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

http://www.powerjets.co.uk/images/f-16-afterburner.jpg

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 N2 shield

Validate method Simple hydrocarbon fuels

Heptane modeling: more complex

Counterflow Diffusion Flat Flame Burner

Sampling Methods

Quartz probeO.D.: 3.5 mm

Silicon tubeO.D.: 350 microns

Flames

Quartz probe

Silicon tube

Methane Heptane

Simulation Chemkin

OPPDIF Chemistry model ref. Brezinsky shock tube

lab

OPPDIF user manual

CH4 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 # 0755115 US Air Force Stephen Gardner, UIC Paolo Berta, PhD UIC 2005 Prof. Takoudis and Prof. Jursich, UIC REU

2010