Biogas - Household Energy Needs
 
Home Home
Renaissance Farms Renaissance
Farms
Gaited Horses Gaited
Horses
Endurance Riding Endurance
Riding
Kasten Family Family
Journey C.C.  Journey C. C. 
   
     
Item Value Unit

Notes
biogas energy per ft^3 750.0 BTU/ft^3  
       
Domestic Hot Water     Heat 60 gallons per day
  Cold water temperature 57 dF  
  Hot water temperature 120 dF  
  Quantity 60 gallons  
  Weight 500.7 pounds 8.3452641 pounds / gallon
  Energy 31545.1 BTU  
  Energy 9.24 kwh 0.293071070172222 BTU / watt * hour
  Heater Efficiency 0.62   http://www.eere.energy.gov/femp/technologies/eep_gas_waterheaters.cfm
  Total Energy 43532.2 BTU/day  
  Biogas volume 58.0 ft^3/day  
  Biogas volume 2.15 yards/day  
  Biogas volume 434.16 gallons/day foot^3 = 7.48051948051948 gallon
     
Cooking Hot Water     Boil 2 gallons of cold water
  Cold water temperature 57 dF  
  Hot water temperature 212 dF  
  Quantity 2 gallons  
  Weight 16.7 pounds 8.3452641 pounds / gallon
  Energy 2587.0 BTU  
  Energy 0.76 kwh 0.293071070172222 BTU / watt * hour
  Heater Efficiency 0.62    
  Total Energy 3570.1 BTU/day  
  Biogas volume 4.8 ft^3/day  
  Biogas volume 0.18 yards/day  
  Biogas volume 35.61 gallons/day foot^3 = 7.48051948051948 gallon
     
Digester Losses      
  Single Drum @ R19 124.1 BTU/hr At 35 dF outside temperature
  Three Drums 372.2 BTU/hr  
  Loss over 24 hours 8931.9 BTU/day  
  Heater Efficiency 0.62    
  Total Energy 12326.0 BTU/day  
  Biogas volume 16.4 ft^3/day  
  Biogas volume 0.61 yards/day  
  Biogas volume 122.93 gallons/day foot^3 = 7.48051948051948 gallon
     
     
Total Biogas 79.2 ft^3/day  
  in yards/day 2.93 yards/day  
  in gallons/day 592.70 gallons/day