N2O emission of HD vehicles
report
N2O is known to be a greenhouse gas with a high global warming potential, approximately 296 times higher than that of CO2 [11]. In road vehicles N2O is mostly formed by reactions in the exhaust catalyst. The IPCC (Intergovernmental Panel on Climate Changes) uses emission factors from research performed in the late 1980's and early 1990's to calculate the contribution of road traffic to the global emission of N2O. however, in the last decades much has changed with respect to vehicle technology. Furthermore, the currently available N2O emission factors for Heavy Duty (HD) vehicles have been extrapolated from the Light Duty (LD) emission factors by an assumed correlation with NOx emissions. Because of the high global warming potential, a clear need existed to derive reliable emission factors for N2O that reflect the pasr, present and expected future contribution from traffic (The object period is defined as 1988 until 2010). A measuring programme of substantial size and diversity in vehicle technologies was considered far more relevant than a theoretical approach based on literature.
Topics
TNO Identifier
367364
Publisher
TNO
Collation
62 p. (incl. bijl.)
Place of publication
Delft