logo France | logo UK

Homepage | Organic waste | Anaerobic digestion | Biogas | Biogas installations | Economy of biogas installations |
 Biogas incomes | Sludge | Key to success for a biogas project Contact

Biogas Cogeneration


Electricity and heat cogeneration of biogas

Cogeneration is the production of electricity and heat out of biogas.

The cogeneration module consists of an engine which actuates an alternator - generator of electric current.

Un groupe de cogénération possède un rendement électrique de 35%.
 
The recovery of heat makes it possible to reach a total output of 85% if all produced heat is used.

Two types of engine can be used:

  • Gas engine: runs only on biogas,  high investment and maintenance costs 
  • Dual fuel engine: - the injection of a minor amount of fuel (10% of the power consumption), is used to ignite the mixture air/biogas. This type of engine is expensive in investment but generates purchase expenses of purchase and fuel storage expenses. The electric output is better than for a gas engine especially for small powers
biogas cogeneration engine
Biogas cogeneration engine




Headings:


Contact Top
© 2009 Naskeo Environnement