1. Shock Tube Catalytic Activity Experiments
Jerry Zhang
University of Southern California
Mechanical Engineering

2. Overview What is a shock tube? Adding a catalyst Experiments Results
Conclusions

3. What is a shock tube? A tube! That fires shock waves
Allows for us to study chemical kinetics

4. 4
Shock Tube Layout
Give reference and clean up

5. From “Modern Compressible Flow”, John D
From “Modern Compressible Flow”, John D. Anderson, 3rd Ed, McGraw Hill, 2003

6. From “Modern Compressible Flow”, John D
From “Modern Compressible Flow”, John D. Anderson, 3rd Ed, McGraw Hill, 2003

7. From “Modern Compressible Flow”, John D
From “Modern Compressible Flow”, John D. Anderson, 3rd Ed, McGraw Hill, 2003

8. Shock front 1
Contact surface 2 3 4 5
Reflected shock
Rarefaction fan
Reflected rarefaction
Distance x
Time t
Driver
Driven
Diaphragm
Head
Tail

9. Why catalysts?
Catalyst: a substance that increases the rate of a chemical reaction
Allows reactions to happen under preferred conditions (lower temperature, lower concentration)
Homogeneous vs heterogeneous reactions

10. Shock Tube Layout with Catalyst
1010
Shock Tube Layout with Catalyst
Platinum
Give reference and clean up

11. Experiments Ethane and methane oxidation With and without catalyst
Temperatures: 1000 K – 1500 K
Minimal change

12. Reaction Time (without catalyst)

13. Increased Concentration and Catalysts

14. Methane Oxidation

15. Future Work Perform Further Analysis on Platinum Study Other CatalystsRh Pd

16. Acknowledgements Acknowledgements, remove heading
1616
Acknowledgements
National Science Foundation
EEC-NSF Grant #
Professor Kenneth Brezinsky – UIC
Aleksandr Fridlyand – Graduate Student, UIC
Robyn Smith – Graduate Student Candidate, CCNY
Miroslaw Liszka – Graduate Student Candidate, UIC
Professor Marco Castaldi – CCNY
Professor Takoudis, Professor Jursich, and everyone in REU
Acknowledgements, remove heading