Feb
Electricity Plant
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what will be the capacity of a biogas plant to produce 15kwh of electricity?
hi lawrence, i want to know the capacity in cubic metre.. that is i want know the specific construction details about digester and its tank
The capacity of what?
Here is an approximate amount of biogas to generate 15 KWH of electrical energy.
Thermal energy / standard volume
6.435 KWh/m³ (methane = 65%, can vary from 45-70 %)
1 m³ = 35.314666721 cubic foot
Thermal value = .182219 KWh / SCF
Thermal value = 182.219 Wh / SCF
Energy Conversion Efficiency
Electricity Only = 35%
Electricity and Heat = 75% (35% Electricity + 50% Heat)
Heat Only = 90%
Conversion to Electricity Only
182.218 WH / SCF x 35% efficiency = 63.78 Wh / SCF
Biogas required to generate 15 KWh of electricity
15,000 Wh / 63.78 Wh / SCF = 235 SCF of biogas
http://www.arizonaenergy.org/Analysis/FossilFuels/Biogas.htm
http://www.fao.org/docrep/T0541E/T0541E0b.htm
http://www.kolumbus.fi/suomen.biokaasukeskus/en/enperus.html
http://www.onlineconversion.com/volume.htm
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