Pressure Gain Combustion Technology
Working Group
Steering Committee
27 July 2010
Chris Brophy (co-chair)
Fred Schauer (co-chair)
K. Kailasanath
Dan Paxson
Geo Richards
Jeff Cohen
Phil Snyder
John Sordyl
Venkat Tangirala
Agenda
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Outline
Why PGC?
Sample Programs
Background
Charter, Scope & Objectives
Initial Activity Plan
Related Committees
Membership Roster
Working Group Activities
Near-term Goal
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Fuel Consumption
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
Thermal efficiency [-]
0.65
Why PGC?
0.6
0.55
0.5
• 5-15% fuel burn reduction potential for
Brayton
Humphrey
0.45
a real PGC-based hybrid engine
Compressor Polytropic Efficiency = 1.0
Turbine Polytropic Efficiency = 1.0
Combustor Pressure Loss = 0%
Compressor PR 5:5:55
0.4
0.35
• Lower greenhouse gases
Constant Cp, Cv, gamma
LHV=19000 Btu/lbm
0.3
0
10
20
30
40
Compressor Pressure Ratio
50
60
Tangirala et al., 2007-TurboExpo, Montreal
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Why PGC?: Performance Advantage of PGC cycle
Harper, D., DWP-2011, MBDA
Workshop, Bourges, France,
2011
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Sample PGC Research Programs
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Sample PGC Technology Programs
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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.
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Draft
Proposed Charter
The purposes of the Working Group to form the Pressure Gain
Combustion Program Committee (PGC-PC) are:
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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.
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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.
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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
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Initial Activity Plan for 2013
• Provide panel sessions for ASM and JPC
– Moving Forward with new propulsion applications (EC* / nonEC 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
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Related Organizations
Groups:
Technical Committees:
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Propulsion & Energy
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Aerospace Sciences
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Aircraft & Atmospheric Systems
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Aerospace Power Systems
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Engineering & Technology Mgmt
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Propellants & Combustion
Program Committees:
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Aircraft Design
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Energy Opt Aircraft & Equipment
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Gas Turbine Engines
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Green Engineering PC
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Aeroacoustics
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Standing Committees:
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Air Transportation Systems
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Aircraft Design
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Emerging Technologies
Air Breathing Propulsion Systems
Integration
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PGC Technology Working Group Membership Roster
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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
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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
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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)
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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
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Pressure Gain Combustion Technology Working Group Meeting
JPC 2013
• Pressure Gain Combustion Technology Panel session – TBD
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Pressure Gain Combustion Technology Working Group Meeting
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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)
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Discussion Topics
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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)
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Appendix
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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.
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
- Space Architecture 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
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