EDF R&D WP2 : Energetic aspects of urban waste treatments Claire Lecointe, Charlotte Barbut 3 rd AWAST Workshop June st, 2002, Trondheim

ECO-EFFICIENCY AND INDUSTRIAL PROCESSES PLAN Introduction  Inventory of energy data in waste management  Incineration model  Biogas energy recovery model Conclusion

ECO-EFFICIENCY AND INDUSTRIAL PROCESSES Introduction  D3 : Comparable energetic data for the different channels and for the contractor countries  D4 : Energetic models

EDF R&D Inventory of energy data

ECO-EFFICIENCY AND INDUSTRIAL PROCESSES Negative points : few data about energy consumption  Transport : only available data are from the French Agency for the Environment and the Energy Control (ADEME)  Composting : only available data are from LQARS. They are low according to some general values (16,3 kWh/t compared to 20 to 100 kWh/t)  Sorting : no data

ECO-EFFICIENCY AND INDUSTRIAL PROCESSES Positive points : inventory of energy production  Incineration :  energy production and self-consumption reports easily available  data like temperature, pressure… only available for some models of French installations with our own software  Methanisation and landfill :  energy production and self-consumption reports easily available But information differs a lot from country to country and is not complete for all countries

EDF R&D Incineration model

ECO-EFFICIENCY AND INDUSTRIAL PROCESSES Incineration flows with the model entries

ECO-EFFICIENCY AND INDUSTRIAL PROCESSES Strasbourg incineration plant results electricity yield = 5,1% thermal yield = 25,0% ex CM = LHV waste / [1 +  air (1+  ) V A ] ex S = h - T ambiant c p ln(T S /T ambiant ) ex H2O = h - T ambiant s  F = M S *ex S1 / [(M W +M A )*ex CM ]  B = M H2O (ex H2O2 - ex H2O1 ) / [M S (ex S2 - ex S1 )]  T = W e / [M H2O (ex H2O3 - ex H2O2 )]  e = W e / [(M W +M A )*ex CM ]  th = M H2O (ex H2O3 - ex H2O1 ) / [(M W +M A )ex CM ]

ECO-EFFICIENCY AND INDUSTRIAL PROCESSES Strasbourg incineration plant results electricity yield = 5,1% thermal yield = 25,0%

EDF R&D Biogas energy recovery model

ECO-EFFICIENCY AND INDUSTRIAL PROCESSES The different ways of biogas energy recovery

ECO-EFFICIENCY AND INDUSTRIAL PROCESSES Energy recovery with biogas engine  exergy = thermal + physical exergy  electricity production linked to mechanical energy provided by the piston  mechanical energy provided during compression, expansion and combustion for a diesel engine  study of thermal exergy similar to the incineration case

ECO-EFFICIENCY AND INDUSTRIAL PROCESSES Conclusion  Delay for both deliverables  Incineration model : OK  Biogas energy recovery model : at the moment the only available data for biogas engine are theoretical  Problem with biogas production model for methanisation and landfill  Participation in Orleans Case Study  Greenhouse gases study

ECO-EFFICIENCY AND INDUSTRIAL PROCESSES Financial statements most of the cost is personal cost Personal hours on project ContractStatement ~ ?