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For you electricians and wannabes
hot_rod
Member Posts: 23,856
I had to order one of these. They have tees, sweatshirts, aprons available.
We need a hydronics version!
We need a hydronics version!
Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream
trainer for Caleffi NA
Living the hydronic dream
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Comments
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Dead Men paved the way for all the trades. Mr. Volta, Mr.Ampère, and Mr. Ohm. The Italians, French, and Germans.Serving Northern Maine HVAC & Controls. I burn wood, it smells good!0
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Ok. I’ll bite. Volt is pressure. Ohm is friction and amp is flow... or something like that
Yours, Larry0 -
Yup. Pressure, flow, Head loss. Then you have temperature drop/rise.
Would be better done with minions i thumbnails.0 -
High pressure to low pressure; hot to cold, path of least resistance, vena contracta, WRT, etc.0
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Except that electrons flows - to +.Bob Harper said:High pressure to low pressure; hot to cold, path of least resistance, vena contracta, WRT, etc.
Also current will more often than not take every path, not just the lowest resistance.
Single pipe 392sqft system with an EG-40 rated for 325sqft and it's silent and balanced at all times.
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I for one miss my old "Carpe Hydronicom" tee shirt.
Any one else remember those shirts.0 -
We've got some shirts here and may get working on some new ones: https://teespring.com/stores/heatinghelpcom-store
Thanks for the inspiration!President
HeatingHelp.com1 -
Fluids and heat will take every path proportionally exactly the same way electricity will...ChrisJ said:
Except that electrons flows - to +.Bob Harper said:High pressure to low pressure; hot to cold, path of least resistance, vena contracta, WRT, etc.
Also current will more often than not take every path, not just the lowest resistance.
In fact usually they teach all engineers either basic circuits or thermodynamics at most universities to teach them the theory of how to solve that type of problem in all sorts of applications.0 -
My kids got this for me a few years ago.
Maybe good for some ideas for hydronics?
Yes, I really am an electrician.
That is a plugging/jogging diagram for reversing 3 phase motors.0 -
"Electricity is really just organized lightning."-- George Carlin
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Not exactly. Electrons tend to flow at the surface of a piece of wire instead of going through the center.mattmia2 said:
Fluids and heat will take every path proportionally exactly the same way electricity will...ChrisJ said:
Except that electrons flows - to +.Bob Harper said:High pressure to low pressure; hot to cold, path of least resistance, vena contracta, WRT, etc.
Also current will more often than not take every path, not just the lowest resistance.Just another DIYer | King of Prussia, PA
1983(?) Peerless G-561-W-S | 3" drop header, CG400-1090, VXT-240 -
> @Hap_Hazzard said:
> (Quote)
> Not exactly. Electrons tend to flow at the surface of a piece of wire instead of going through the center.
That's pretty much AC only.
https://en.m.wikipedia.org/wiki/Skin_effectSingle pipe 392sqft system with an EG-40 rated for 325sqft and it's silent and balanced at all times.
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Also, more the abstract idea of a schematic more than the specific physics of it in the components. Just the idea that electricity follows the path of least resistance is wrong. It follows all paths in proportion.0
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> @mattmia2 said:
> Also, more the abstract idea of a schematic more than the specific physics of it in the components. Just the idea that electricity follows the path of least resistance is wrong. It follows all paths in proportion.
Can you imagine if it was true? Only the building with the highest load "lowest resistance" would get power from the grid. All others would get nothing.Single pipe 392sqft system with an EG-40 rated for 325sqft and it's silent and balanced at all times.
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