Revision as of 07:31, 22 May 2016

Biogas BTUs is 600 btu per cubic foot - [1]
Molecular weight of methane - 16 grams/mole
ARTI Biogas - 1 cubic meter - and 250-500 g of gas per day. [2]. 250 gal fermenter, 200 gal collector -
1 cubic foot of methane = 5 grams
1 cu meter = 35 cu ft
1 cu meter methane = 175 grams methane
BTU to boil one gallon of water - from 60 = 1200 BTU
BTU is energy required to lift one pound of water 1 degree F. From 62F to 212 is 150 BTUs for one lb.
Efficiency of a cooktop is 30%, inductio cooktop is 80% - [3]
So one would need 6 cubic feet of methane to boil a gallon.
1 lb of chicken manure produces 5 cu ft of methane - [4]
Typical loading rate - .1 lb/cu ft/day. - [5]
Typical retention time - 30 days - [6]
Optimal C:N ratio for digestion is 30. Would need to add 1 kg of sawdust per person per day, using separating toilet - to process human feces in a digester - [7]
Insinkerator is claimed to be the secret to 24 hr biogas cycles - [8]

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