Pressure Gain Combustion Technology Working Group

27 July 2010

Steering Committee Chris Brophy (co-chair) Fred Schauer (co-chair) K. Kailasanath Dan Paxson Geo Richards Jeff Cohen Phil Snyder John Sordyl Venkat Tangirala

Agenda

• • • • • • • • • • Outline Why PGC?

Sample Programs Background Charter, Scope & Objectives Initial Activity Plan Related Committees Membership Roster Working Group Activities Near-term Goal 2

Why PGC?:

Market Drivers - Aviation & Powergen

• Fuel costs 15% to 25% of airlines’ costs • Flattening technology curves •

There is a significant value for technologies that bring 5%+ efficiency improvements

Source: “Aviation and the Global Atmosphere”, Intergovernmental Panel on Climatic Change, 1999.

0.7

0.65

0.6

0.55

0.5

Brayton Humphrey

0.45

0.4

Compressor Polytropic Efficiency = 1.0

Turbine Polytropic Efficiency = 1.0

Combustor Pressure Loss = 0% Compressor PR 5:5:55

0.35

Constant Cp, Cv, gamma LHV=19000 Btu/lbm

0.3

0 10 20 30 40 Compressor Pressure Ratio 50

Tangirala et al., 2007-TurboExpo, Montreal

60

• Why PGC?

5-15% fuel burn reduction potential for a real PGC-based hybrid engine

• Lower greenhouse gases 3

Why PGC?:

Performance Advantage of PGC cycle

Harper, D., DWP-2011, MBDA Workshop, Bourges, France, 2011 4

Sample PGC Research Programs

5

Sample PGC Technology Programs

6

Background…Why now?

• Flattening efficiency curves for Brayton cycle based engines necessitates new modes of combustion to lower sfc.

• After a decade of research and technology development, pressure gain combustion looks promising for both propulsion and energy applications.

• Individual facets of pressure gain combustion technologies represented sporadically in the technical committees, but there is no central focus & systems thinking approach.

• A PC, with its inherent systems point of view, flexibility of approach, and access to a wide range of expertise, offers AIAA such a focus that would broadly benefit the membership.

• Other international entities, mostly propulsion organizations are ramping up their involvement in “pressure gain combustion” activities. AIAA needs a clearly defined focal point & should work to become a leader in this growing domain.

7

Draft

Proposed Charter

The purposes of the Working Group to form the Pressure Gain Combustion Program Committee (PGC-PC) are: • to function as the AIAA focal point for all “pressure gain combustion” programs and technologies, and will work integrally across the technical committees to ensure all program areas are represented and addressed, • to help develop propulsion community assessment of pressure gain combustion technologies for various applications by organizing special sessions, workshops and panel discussions, and • to help develop a holistic, systems level approach to propulsion systems for various applications and provide feasibility assessment to policy makers, gov’t agencies and OEMs.

8

Scope

• • • • • • • Coordinate and focus PGC activities across the technical committees to develop / support conferences, workshops, position papers, panel sessions and technical sessions Support AIAA public policy forums / initiatives and provide a liaison to the committee Characterize the critical challenges for PGC technologies Identify rapidly advancing & emerging technologies that support propulsion systems using PGC Identify champions for PGC initiatives within AIAA Co-sponsor relevant conferences and events with other professional societies Serve as the focal point and interface between AIAA and the growing PGC community, including DARPA, DOE, ONR, AFOSR, and complementary professional societies.

9

Objectives

• Help shape the vision, direction and policy for future PGC based propulsion systems • • • • • • Provide a forum in which industry, government, and academia can discuss solutions & approaches in an informal, non-competitive environment. Assess, advocate and promote feasible systems-level approach (application dependent) to developing propulsion systems based on PGC.

Identify markets and opportunities for funding to develop promising technologies through its members and liaisons, while serving to connect funded programs, market needs, and existing technologies Promote and support conferences, workshops, sessions and technical publications in the area of PGC.

Provide efficient knowledge transfer (education) to the AIAA membership Ensure all relevant aspects of PGC technologies are represented in the technical committees and conferences 10

Initial Activity Plan for 2013

• Provide panel sessions for ASM and JPC – Moving Forward with new propulsion applications (EC* / non EC sessions?) • • • • • Provide an annual article for Aerospace America Establish quarterly meeting rhythm…Jan (ASM), July (JPC) Recruit members from technical committees Identify liaison to Public Policy committee Pursue coordination opportunities with other professional societies • Develop PGC Technology Working Group portal on AIAA website * Export Controlled 11

Related Organizations

• • • • Groups: Propulsion & Energy Aerospace Sciences Aircraft & Atmospheric Systems Engineering & Technology Mgmt • • • Program Committees: Energy Opt Aircraft & Equipment Green Engineering PC Standing Committees: • Emerging Technologies • • • • • • • • Technical Committees: Air Breathing Propulsion Systems Integration Aerospace Power Systems Propellants & Combustion Aircraft Design Gas Turbine Engines Aeroacoustics Air Transportation Systems Aircraft Design 12

PGC Technology Working Group Membership Roster

• • • • • • • • • • • • • • C. Brophy (co-chair) Fred Schauer (co-chair) Dan Paxson Geo Richards K. Kailasanath Venkat Tangirala Jeff Cohen Phil Synder John Sordyl Ashwani Gupta Tom Bussing Artie Mabbett Joe Doychak Gabriel Roy • • • • • • • • • • • • • • • David Hopper Donald Ferguson Doug Talley Keith McManus Gerald Welch Ryan Strakey Razi Nalim Dora Musiliak Doug Shafer Narendra Joshi Tom Kaemming Adam Holly Chiping Li Ryan Battelle Pete Jardine 13

History of the PGC Technology Working Group Propellants and Comb TC (ASM2012) Air Breathing Propulsion 3 TCs (muted ASM2012) PGC Technology Working Group (JPC-2012) PGC Technology Working Group (JPC-2012) 14

Working Group Activities

• ASM 2012 Pressure Gain Combustion Technology Working Group proposed • JPC 2012 Pressure Gain Combustion Technology Working Group Kickoff • ASM 2013 Pressure Gain Combustion Technology Panel session – TBD • Pressure Gain Combustion Technology Working Group Meeting • JPC 2013 Pressure Gain Combustion Technology Panel session – TBD • Pressure Gain Combustion Technology Working Group Meeting 15

Near Term Goal of the Working Group

• Approval for transition to a program committee, to be known as the Pressure Gain Combustion Program Committee (PGC-PC) 16

Discussion Topics

• • • • • • Charter / Mission Statement Need International members Ongoing PGC international programs Near term Working Group activities Long term Working Group activities Sponsorship of related TCs and PCs (see slide#: 19) 17

Appendix

18

Sample Technical Committee Responses

The interests of the Space Architecture Technical Committee (SATC) include sustainable development, both in space and on Earth. We promote a two-way transfer of building technology and design practice between Earth and space to improve habitat efficiency and reduce environmental impact.

We welcome the establishment of a Green Engineering Program Committee.

- Space Architecture Technical Committee I am also very keen to work with you and the Green Engineering Work Group. I would like to see a close alliance between the Group and the GTE TC to ensure we leverage our common interests and minimize duplication. Clearly we have much in common, so lets; set up a liaison and think about collabaration on JPC session etc. - Gas Turbine Engines Technical Committee See www.dasconline .org…We welcome any support for this conference you can muster -Digital Avionics Technical Committee The technologies that are worked under ISRU have many applications to green engineering, as we are basically all about the reduce-reuse-recycle circle. Especially with a potential shift of focus to Mars, with its CO2 atmosphere, we have many potential terrestrial applications…I think there are several members of my TC that may be interested in your new PC... -Space Resources Technical Committee Congrats and welcome aboard! I can't think of any Space Logistics TC suggestions just now, but we will be pleased to work with you. There are surely many areas of overlap and opportunities for collaboration between us.

- Space Logistics Technical Committee 19