by Guest » Thu Aug 04, 2005 12:41 am
If you need any great accuracy, you need to know the heat contnent of the gas you are buying. It is ROUGHLY true that the energy content is about 1000 BTU/scf so your equation would be about right for mmbtu/hr to scfh. But the energy content can certainly vary plus or minus 5% from that 1000 btu figure, maybe more. Check with your gas supplier.
Also, low quality gas such as landfill gas can be MUCH less, 500 BTU/scf or less.