CMCL Innovations provides modeling software and consulting services focused on predictive combustion modeling. Their modeling philosophy uses integrated data, application, and optimization models. Their software suite, SRM, can model combustion, emissions, fuels and fuel reformation, injection systems, and in-cylinder processes through integrated fluid dynamics and chemistry models. Customers choose SRM for its ability to predict emissions and combustion trends, model critical in-homogeneities faster than CFD, seamlessly couple with third party tools, and help design optimizations. CMCL provides examples of SRM helping optimize diesel engine design for emissions and efficiency.

1. we are cmcl innovations

2. about us
Models represent our state-of-the-art “knowledge” of the universe
• Engineering software model
data models
• Technical consulting
application
models
• Collaborative R&D
• Training and teaching optimisation
Our modelling philosophy

3. srm suite... realise deeper insight faster

4. typical challenges for our customers
Combustion Emissions
Knock, misfire, ignition, CO, uHCs, Nox,
low temperature soot particle dynamics
(including number density
combustion and composition)
Fuels Modern techniques
Alternative fuels Boosting,
Fuel development Exhaust gas residuals,
Fuel reformation Multiple direct injection
In-cylinder processes are far more than just fluid dynamics
....chemistry must also be considered

5. why our customers choose srm suite
Benefits
– Emissions
– Predictive combustion
– Critical in-homogeneities (vs. 1D)
– Amenable time scales (vs. CFD)
– Opportunity for design
optimisations
– Seamless coupling with 3rd party
industry standard tools
– Our tools make it simple

6. srm suite...realise deeper insight faster
Some of our success stories
Design optimisation – Indian OEM, minimising emissions,
maximising efficiency
Fuel development – Major Oil Company, detailed fuel models for
future engine operating modes
Piston design – Leading truck manufacturer, minimising emissions
through intelligent piston bowl design
Transients – International OEM, optimising strategies for transient
operating mode changes

7. examples
CIDI Emissions
Advanced combustion

8. CIDI

9. early DI diesel engine: injection timing sweep
9
9
8
Experiment 8 SOI=-53 CAD ATDC
pt1 SOI=-53 ATDC SOI=-46 CAD ATDC
7 7
In-cylinder pressure (Mpa)
pt2 SOI=-46 ATDC SOI=-41 CAD ATDC
In-cylinder pressure (Mpa)
6 pt3 SOI=-41 ATDC 6 SOI=-38 CAD ATDC
pt4 SOI=-38 ATDC
Injections advance
5 5
4 4
3 3
2 2
1 1
0
0
-100 -80 -60 -40 -20 0 20 40 60 80 100 -80 -60 -40 -20 0 20 40 60 80
CAD CAD

10. mixture preparation insight

11. advanced combustion

12. CAI (gasoline HCCI)
Effect of charge stratification
on max. pressure rise rates
Local history of temperature and
composition vs global averages
Int. J. Eng. Res., Mar. 2007
Int. J. Engine Res., 8, 41-50, 2007

13. optimal dual injection PCCI (diesel HCCI)
JSAE 20077195
JSAE 20077195

14. HCCI operating window
Indicated thermal efficiency (%)
1800
cycle 55
Partial Burn cycle 56
1600 cycle 57
cycle 58
cycle 59
cycle 60
cycle 61
1400 cycle 62
T (K)
cycle 63
cycle 64
cycle 65
1200
1000
Misfire
Knock 800
-40 -30 -20 -10 0 10 20 30 40
CAD
SAE Paper 2005-01-0161

15. emissions

16. uHCs and NOx
Euro V, NOx = 2000 mg/kWh
Multiple steady state operating points
Euro V = 0.46 g/kWh
Scania turbocharged truck engine

17. Influence of fuel blending on CO emissions

18. 3D soot aggregates
• Sub Particles: 3172 • Shape Descriptor: 0.768
• No. Carbon atoms: 4.967x106 • Radius of Gyration: 44.384 nm
• Surface Area: 2.345x10-10 cm2 • Age: 0.0917 s

19. aggregate size distribution
Experiment Simulation

20. srm suite demonstration

21. srm suite....realise deeper insight faster
Now you can use
next-generation engine modelling tools
to solve your technical problems.
Please talk to us about your requirements...
srm suite v6.1 available now.