bioenergy

Bioenergy Project For a 600 ton/day of animal manure (dairy cow), determine the following: (a) size the digester volume, (b) the gas holder volume and (c) the daily gas production (d) the annual electricity generation (e) sketch diagram Poultry (layers) (per bird) 2. Energy Content of Bio-gas from Various Animals Swine Dairy Beef (per (per (per head) head) head) Weight (lbs.) 135 800 Energy Content nergy content 2,300 27.800 16,600 ad/day gy content (Btu/ 1,500 18,000 10,700 180 110 of gross to Site digester arker, James C 2001. Methane Fuel Gas from Livestock Westes A Summary, North tate University Cooperative Extension Service Publication EBAE071-80 Continue : Bio-gas (gas net returns from various animals) 28 Elle Table 3. Bio-gas Gas Net Returns from Various Animals Swine Dairy Poultry Beet (layers) Electricity Equivalent per head per year. kWh (20% combined 32 385 230 25 generating efficiency Value 5.085/kWh) $2.76 $32.73 $19.55 50.21 Natural Gas Equivalent Mcf 0.55 6.60 3.90 0.04 Value ($11.04/Mch) 56.07 572.89 $43.07 50.44 Propane (LP Gas) Equivalent Gallons 6 72 43 0.45 Value le $2.00/gallon) $12.00 $144.00 586.00 $0.90 No. 2 Fuel Oil Equivalent Gallons 4 48 28 0.3 Value ($2.00/gallon) 58.00 596,00 $56.00 50.60 Source: Barker, James C2001. Methane Fuel Gas from Livestock Wastes: A Som mary, North Carolina State University Cooperative Extension Service Publica tion HEBAE OZI-80. Updated to 2006 prices by NCAT