Proceedings - SCO2 Oxy-Combustion Working Group
Presentation
- Dr. Jacob Delimont – Southwest Research Institute (SwRI)
- Title: “High Inlet Temperature Combustor for Direct Fired Supercritical Oxy-Combustion”
- Presented an update on work on this project to design, build, and test an oxy-combustor
- NETL-funded project - Awarded Phase I in 2014, Phase II in 2016
- Mark Freeman is Federal Project Manager
- Presentation covered:
- Project objectives
- Results / Conclusions from testing at Thar Energy
- Combustor design
- Test loop design
- Future work
- Highlights:
- 1 MW-scale; 200 bar; 1600C max temperature
- Combustor conceptual design was shared
- Partially pre-mixed swirl stabilized combustor
- Combustor planned for testing in reconfigured SunShot loop at SwRI
- Mechanical design, aerothermal design and results of simulations presented
Q&A
Q&A followed the presentation, with some highlights below of Jacob’s responses to the questions:
- Georgia Tech is a project partner, for optical diagnostics. Plan to build optical access to the combustor.
- Will provide gas sampling along the length of the combustor.
- Can also sample downstream of the combustor.
- Pressure in test loop set by control valve.
- Presented multiple possible combustor concepts.
- Will be using the partially pre-mixed swirl stabilized combustor concept going forward.
- Materials challenges associated with the sCO2 fluid.
- Vendors for valves, instrumentations, etc.
- Proper seals that can handle sCO2 at these conditions.
General Discussion
- Asked for any feedback on the meeting process.
- Positive feedback – no recommendations for changes to format
- Meetings will continue on a bi-monthly basis via web-ex/phone platform.
- 6th International Symposium on SCO2 Power Cycles coming up in Pittsburgh on March 27-29
- Opportunity to discuss oxy-combustion topic further
- Sessions in agenda on oxy-combustion
- Since there is already a session devoted to oxy-combustion planned for the symposium it was determined to be unnecessary to organize a separate group meeting at the event.
- TurboExpo coming up in Oslo, Norway
- Seth Lawson is in discussions with Robin Ames and Eric Clementoni to explore options for organizing a panel to discuss the path forward and the industry perspective on oxy-combustion.
Planning Discussion for Future Meetings
Discussion on planning future meetings:
- Next meeting will be April 24, 2018 from 1pm-3pm EDT
- Includes 2 presentations
- Dr. Subith Vasu – University of Central Florida
- Dr. Wenting Sun – Georgia Tech
- Each will present on their NETL-funded University Turbine Systems Research (UTSR) projects.
- If anyone is interested in volunteering to present at future working group meetings, please email seth.lawson@netl.doe.gov