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For you electricians and wannabes

hot_rod
hot_rod Member Posts: 16,492
I had to order one of these. They have tees, sweatshirts, aprons available.

We need a hydronics version!
Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream
rick in AlaskaSolid_Fuel_Manicy78Grallert

Comments

  • JUGHNE
    JUGHNE Member Posts: 9,817
    And not all people realize that all those electrical terms refer to "Dead Men".
    Solid_Fuel_ManIntplm.
  • Solid_Fuel_Man
    Solid_Fuel_Man Member Posts: 2,499
    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!
  • mattmia2
    mattmia2 Member Posts: 5,709
    or that there are thermodynamic equivalents of those
    Solid_Fuel_Man
  • hot_rod
    hot_rod Member Posts: 16,492
    mattmia2 said:

    or that there are thermodynamic equivalents of those

    That's what we need to come up with!

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • Larry Weingarten
    Larry Weingarten Member Posts: 2,583
    Ok. I’ll bite. Volt is pressure. Ohm is friction and amp is flow... or something like that :p
    Yours, Larry
  • mikeg2015
    mikeg2015 Member Posts: 1,187
    Yup. Pressure, flow, Head loss. Then you have temperature drop/rise.

    Would be better done with minions i thumbnails.
  • Bob Harper
    Bob Harper Member Posts: 922
    High pressure to low pressure; hot to cold, path of least resistance, vena contracta, WRT, etc.
  • ChrisJ
    ChrisJ Member Posts: 13,042
    edited March 2020

    High pressure to low pressure; hot to cold, path of least resistance, vena contracta, WRT, etc.

    Except that electrons flows - to +.

    Also current will more often than not take every path, not just the lowest resistance.

    Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment
    Solid_Fuel_Man
  • Intplm.
    Intplm. Member Posts: 1,384
    I for one miss my old "Carpe Hydronicom" tee shirt.
    Any one else remember those shirts.
  • Erin Holohan Haskell
    Erin Holohan Haskell Member, Moderator, Administrator Posts: 1,888
    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.com
    Solid_Fuel_Man
  • mattmia2
    mattmia2 Member Posts: 5,709
    ChrisJ said:

    High pressure to low pressure; hot to cold, path of least resistance, vena contracta, WRT, etc.

    Except that electrons flows - to +.

    Also current will more often than not take every path, not just the lowest resistance.

    Fluids and heat will take every path proportionally exactly the same way electricity will...

    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.
  • JUGHNE
    JUGHNE Member Posts: 9,817
    edited March 2020


    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.
  • HomerJSmith
    HomerJSmith Member Posts: 1,615
    "Electricity is really just organized lightning."-- George Carlin
  • Hap_Hazzard
    Hap_Hazzard Member Posts: 2,756
    mattmia2 said:

    ChrisJ said:

    High pressure to low pressure; hot to cold, path of least resistance, vena contracta, WRT, etc.

    Except that electrons flows - to +.

    Also current will more often than not take every path, not just the lowest resistance.

    Fluids and heat will take every path proportionally exactly the same way electricity will...
    Not exactly. Electrons tend to flow at the surface of a piece of wire instead of going through the center.
    Just another DIYer | King of Prussia, PA
    1983(?) Peerless G-561-W-S | 3" drop header, CG400-1090, VXT-24
  • ChrisJ
    ChrisJ Member Posts: 13,042
    > @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_effect
    Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment
    mattmia2HomerJSmith
  • mattmia2
    mattmia2 Member Posts: 5,709
    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.
  • ChrisJ
    ChrisJ Member Posts: 13,042
    > @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 quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment
    mattmia2