Induction heating of a large steel pipe - CR4 Discussion Thread

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Scout02 Active Contributor Join Date: Feb 2007 Posts: 18	Induction heating of a large steel pipe 03/29/2009 1:28 PM
	I have a steel pipe 16" dia X 8' long X 1/4" wall. I will load this pipe with waste wood, close the ends (not totally airtight) and heat this wood to about 600 F. The idea is to produce 'bio-char' from this wood without oxygen. Once it gets hot enough the wood will produce biogas and H. This gas can be used to sustain the high internal heat by running this gas through external burners under the 16" pipe. This bio-char will be used as a soil amendment. Can I use an induction coil to get this system up to a self-sustaining temperature? How many watts will it take. Or what shape do I need on the coils that will lay along side of the pipe. (Say, my gas burners would be at 6 o'clock and the coils would be at 8 & 4 O'Clock) Scout 2 __________________ There is something fascinating about science. One gets such wholesale returns of conjecture out of such a trifling investment of fact. Mark Twain 1883
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	Pathfinder Tags: "induction heating" "biochar" "terra preta" "bio-

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Highlandfab Member Join Date: Mar 2009 Location: Nova Scotia Posts: 5	#1 Re: Induction heating of a large steel pipe 03/29/2009 8:04 PM
	Miller welding makes an induction heater for pipe. It would be a place to check out.
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Milo Guru Join Date: Jul 2006 Location: "Dancing over the abyss." Posts: 4884 Good Answers: 243	#2 Re: Induction heating of a large steel pipe 03/29/2009 10:23 PM
	So is the induction to heat the pipe, or the wood waste? Frequencies needed for wood and steel are NOT the same... This will be a batch process, ehh? What is scale? AIr quality issues could get you on the Neighbors bad side and on the epa's shortlist... milo __________________ People say between two opposed opinions the truth lies in the middle. Not at all! Between them lies the problem, what is unseeable,eternally active life, contemplated in repose. Goethe
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garth Guru Join Date: Sep 2006 Location: NSW Australia Posts: 1101 Good Answers: 23	#3 Re: Induction heating of a large steel pipe 03/30/2009 7:32 AM
	I would stick to gas burners for all the heating this is the cheapest and most convenient method. LPG is cheap and adaptable you would need a tank installed to get the bulk rate or natural gas if your premises has a large enough supply meter. Induction heating machine for your process would cost thousands of $. Power supply requirements are very high possible new wiring and mains supply more $. Higher maintenance costs for coil set up and design costs. power efficiency of induction heating is not good more $ you are already half way there with your biogas burners so build on that for a complete system. __________________ Dont get on to the roundabout if you dont know how to get off
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Users who posted comments:

garth (1); Highlandfab (1); Milo (1)

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