Two styles of electrostatic treatment vessels, one is a circuitous snake route. Each trough has 11" square plates 1" apart. Easy to calculate plate area vs volume.a problem.
Now, also looking at a coaxial pipe within a pipe. 4" inner pipe with an 8" outer pipe. I can't get my head around the treatment area vs volume on coaxial pipes. The electrostatic voltage will have to higher because of more distance between plates, not
Is the plate area just the area of the inner pipe?
Is it a geometric mean of the inner and outer?
Trying to maximize treatment area vs volume.
I like the coaxial version, my son is more involved with the circuitous snake route version. Sadly he is so busy with other work that his build is going slow.
Add to that he is back in school to add a mechanical engineering degree to his chemistry degree. Hurry up kid! I want to see it. :-)
On Tuesday, October 31, 2023 at 12:11:16 AM UTC+11, Lamont Cranston wrote:not a problem.
Two styles of electrostatic treatment vessels, one is a circuitous snake route. Each trough has 11" square plates 1" apart. Easy to calculate plate area vs volume.
Now, also looking at a coaxial pipe within a pipe. 4" inner pipe with an 8" outer pipe. I can't get my head around the treatment area vs volume on coaxial pipes. The electrostatic voltage will have to higher because of more distance between plates,
Is the plate area just the area of the inner pipe?Pretty much.
Is it a geometric mean of the inner and outer?The field is more intense around the smaller inner pipe, so that's where most of the action will happen.
Trying to maximize treatment area vs volume.Coax set-ups are less fiddly, and have fewer spacers to with fewer options for the spacers to move around, but it's hard to get a lot of surface area,
I like the coaxial version, my son is more involved with the circuitous snake route version. Sadly he is so busy with other work that his build is going slow.
Add to that he is back in school to add a mechanical engineering degree to his chemistry degree. Hurry up kid! I want to see it. :-)--
Bill Sloman, Sydney
Two styles of electrostatic treatment vessels, one is a circuitous snake route. Each trough has 11" square plates 1" apart. Easy to calculate plate area vs volume.a problem.
Now, also looking at a coaxial pipe within a pipe. 4" inner pipe with an 8" outer pipe. I can't get my head around the treatment area vs volume on coaxial pipes. The electrostatic voltage will have to higher because of more distance between plates, not
Is the plate area just the area of the inner pipe?
Is it a geometric mean of the inner and outer?
Trying to maximize treatment area vs volume.
I like the coaxial version, my son is more involved with the circuitous snake route version. Sadly he is so busy with other work that his build is going slow.
Add to that he is back in school to add a mechanical engineering degree to his chemistry degree. Hurry up kid! I want to see it. :-)
Thanks, Mikek
Two styles of electrostatic treatment vessels, one is a circuitous snake route. Each trough has 11" square plates 1" apart. Easy to calculate plate area vs volume.a problem.
Now, also looking at a coaxial pipe within a pipe. 4" inner pipe with an 8" outer pipe. I can't get my head around the treatment area vs volume on coaxial pipes. The electrostatic voltage will have to higher because of more distance between plates, not
Is the plate area just the area of the inner pipe?
Is it a geometric mean of the inner and outer?
Trying to maximize treatment area vs volume.
I like the coaxial version, my son is more involved with the circuitous snake route version. Sadly he is so busy with other work that his build is going slow.
Add to that he is back in school to add a mechanical engineering degree to his chemistry degree. Hurry up kid! I want to see it. :-)
Thanks, Mikek
On Monday, October 30, 2023 at 8:11:16 AM UTC-5, Lamont Cranston wrote:not a problem.
Two styles of electrostatic treatment vessels, one is a circuitous snake route. Each trough has 11" square plates 1" apart. Easy to calculate plate area vs volume.
Now, also looking at a coaxial pipe within a pipe. 4" inner pipe with an 8" outer pipe. I can't get my head around the treatment area vs volume on coaxial pipes. The electrostatic voltage will have to higher because of more distance between plates,
Is the plate area just the area of the inner pipe?
Is it a geometric mean of the inner and outer?
Trying to maximize treatment area vs volume.
I like the coaxial version, my son is more involved with the circuitous snake route version. Sadly he is so busy with other work that his build is going slow.
Add to that he is back in school to add a mechanical engineering degree to his chemistry degree. Hurry up kid! I want to see it. :-)Here ya go... <https://phys.libretexts.org/Bookshelves/Electricity_and_Magnetism/Electricity_and_Magnetism_(Tatum)/05%3A_Capacitors/5.03%3A_Coaxial_Cylindrical_Capacitor>
Thanks, Mikek
On Monday, October 30, 2023 at 11:00:19 AM UTC-5, John Smiht wrote:not a problem.
On Monday, October 30, 2023 at 8:11:16 AM UTC-5, Lamont Cranston wrote:
Two styles of electrostatic treatment vessels, one is a circuitous snake route. Each trough has 11" square plates 1" apart. Easy to calculate plate area vs volume.
Now, also looking at a coaxial pipe within a pipe. 4" inner pipe with an 8" outer pipe. I can't get my head around the treatment area vs volume on coaxial pipes. The electrostatic voltage will have to higher because of more distance between plates,
Is the plate area just the area of the inner pipe?
Is it a geometric mean of the inner and outer?
Trying to maximize treatment area vs volume.
I like the coaxial version, my son is more involved with the circuitous snake route version. Sadly he is so busy with other work that his build is going slow.
Even though I'm looking at the equation, I still can't reconcile B/A and how it relates to the area of the inner electrode (pipe).Add to that he is back in school to add a mechanical engineering degree to his chemistry degree. Hurry up kid! I want to see it. :-)Here ya go... <https://phys.libretexts.org/Bookshelves/Electricity_and_Magnetism/Electricity_and_Magnetism_(Tatum)/05%3A_Capacitors/5.03%3A_Coaxial_Cylindrical_Capacitor>
Thanks, Mikek
Weak math background.
But, I did note, that making the inner pipe larger and the length longer increases the capacitance, there is a limit where our
square wave drive starts to have a long rise and fall time. (6MΩ series resistor to work the switch against.)
We may just fall back on 60Hz drive instead of the variable frequency drive that we have now.
Here's the calculator I used. https://www.vcalc.com/wiki/TylerJones/Capacitance+of+a+Cylindrical+Capacitor
Thanks, Mikek
On Monday, October 30, 2023 at 11:15:15 AM UTC-5, Lamont Cranston wrote:plates, not a problem.
On Monday, October 30, 2023 at 11:00:19 AM UTC-5, John Smiht wrote:
On Monday, October 30, 2023 at 8:11:16 AM UTC-5, Lamont Cranston wrote:
Two styles of electrostatic treatment vessels, one is a circuitous snake route. Each trough has 11" square plates 1" apart. Easy to calculate plate area vs volume.
Now, also looking at a coaxial pipe within a pipe. 4" inner pipe with an 8" outer pipe. I can't get my head around the treatment area vs volume on coaxial pipes. The electrostatic voltage will have to higher because of more distance between
Is the plate area just the area of the inner pipe?
Is it a geometric mean of the inner and outer?
Trying to maximize treatment area vs volume.
I like the coaxial version, my son is more involved with the circuitous snake route version. Sadly he is so busy with other work that his build is going slow.
Ok, Mike -Even though I'm looking at the equation, I still can't reconcile B/A and how it relates to the area of the inner electrode (pipe).Add to that he is back in school to add a mechanical engineering degree to his chemistry degree. Hurry up kid! I want to see it. :-)Here ya go... <https://phys.libretexts.org/Bookshelves/Electricity_and_Magnetism/Electricity_and_Magnetism_(Tatum)/05%3A_Capacitors/5.03%3A_Coaxial_Cylindrical_Capacitor>
Thanks, Mikek
Weak math background.
But, I did note, that making the inner pipe larger and the length longer increases the capacitance, there is a limit where our
square wave drive starts to have a long rise and fall time. (6MΩ series resistor to work the switch against.)
We may just fall back on 60Hz drive instead of the variable frequency drive that we have now.
Here's the calculator I used. https://www.vcalc.com/wiki/TylerJones/Capacitance+of+a+Cylindrical+Capacitor
Thanks, Mikek
The surface area of a cylinder is the perimeter times the length. So, in this case, they say the radius of the inner cylinder is a. The perimeter of the circle is the diameter
of the circle times pi. So then the perimeter is 2*a*pi. Well, then the area of the inner tube is
2*pi* a*L where L is the length. Make sense?
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