Informal Group on Gaseous Fuelled Vehicles (GFV)

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Presentation transcript:

Informal Group on Gaseous Fuelled Vehicles (GFV) Informal document No. GRPE-60-20 (60th GRPE, 7-11 June 2010, agenda item 6.2) Informal Group on Gaseous Fuelled Vehicles (GFV) Report to 60th GRPE June 2010

Meetings GFV Group 9th GFV meeting 10th GFV meeting 28 April 2010 Brussels (CLEPA) 10th GFV meeting 08 June 2010 Geneva

Agenda items GFV NMHC + CH4 versus THC in R.115 Retrofitted NG vehicles Dual-fuel (diesel-gas) HDV Test requirements R.49 (OEM) Requirement R115 (retrofit) Mixed-fuel (petrol-gas) LDV Improvements of R.115

NMHC + CH4 versus THC Retrofitted NG vehicles CH4 correction factor for Retrofit NGV justified? 2 small evaluation studies performed : TNO: 4 vehicles – JRC: 2 vehicles To determine the CH4 conversion of a methane optimized catalyst a petrol optimized catalyst

Result test programme CH4 efficiency Methane Catalyst: ~ 97% CH4 efficiency Petrol Catalyst: ~91% Average K factor = ~0.31 Applicablility under consideration Legal aspects EC

Dual-Fuel (diesel-gas) HDV Growing interest for Dual-Fuel HDV Workshop 30-31 March 2010 Brussels OEM requirements  R.49 Retrofit provisions  R.115 and R.49 Dual Fuel approaches for NRMM Proposed actions in GFV group: Investigation of the different Dual-Fuel types and test-procedures needed Task-force for HD-DF starting with R.49 Parallel provisions for R.115 will be investigated to.

Mixed-fuel (petrol-gas) LDV No emission requirements for petrol-gas (bi-fuel) vehicles who can use gas and petrol not only separately but also at the same time: “mixed fuel types”. First proposal for the calculation of THC and CO2 emissions. A special task-force will investigate technologies and test procedures

Improvements R115 Ongoing activity in the GFV group to update and improve the R.115 text. A separate proposal for clarification in R115 concerning the applicability of Euro 5 TA vehicles was tabled in the 10th GFV. In existing situation will R.115 suppl. 4 (retrofit) be applicable for Euro 5 from august 2010. The proposal for more clarification resulted in a fundamental discussion on retrofit versus OEM gas vehicle solutions of Euro 5 vehicles. Discussion will continue in GFV group

Next GFV-meetings GFV meeting planned in October 2010 (no date/place confirmed yet) Request for a half-day meeting in conjuncting with 61th GRPE. --------------