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Landfill gas

PostPosted: Wed Jul 15, 2009 2:12 am
by peterlom
I recently worked on a landfill site where 1000 cubic metres of gas
containing 35%, or so, of methane was burned continuously.
I suggested that this heat be used to drive a Stirling engine
generating electricity, which could be sold to the National Grid or
used on site, but the idea was dismissed as impractical.
Is it impractical?

Landfill gas

PostPosted: Wed Jul 15, 2009 7:14 am
by stan.hornbaker
Assuming you meant 1,000 cu.m./day or 41.67 cu.m./hr

TVA utilizes methane from a large land fill waste site to be co-fired in a coal steam power generating plant to utilize the heating value rather that burning it in flare-off burner(s) on site.

In my opinion there are NO Stirling engines currently available to make this an economical application for 35% methane fuel gas.