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1

Electronics / Realtime BTU Output Display

« on: January 13, 2013, 08:39:00 PM »

I am building a Gasification OWB and would like to set it up to display and datalog the realtime BTU output of the boiler.  I think it would be cool to see what kind of a demand that I have on the boiler as well as how many BTU's that it can output. I plan on using an old anhydrous tank for heat storage, so it would be cool to get some numbers on how well that performs as well.  I program PLC's and and design control systems for a living, so I'm kind of a tech junkie, but I do not know a lot about HVAC.  What would I need to calculate this?  I'm assuming that a flow meter of the water exiting or returning the boiler along with a delta T reading of the supply and returns would be able to get these calculations but I'm not sure.  I know that 1 BTU is the energy required to heat 1 pound of water 1 degree but that's about it.  I do have a web sever set up with my current home heating system which is using a add on wood furnace and a propane forced air furnace. 

If anyone wants to check it out, the site is:
http://38.121.112.79:8080/
Username: guest
Password: guest

I will be setting up my OWB the same way when I complete it so that I will be able to check water temps, flue temps, ect.  I will keep everyone posted.
Thanks.

2

Home Made / Wood Gasification Boiler Build

« on: January 10, 2013, 03:41:28 PM »

A friend of mine and I are starting construction of a gasification boiler.  We plan on building it similar to the Portage and Main 250.  We are building it in SolidWorks first to test everything and make our .dxf files for the plasma table.  I will post some screen shots of what we have so far.  One of the things that I am confused about is building the nozzle in the floor.  I would like to make it replaceable.  Does anyone have pictures or ideas for me?  It seems very difficult to find information on the size and shape of the nozzle.