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Microsoft PowerPoint - PMP GRPE June 05 -JRC-finalWorking paper No. GRPE-PMP-15-2 15th PMP working meeting
Geneva 31st May 2005
P. Dilara, J. Andersson
Inter-laboratory Correlation Exercise Summary
– Light Duty prioritised, Heavy Duty coming up – Commenced late summer 2004 – 9 labs participating (11 repetitions) – Project managed by DG JRC (Ispra, Italy) – Golden Engineer funded by DfT (UK) – Foreseen end by Winter 2005
Hubert
Working paper No. GRPE-PMP-15-2 (15th PMP informal meeting, Geneva, 31 May 2005)
2
• Repeated measurements at several laboratories (with JRC bookends)
• Travelling ‘Golden Engineer’ + two of JRC staff to ensure best and reproducible testing practice
• Very low PM ‘Golden Vehicle’ at all labs Repeatability • Test ‘Golden Measurement System’ for particle numbers and
mass • Test of other vehicles • Test of alternative systems for particle numbers
Set-up
• Revised timetable • Vehicles tested • Alternative systems tested • Mass results • Number results • Regeneration effects • Preliminary conclusions
Outline
3
Revised Timetable (PART A)
June- Transfer to JapanINTERIM REPORT
Calibration of Golden Measurement System (during transfer of car to Japan)
AEA Technology, UK
6
5
1-8 February 05Ricardo Consulting Engineers UK
3
29 November-3 Dec 04AVL MTC Sweden
2
1
Revised Timetable (PART B)
Week 41-42 or 45-46UTAC France
10
September 05 ?National Motor Vehicle Emission Research Laboratory, Korea
8
GRPE- PMP Group meeting, 31 May 05
• PEGEUOT 407 HDi FAP 2000 cc (in all labs) • BMW 525d DPF equipped, 2500 cc
• Audi A2, TDi, EURO-4, non-DPF, 1500 cc • Honda Accord i-CTDi, EURO-4, non-DPF, 2200 cc • VW, GOLF TDi, non-DPF, 1800 cc
• Mitsubishi, Carisma, GDI, 1800 cc • VW, GOLF FSI, 1600 cc
• FIAT, Idea, MPI, EURO-4, 1400cc
Vehicles tested
Mass systems tested
• Lab modified systems with heating tapes and mantles (at 4 labs) – Residence time calculated to be according to guidebook – Temperatures recorded – Single filter for all NEDC for DPF equipped vehicles
• HORIBA HFU-4770 (Heated Particulate Filter Module) (at 1 lab)
5
Alternative number systems tested
• Lab dilutor-TSI CPC 3010 lab modified (1 lab) • DEKATI modified-GRIMM modified CPC 5.403 (3 labs) • DEKATI modified -TSI CPC 3010 lab modified (1 lab) • HORIBA Solid particle counting system (to be tested)
• No results will be shown from the alternative systems today.
GRPE- PMP Group meeting, 31 May 05
6
• Revised timetable • Vehicles tested • Alternative systems tested • Mass results • Number results • Regeneration effects • Preliminary conclusions
Outline
Particulate Mass Emissions (mg/km) All participating labs - Golden Vehicle-Golden System
0.407
Ma ss
em iss
io ns
(m g/
All Vehicles Tested
0
5
10
15
20
25
30
35
Au-Vehicle DPF-2 MPI GDI 2 GDI 1 non-DPF#1 non-DPF#2 non-DPF#3
Ma ss
em iss
io ns
(m g/
• Revised timetable • Vehicles tested • Alternative systems tested • Mass results • Number results • Regeneration effects • Preliminary conclusions
Outline
8
Typical trace Pnumber Test 15-11#1
1.0E+00
1.0E+01
1.0E+02
1.0E+03
1.0E+04
0 200 400 600 800 1000 1200 1400 Time (s)
#/ cm
3
0
20
40
60
80
100
120
140
Particle Numbers during NEDC (#/km) All tests (regeneration excluded) GOLDEN VEHICLE
0.0E+00
2.0E+10
4.0E+10
6.0E+10
8.0E+10
1.0E+11
1.2E+11
1.4E+11
1.6E+11
Pa rti
cle em
iss io
Particle Numbers during NEDC tests before and after regeneration (#/km)
Golden Vehicle
0.0E+00
2.0E+10
4.0E+10
6.0E+10
8.0E+10
1.0E+11
1.2E+11
1.4E+11
1.6E+11
1.8E+11
2.0E+11
Pa rt
ic le
e m
is si
Preconditioning
0
500
1000
1500
2000
2500
3000
#/ cm
Regeneration during Preconditioning Pnumber Test 20-05 Precondition Test2 (120 Kph - 20´)
0.0E+00
1.0E+04
2.0E+04
3.0E+04
4.0E+04
5.0E+04
6.0E+04
#/ cm
GRPE- PMP Group meeting, 31 May 05
Regeneration at 140km/h Pnumber Test 13-05 Regeneration Test (140 Kph - 20´)
0
10000
20000
30000
40000
#/ cm
Particle Numbers during NEDC (#/km) All Vehicle Technologies
4.15E+10
1.07643E+11
Au-Vehicle Alternative DPF
MPI GDI 1 GDI 2 non-DPF#1 non-DPF#2 non-DPF#3
Pa rti
cle em
iss io
GRPE- PMP Group meeting, 31 May 05
Comparison between mass and number (EURO 4)
With PMP protocol number measurements are less variable than mass for EURO-4 non-DPF Diesel cars
non- DPF#1
non- DPF#2
non- DPF#3
Average %COV
Number 5.69E+13 5.42E+13 5.53E+13 STD 1.91E+12 1.13E+12 3.10E+12 %COV 3.36 2.08 5.62 3.69 Mass 29.943 18.666 17.69478 STD 3.143 1.211 1.925971 %COV 10.50 6.49 10.88 9.29
% COV for non-DPF Diesel EURO4 Vehicles
0.00
2.00
4.00
6.00
8.00
10.00
12.00
Number%COV Mass %COV
Regulated emissions Regulated Gaseous Emissions and Fuel Consumption
Golden Vehicle
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
HC x 10 CO x 10 CO2 / 1000 NOx HC + NOx Consumption (l/100 Km)
Em iss
io ns
(g /K
GRPE- PMP Group meeting, 31 May 05
• Revised timetable • Vehicles tested • Alternative systems tested • Mass results • Number results • Regeneration effects • Preliminary conclusions
Outline
13
Preliminary Conclusions • Mass method sufficiently sensitive to permit repeatable
measurements at well below 2.5 mg/km level – Some questions remain regarding retention of volatiles by filter media in
absence of carbon • Number method ~20 times more sensitive than mass
– Emissions of ~1011/km achievable with DPF Diesels, similar as modern MPI – GDIs between 1012 and 1013/km – Conventional Diesels ~ 500 times higher (5*1013/km) than DPF equipped
ones • Number method less variable than mass for EURO-4 non-DPF
diesel cars
Preliminary Conclusions-2 • Mass and number measurement equipment presented no
significant functional or maintenance challenges during the programme
• Both mass and number sufficiently sensitive to discriminate between a DPF equipped Diesel and non-DPF equipped Diesel – Number metric provides best sensitivity and avoids uncertainties
with volatile components • Current technology GDIs falls between DPF Diesel and
non-DPF Diesel both in mass and number
14
GRPE- PMP Group meeting, 31 May 05
Next Steps – 2nd part of testing (NTSEL, NMVERL, UTAC, SHELL, JRC) – Analyse all data and prepare final reports for PMP WG – Further revision of draft regulatory documents
• Fine tuning • Integration of necessary validation and calibration
procedures for number measurement equipment – Submission of drafts to EC in Brussels as protocols in
regulation format for consideration as part of Euro V
– Heavy Duty Inter-lab exercise
Thank you for your attention!
For further details or questions, please contact The PMP Interlab Manager:
Penny Dilara JRC, TP 441,
Ispra, (VA) 21020, Italy Tel:+39-0332-789207
Fax: +39-0332-786328 E-mail: [email protected]