Fire safety is one of the most important factors to consider when designing a car park. In this webinar, we explain how CFD simulations can help engineers to virtually test and optimize HVAC systems and fans for smoke control in case of fire. You can check the official webinar page here: http://ow.ly/l6dm30oxbo1

1. SMOKE CONTROL IN A CAR PARK
WITH CLOUD-BASED CFD
Milad Mafi

2. Milad Mafi
Product Marketing Manager
With more than 10 years of professional
experience with engineering simulation and
motorsport aerodynamics, Milad manages,
grows and supports relationships with key
business and educational partners and
presents webinars covering CFD and FEA.

3. 1. Benefits of Using Simulation
2. Introduction to SimScale
3. Smoke Control and CFD
4. Live Demonstration
5. Results Summary
6. Q & A

5. WHY SHOULD I CARE ABOUT SIMULATION?
Depending on focus:
● Lower cost
● Lower failure risk
● Lower weight
● Increase product lifetime
● Increase “performance”
Make better design
decisions earlier.
Depending on role:
● Designer: Rough early
estimation on product strength
and durability on multiple design
variants
● Engineer: Digitally test/validate
the design before expensive
physical testing

9. ACCELERATE YOUR
DESIGN PROCESS
Easily test performance, optimize
durability or improve design efficiency
with cloud-based simulation.

10. ALL-IN-ONE
Structural mechanics,
fluid dynamics, and
thermodynamics.
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and training.
COLLABORATION
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benefit from public projects,
and share know-how.
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on any device thanks
to cloud technology.
COST-EFFICIENT
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an upfront investment.
SECURE
High security with
government-approved
Advanced Encryption
Standard (AES).

12. SMOKE CONTROL IN A CAR PARK WITH CLOUD-BASED CFD
How can you optimize HVAC
SYSTEMS for SMOKE CONTROL in
CAR PARKS with CFD?

13. ● Both day-to-day pollution and emergency smoke
need to be safely and effectively ventilated.
● To keep escape routes clear and allow fire fighting
crews easier access to the fire.
● Toxic gases are hazardous for occupants.
THE IMPORTANCE OF SMOKE CONTROL IN CAR PARKS

14. WHY CFD FOR SMOKE CONTROL?
Design Faster
● Investigate a variety of scenarios in parallel
● Avoid time-intense experiments
Design Better
● Enable ‘performance-based’ design, not prescriptive
● Investigate many scenarios virtually to gain confidence
● Risk assessment & escape route planning
Design more cost-efficiently
● Avoid over-designing/spending too much on
unnecessary components
● Replace expensive experimental investigations

15. Fresh Air Supply
3x 18,000 CMH
Fresh Air Supply
18,000 CMH
Ramp
Open to environment
Exhaust Openings
3x 28,800 CMH
Smoke Production
Car fire location (2x5m volumetric scalar source)
BASE DESIGN (SCENARIO 1)

16. Design Challenges:
● Acceptable smoke
concentration levels
● Jet fans sizing and
placement
Fresh Air Supply
3x 18,000 CMH
Fresh Air Supply
18,000 CMH
Ramp
Open to
environment
Exhaust
Openings
3x 28,800 CMH
Smoke Production
Car fire location (2x5m
volumetric scalar source)
BASE DESIGN (SCENARIO 1)

17. 6x Jet Fans
Generating 10m/s air velocity
OPTIMIZED DESIGN — WITH JET FANS (SCENARIO 2)
Image source:
http://advancedsmoke.blogspot.com/2011/10/maximisin
g-efficiency-of-car-park.html

19. DESIGN 1 — AIRFLOW VELOCITY

20. DESIGN 1 — SMOKE CONCENTRATION
Large High Smoke
Density Region

21. DESIGN 2 — AIRFLOW VELOCITY

22. DESIGN 2 — AIRFLOW VELOCITY

23. DESIGN 2 — SMOKE CONCENTRATION

24. DESIGN COMPARISON — SMOKE CONCENTRATION
Design 1 (no Jet Fans):
Max. Smoke Concentration:
1.5 units
Design 2 (with Jet Fans):
Max. Smoke Concentration:
0.9 units

25. DESIGN COMPARISON— SMOKE CONCENTRATION
-40 %

26. CAD IMPORT
Upload your CAD model
or import it from other cloud
services into SimScale.
SIMULATION SETUP
All steps to define and run
a simulation are done
within SimScale.
DESIGN DECISION
Use the simulation insights
to make better and faster
design decisions.
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