Outdoor Wood Furnace Info
All-Purpose OWF Discussions => General Outdoor Furnace Discussion => Topic started by: NaturallyAspirated on September 27, 2015, 06:05:05 AM
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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.
- Optional: manual entry of resistance for balancing each of the zones/loops.
http://www.nealmastel.com/owb/HydronicManifoldCalculator.xlsx (http://www.nealmastel.com/owb/HydronicManifoldCalculator.xlsx)
Enjoy! :thumbup:
Neal