1. ACEA input to Evaporation workshop
Cost/benefits analysis
Taking into account the uncertainties (emission factors, damage cost…), ACEA note that benefits from emission reductions are very close to the technical costs. Even by adding the fuel savings, the order of magnitude of benefits is in the range of 1 euro per vehicle and per year.

2. Canister ageing procedure
2 proposals on the table :
Meadwestvaco
The proposal is derived from US Regulation.
2. Delphi
The proposal is derived from internal technical requirements.
ACEA has preferred to work on Delphi option.
For the moment, the general philosophy of Delphi proposal is accepted by ACEA,
but some adjustments are needed tocreate an European certification test which
can be also be performed by Type Approval Authorities.

3. Canister ageing procedure : ACEA views
Use of an aged canister during evaporation test
Validation Methods have been developed and required by manufacturers in order
to develop canisters to be operational even after extreme environmental conditions
and over the lifetime of the vehicle.
These very extreme conditions can cover Russian Winter, Morocco Summer,
thick dust atmosphere…and robustness validation for a mileage higher than the
Regulation.
Durability is understood to guarantee a quantified performance in normal conditions
and over the period defined by the regulation:
2.0 g/test over 160 kkm.
Objective : to define from the validation procedure, significant
parameters and range for development of a certification procedure which also can
be performed by TAA.
In parallel, Manufacturers will continue to perform the validation tests.

4. Delphi proposal Need to be
optimised in order to avoid a significant increase in certification schedule
certification

8. Canister ageing procedure : ACEA views (1)
Canister « conditioning »
Temperature conditioning test
Canister is brought to temperatures from -10°C to 60°C over a cycle which lasts 4 hours with no air/flow through the canister.
Operation is repeated 50 times.
If test is performed automatically, the 50 cycle test is run for 200 hours (9 consecutive days)
2. Canister vibration conditioning test
Minimum 12 hours in the vertical axis with the canister mounted as per its orientation in the vehicle. Overall Grms > 1.5 with frequency between 10 to 50 Hz.

9. Canister ageing procedure : ACEA views (2)
Carbon canister ageing procedure
Two options are proposed at the request of the Manufacturers
Option A : ageing over 150 cycles
Carbon canister stabilisation
The Carbon Canister shall be stabilised over 30 cycles using the [E10] reference fuel by loading the canister to 2 g breakthrough , or loading completed when the
equivalent concentration level at the vent hole reaches 3000 ppm, with a fuel
vapour fill-rate between 40 g/h to 80 g/h.
Note : in order to reduce the test duration, a higher vapour fill rate can be requested by manufacturer
Each canister-loading step shall be preceded by canister purging with a minimum of 300 canister bed volume exchanges between 15 to 25 standard litres per minutes (DIN 1343, standard conditions).
If higher number of canister bed volumes and standard litres per minute are used, the numbers shall be reported in the test report.

10. Canister ageing procedure : ACEA views (3)
Option A : ageing over 150 cycles
2. Determination of nominal Butane Working Capacity (BWC)
The canister must be loaded to 2 g breakthrough, with a 50/50 mixture of butane/nitrogen, at a rate of
15 g butane per hour.
Each canister-loading step shall be preceded by canister purging with a minimum of 300 canister bed volume exchanges between 15 to 25 standard litres per minutes (DIN 1343, standard conditions).
If higher number of canister bed volumes and standard litres per minute are used, the numbers shall be reported in the test report.
Run at least 10 cycles of loading/purging
The BWC is the average mass of the two last cycle loads to the breakthrough

11. Canister ageing procedure : ACEA views (4)
Option A : ageing over 150 cycles
3. Fuel vapour ageing
The Carbon Canister shall be aged over 120 cycles using the [E10] reference fuel
by loading the canister to 2 g breakthrough, or loading completed when the
equivalent concentration level at the vent hole reaches 3000 ppm, with a fuel vapour
fill-rate between 40 g/h to 80 g/h.
Note : in order to reduce the test duration, a higher vapour fill rate can be requested by manufacturer.
Each canister-loading step shall be preceded by canister purging with a minimum of
300 canister bed volume exchanges between 15 to 25 standard litres per minutes
(DIN1343, standard conditions).
If higher number of canister bed volumes and standard litres per minute are used, the
numbers shall be reported in the test report.

12. Canister ageing procedure : ACEA views (5)
Option A : ageing over 150 cycles
4. Determination of aged Butane Working Capacity (BWC)
The canister must be loaded to 2 g breakthrough with a 50/50 mixture of butane/nitrogen, at a rate of 15 g butane per hour.
Each canister-loading step shall be preceded by canister purging with a minimum of 300 canister bed volume exchanges between 15 to 25 standard litres per minutes (DIN 1343, standard conditions).
If higher number of canister bed volumes and standard litres per minute are used, the numbers shall be reported in the test report.
Run at least 10 cycles of loading/purging.
The BWC is the average mass of the two last cycle loads to the breakthrough.
The aged BWC must be greater or equal to 95 % of the nominal BWC.
If the target 95 % is not reached, switch to option B.

13. Canister ageing procedure : ACEA views (6)
Option B : ageing over 300 cycles or degradation of BWC of less than 2%
In this option, there is no specific stabilisation of the BWC.
1. Fuel vapour ageing
The Carbon Canister shall be aged over 300 cycles using the [E10] reference fuel
by loading the canister to 2 g breakthrough , or loading completed when the
concentration level at the vent hole reaches 3000 ppm, with a fuel vapour fill-rate between 40 g/h to 80 g/h.
Or canister aging can be stopped if degradation of working capacity less than 2%
over last 50 cycles is measured.
Note : in order to reduce the test duration, a higher vapour fill rate can be requested
by manufacturer.
Each canister-loading step shall be preceded by canister purging with a minimum of
300 canister bed volume exchanges between 15 to 25 standard litres per minutes
(DIN 1343, standard conditions).
If higher number of canister bed volumes and standard litres per minute are used, the
numbers shall be reported in the test report.

14. Canister ageing procedure : ACEA views (7)
Option B : ageing over 300 cycles
2. Determination of aged Butane Working Capacity (BWC)
The canister must be loaded to 2 g breakthrough , with a 50/50 mixture of butane/nitrogen, at a rate of 15 g butane per hour.
Each canister-loading step shall be preceded by canister purging with a minimum of 300 canister bed volume exchanges between 15 to 25 standard litres per minutes (DIN 1343, standard conditions).
If higher number of canister bed volumes and standard litres per minute are used, the numbers shall be reported in the test report.
Run at least 10 cycles of loading/purging
The aged BWC is the average mass of the two last cycle loads to the breakthrough.
The aged BWC must be recorded in the test report.