Hydronic Manifold Calculator

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Naturally Aspirated
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Hydronic Manifold Calculator

Post by Naturally Aspirated » Sun Sep 27, 2015 7:09 am

Hey, been some time since I posted!

I've been doing some work on hydronics lately and I created a handy manifold calculator that may come in handy if you are looking for flow and Btu numbers from your loops. This worksheet is based off a constant pressure scenario, a pump such as Grundfos Alpha, running in a constant head setting is how it works. There are two tabs on the worksheet, one for 1" supply&return ports x 5/8" zone ports, and one for 3/4" supply & return ports x 1/2" zone ports.

The blue cells are manual entry of variables, all the white cells are calculated. What variables you will need to make full calculations:
  • Distance of header pipe
    Delta T, intended temperature drop of system
    Percent of water vs antifreeze, (I used methanol for the built in specific heat calculations)
    Head pressure maintained by circulator.
    Distance of pipe for each of the zones/loops.
    [li]Optional: manual entry of resistance for balancing each of the zones/loops.
http://www.nealmastel.com/owb/HydronicM ... lator.xlsx

Enjoy! :thumbup:

Neal
Miss Farad was pretty and sensual, and charged to a reckless potential; but a rascal named Ohm conducted her home - Her decline was, alas, exponential....
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Yotehunter66
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Re: Hydronic Manifold Calculator

Post by Yotehunter66 » Sat Oct 03, 2015 9:12 am

Thanks for posting.
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User avatar
Naturally Aspirated
Posts: 20
Joined: Mon Jun 23, 2014 11:23 am
OWB brand: Central Boiler
OWB Model: Maxim M250
Location: Wallace, SD
Contact:

Re: Hydronic Manifold Calculator

Post by Naturally Aspirated » Mon Oct 05, 2015 9:47 am

Anytime!

Neal
Miss Farad was pretty and sensual, and charged to a reckless potential; but a rascal named Ohm conducted her home - Her decline was, alas, exponential....
Send bitcoins! 1GEsGKzP5xK9e45YDjmRzGYpnhwT3oNbvj
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