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Plasma

Wed Sept 05 2018, 12:57AM

Registered Member #61406 Joined: Thu Jan 05 2017, 11:31PM
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Posts: 268

Being testing some ideas,magnetic and electric field with two metal pipes connected by a plastic pipe,
One thing I would like to test is two plates titanium and aliuium and short on and off between the plates with a electylight in a pipe between the plates wrapped in a coil.
I'm guessing the resistance will be large with the plates difference 0.80volt,
Will the coil make much of a magnetic field using salt water, metal inductors no.
If opening the short makes more voltage difference between the plates, how would you class the effecincy.

Sorry for my English

Plasma

Wed Sept 05 2018, 07:41PM

Registered Member #61406 Joined: Thu Jan 05 2017, 11:31PM
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Posts: 268

A voltage is made when the water runs,I'm thinking I need more turns and a bigger iron slug,
I'm using table salt will try with more ion per mole salts,
The volts were 0.03v

1536176490 61406 FT182869 Img 20180906 073723

Connected a 140kohm resistor and measure the voltage drop and got around 0.16v,poured some more salt in and it increased to 0.18v,
Have steel inside the inductor doesn't really make any difference, just velocity and salt constration.
Using stainless steel for both electrodes,might by some All tube and some plastic pipe and see what 50 turns will do

Plasma

Thu Sept 06 2018, 11:20PM

Registered Member #61406 Joined: Thu Jan 05 2017, 11:31PM
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Posts: 268

Was getting bad reading before with the connection.
Got some Ali pipe and ammonium sulphate and used battery clamps on the pipes, 0.10v ocv this time ocv is more volts than with a load,turning off the water makes a bit of voltage kick, steel core doesn't do anything.
The velocity is slow as the water drips out,compared to the smaller coil.

Any one got some ideas to try,or theory as this doesn't match the MHD layout

1536276010 61406 FT182869 Img 20180907 110847

Put stainless pipe on what was the positive electrode, 0.56v, check the galvanic series chart bit SS has two ranges.

1536290366 61406 FT1630 Img 20180907 151718

Both electrodes are SS still not much water flow 0.38v,maybe steel does work

Plasma

Sat Sept 08 2018, 01:14AM

Registered Member #61406 Joined: Thu Jan 05 2017, 11:31PM
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Posts: 268

Tried doubling up,but the out core doesn't effect the inner one.

1536369241 61406 FT182869 Img 20180908 131101

1536463652 61406 FT1630 Img 20180909 152543

Having a conductor inner and outer with no connection between the two increased the ocv to 0.44v, I think cap ace nice has more effect than inductance, there's not much current flowing, about 10nA,
Probably make more sense to have a longer pipe at single layer than shorter and more layers

Plasma

Sun Sept 09 2018, 11:36PM

Registered Member #61406 Joined: Thu Jan 05 2017, 11:31PM
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Posts: 268

I'm trying to get more power out of the thing, and was thinking about increasing the capatance with TiO2 to try and make more ion's in the water go to the inside or outside of the pipe.
I want beable to test this until I build the final version, I don't really know what question to ask,thoughts.
The two All plates are floating not connected to anything.

1536536170 61406 FT182869 Img 20180910 112841

radiotech

Mon Sept 10 2018, 10:08AM

Registered Member #2463 Joined: Wed Nov 11 2009, 03:49AM
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Posts: 1546

Your work reminds me of a technology used in industry to measure
flow rates electronically for process control by computers.

You may be able to get an unused flow meter to study. The output signal
commonly is 4 - 20 mA Ask at instrument department of a paper mill.

Plasma

Mon Sept 10 2018, 09:09PM

Registered Member #61406 Joined: Thu Jan 05 2017, 11:31PM
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Posts: 268

Checked the link, says what the MHD wiki mentios. Interesting about the current. I have wrapped a copper wire around it and connected it to a DC source to make a magnetic but it didn't really change things.
I though a longer cross section cutting the conductor would make more power.

Dr. Slack

Tue Sept 11 2018, 06:47AM

Registered Member #72 Joined: Thu Feb 09 2006, 08:29AM
Location: UK St. Albans
Posts: 1659

You now have lots of pictures of hosepipe, but it's still unclear exactly what you're trying to *do*.

AFAICS, you are monitoring the voltage drop between two points on the pipe separated by length. In other words, the output potential difference vector is co-linear with the flow vector. This is not a Hall configuration, which requires the magnetic field, the flow, and the output vectors to be normal to each other.

I might be reading the pictures wrongly however. Please post a clear diagram that isolates part of the arrangement to show the relationship between field flow and output. There are similar diagrams in noob books on electric motors and generators showing field, armature motion and output voltage, you know the sort of thing, let's have something of that clarity.

Plasma

Tue Sept 11 2018, 12:54PM

Registered Member #61406 Joined: Thu Jan 05 2017, 11:31PM
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Posts: 268

Thanks for the replied, hope this helps

1536670495 61406 FT182869 Img 20180912 005234

1536670495 61406 FT182869 Img 20180912 005246

hen918

Tue Sept 11 2018, 01:23PM

Registered Member #11591 Joined: Wed Mar 20 2013, 08:20PM
Location: UK
Posts: 556

Plasma wrote ...

Thanks for the replied, hope this helps
...

That looks like a very interesting textbook. What's it called?

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