Outcomes of the JCAP up to date

Outcomes from JCAP activities are reported to the governmental committees, academic meetings and conferences. The contents of those reports are summarized and published as papers. Information about results of the JCAP is available in the homepage of the JCAP.

The JCAP technical reports summarize the major technological information obtained through each working group's activities from 1997 to 1999.

Ex.1 Diurnal breathing losses measured using different gasoline vehicles and gasolines with various vapor pressures

• Vapor loss can be decreased by decreasing gasoline vapor pressure.l oxidants in summer/ NO2 and suspended particulate matters in winter.
• Vapor loss can also be decreased by applying new vehicle technologies.

Ex.2 Fuel sulfur concentration vs NOx emission in 10.15 mode cycle

• NOx emission decreases with decreasing fuel sulfur concentration.
• Although the tested vehicles satisfy the regulation, NOx emission from lean-burn and direct injection vehicles are higher than others.

Ex.3 Regeneration temperature regions of a continuous regeneration DPF (Fuel S = 50 ppm)

• The minimum regeneration temperature (indicated by green lines) depends on the model year of the tested vehicles.

Ex.4 Evaluation of air simulation model performance:
comparison with the measured ozone concentration data in summer