COMPREHENSIVE JP8 MECHANISM FOR VITIATED FLOWS Kelsey Hall, University of Pennsylvania REU Novel Advanced Materials 2010.

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Presentation transcript:

COMPREHENSIVE JP8 MECHANISM FOR VITIATED FLOWS Kelsey Hall, University of Pennsylvania REU Novel Advanced Materials 2010

Purpose of research  Evaluate efficiency, combustion characteristics of commercial fuels  Energy Conservation  Environmental Concerns  JP8: Jet Propellant  Liquid hydrocarbon fuel  4 to 16 C

Long Term Objectives  Extend m-Xylene model to include low pressure parameters  Comprehensive chemical kinetic model of JP8 combustion  Conditions of jet engine afterburner

Immediate Objectives  Optimize experimental setup  Isokinetic sampling  N 2 shield  Validate method  Simple hydrocarbon fuels  Heptane modeling: more complex

Counterflow Diffusion Flat Flame Burner

Sampling Methods Quartz probe O.D.: 3.5 mm Silicon tube O.D.: 350 microns

Flames Quartz probeSilicon tube MethaneHeptane

Simulation  Chemkin  OPPDIF  Chemistry model ref. Brezinsky shock tube lab OPPDIF user manual

CH 4 Flame Results Condition CH4 0.4L/min, N2(fuel side) 1.6L/min, O2 0.7L/min, N2 1L/min

Heptane Flame Results N-heptane simulation using OPPSMOKE, mech. provided by Paolo Berta

Acknowledgements  Professor K. Brezinsky, UIC  Xiao Fu, UIC: Mentoring graduate student  National Science Foundation and Department of Defense, EEC-NSF Grant #  US Air Force  Stephen Gardner, UIC  Paolo Berta, PhD UIC 2005  Prof. Takoudis and Prof. Jursich, UIC REU 2010