 09/29/2016 - 12:07
Out of curiosity, what will the hydraulic pump be used for?

Re: Control for heating with solar off grid no batteries

Thu, 09/29/2016 - 06:30
The data is now printing out on the serial screen.  I made the changes you mentioned. The
 detailed information you gave made it easier for me to follow.  I'm going to go back over the posts to try and understand and check that I have not missed things...

Re: F&P blade hubs

Wed, 09/28/2016 - 21:23
Quote from: Mary B on September 04, 2016, 04:49:56 PMIs anyone making blade hubs for the F&P motors? I am thinking of a bracketed tower off one end of the shop where I get pretty decent wind and picked up an F&P motor and wind ...

Re: Control for heating with solar off grid no batteries

Wed, 09/28/2016 - 14:57
  When I changed the code  the debug screen is now giving data.  Was great to see that
happen. I will go ahead and make the changes you mentioned.
   Thanks





Re: 5 blade vs 11 blade design

Wed, 09/28/2016 - 13:15

Re: Control for heating with solar off grid no batteries

Wed, 09/28/2016 - 08:20
I see that something was lost in translation.  it should read:

 //  READ ANALOG VALUE AT PIN A0
  rawdata = analogRead(0);
  // A/D values go from 0 to 1023

In the beginning we were just reading the A/D value and using a single reading to represent pan...

Re: Control for heating with solar off grid no batteries

Wed, 09/28/2016 - 04:56
 Changed the code back to analog Read, put  (panel * 32); back,  now the serial screen is printing out the number value's like it had been.  I am thinking that
there was not enough added to code or maybe I didn't delete enough for it to print ?
Here is...

Re: Day one. New project: Helical VAWT

Tue, 09/27/2016 - 15:33
Hi

The discussion on your shaft goes on. Look at automotive prop shafts, you have a large diameter tube with bearings on small diameter sections. Car or truck prop shafts all use this method and the long shafts are broken with a center bearing with an ...