A Clearer Future Conference 2012
Upgrading City Buses to Reduce
Emissions
Kathye Henderson
Marketing Manager
Eminox
About Eminox
• Eminox was established in 1978
• We employ around 220 people
in 6 countries
• We design and manufacture
exhaust and emission control
systems for heavy duty diesel
engines
• We have supplied approx.
70,000 emission control systems
to date
• Our systems are used across
Europe and further afield for
Air Quality clean up programmes
City Pollution
• Particulate Matter (PM) and Nitrogen
Oxides (NOx) are damaging to health
and the environment
• Many cities across Europe are failing
to meet legal limits for PM and NO2
• There is no safe limit for exposure to
PM (World Health Organisation)
• The link between black carbon (PM)
and global warming is now
internationally recognised
Retrofit
• New vehicles are now manufactured
with technology that reduces their
emissions of PM and NOx
• There are many older buses still in
service – reducing pollution from
these buses can have a major impact
• These can be retrofitted with
emissions reduction systems at a
fraction of the cost of new buses
• With SCRT technology 15 buses can
be upgraded to Euro V for the cost of
1 new bus
SCRT ® Retrofit
Eminox SCRT has been used in
Europe’s largest retrofit programmes
•
Belgium - 247 buses upgraded for
bus operator DeLijn
•
Spain – More than 400 buses
upgraded in Barcelona
•
Sweden – around 300 systems fitted
to meet local traffic emissions
requirements for PM and NOx
•
Edinburgh - 43 Lothian buses
upgraded
•
Oxford – 26 systems fitted
SCRT® System
• Combines two technologies:
CRT® (Continuously Regenerating Trap)
SCR (Selective Catalytic Reduction)
• Same technology as used for Euro V,
EEV and Euro VI
• Advanced emissions technology reduces
• particulate matter
• nitrogen oxides
• hydrocarbons
• carbon monoxide
SCRT® System
Filter
SCR Catalyst
Catalyst:
Clean Up Catalyst
SCRT® System
• Vehicles as old as Euro II can be
upgraded to the latest Euro V
emissions standards
• This requires
71% reduction in NOx
86% reduction in PM
• In independent tests the Eminox
SCRT achieved equivalent
reductions
Real World NOx Reduction
Real World NOx Reduction
Retrofit is specifically calibrated for urban conditions with
proven real world NOx reduction
DeLijn Belgium
•
DeLijn public transport operator
for Flanders region
•
Trial of SCRT technology Nov
2006
•
Consistent NOx reduction 75 –
80%
•
246 buses retrofitted including
city buses in Antwerp and
Limburg
DeLijn Belgium
Graph Showing Mass of NOx removed by Eminox SCRT
System
300
De-Lijn Total Removed (kg)
200
150
100
50
Expected NOx reduction 75 tonnes/annum from 246 buses
D at e
13/09/07
13/08/07
13/07/07
13/06/07
13/05/07
13/04/07
13/03/07
13/02/07
13/01/07
13/12/06
0
13/11/06
Recorded NOx Removed (Kg)
250
TMB Barcelona
•
Transports Metropolitans de Barcelona
(TMB) the major bus provider in
Barcelona
•
Combination of Euro II and III buses
•
Upgraded to Euro V emissions levels
•
363 buses retrofitted including low floor
city buses
•
Further 66 BaixBus vehicles upgraded
•
Required ultra-compact system
configuration
Da te
14
/09
/20
10
12
/09
/20
10
10
/09
/20
10
08
/09
/20
10
06
/09
/20
10
04
/09
/20
10
02
/09
/20
10
31
/08
/20
10
29
/08
/20
10
27
/08
/20
10
25
/08
/20
10
Recorded NOx Removed (Kg)
TMB Barcelona
60
50
40
30
20
10
Expected NOx reduction 260 tonnes/annum from 363 buses
0
Lothian Buses
•
Trail on Euro II Dennis Dart
•
43 SCRT systems retrofitted to
variety of Euro II & III Buses
•
Volvo and Dennis Dart
•
Taking them all to today’s
emissions standards (Euro V)
•
Branded ‘auld but not reekie’
Lothian Buses
Graph Showing Mass of NOx removed by Eminox SCRT
System
45
Lothian Total Removed (kg)
35
30
25
20
15
10
5
Expected NOx reduction 12 tonnes/annum from 43 buses
0
08
/0
9/
2
12 009
/0
9/
2
16 009
/0
9/
2
20 009
/0
9/
2
24 009
/0
9/
2
28 009
/0
9/
2
02 009
/1
0/
2
06 009
/1
0/
2
10 009
/1
0/
2
14 009
/1
0/
2
18 009
/1
0/
2
22 009
/1
0/
2
26 009
/1
0/
20
09
Recorded NOx Removed (Kg)
40
D at e
SCRT® Developments
•
New SCRT system used for pilot project
•
New catalysts and software
•
Test results from Dennis Dart
•
88% NOx Reduction
•
50% NO2 Reduction
•
On urban operating cycle
•
Up to 1000 buses will be upgraded
Summary
•
Retrofit of SCRT Systems is a cost
effective route to upgrading vehicles:
- Euro II to Euro IV
- Euro III to Euro V and EEV
•
Upgrade 15 buses for the cost of 1
new bus
•
Tailored for urban driving conditions –
delivering reliable NOx reduction on
city buses
•
Proven in independent tests and real
world application