Nonintrusive optical measurements of aircraft engine exhaust emissions and comparison with standard intrusive techniques

2000 ◽  
Vol 39 (3) ◽  
pp. 441 ◽  
Author(s):  
Klaus Schäfer ◽  
Jörg Heland ◽  
Dave H. Lister ◽  
Chris W. Wilson ◽  
Roger J. Howes ◽  
...  
Keyword(s):  
Aircraft Engine ◽  
Exhaust Emissions ◽  
Optical Measurements ◽  
Engine Exhaust

Aero-Gasturbine Emission Reduction and Simulation Technology: Philosophy and Approach

2004 ◽  
Author(s):  
Savad A. Shakariyants ◽  
Jos P. van Buijtenen ◽  
Wilfried P. J. Visser
Keyword(s):  
Emission Reduction ◽  
Aircraft Engine ◽  
Exhaust Emissions ◽  
Simulation Technology ◽  
Aircraft Emissions ◽  
Engine Exhaust ◽  
Operational Conditions ◽  
University Of Technology ◽  
Analytical Tools ◽  
Exhaust Gas Emissions

Aircraft engine technology has gained major advances in the past 40–50 years, steadily bringing significant gains in the reduction of exhaust emissions at the source. However, with the projected increase in air traffic, the cumulative amount of aircraft emissions will still increase. This maintains the need for further progress in developing analytical methods to predict the amount and composition of exhaust gases from aircraft engines to better assess the alternatives for reducing emissions and better inform decision-makers, manufacturers and operators. The Research Project “Aero-Gasturbine Emission Reduction and Simulation Technology”, started at the Delft University of Technology in collaboration with the Dutch National Aerospace Laboratory (NLR) and the Netherlands Ministry of Traffic, is aimed to contribute to the efforts to solve the problem. With the limitations, complexity and costs of emission measurements at operational conditions, the ability to predict engine exhaust emissions by means of analytical tools becomes more urgent for minimizing aircraft engine exhaust gas emissions. This paper presents a philosophy and approach to develop such tools.

AEROJET: nonintrusive measurements of aircraft engine exhaust emissions

1997 ◽  
Author(s):  
Klaus Schaefer ◽  
Joerg Heland ◽  
Roger Burrows ◽  
John V. Black ◽  
Marc Bernard ◽  
...  
Keyword(s):  
Aircraft Engine ◽  
Exhaust Emissions ◽  
Engine Exhaust

CRUCIBLE 347

Alloy Digest ◽  
1983 ◽  
Vol 32 (12) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Aircraft Engine ◽  
Heat Treating ◽  
Nickel Steel ◽  
Annealed Condition ◽  
Engine Exhaust ◽  
Cold Worked ◽  
Specialty Metals

Abstract CRUCIBLE F347 is a non-hardenable austenitic chromium-nickel steel that is particularly adaptable for use at temperatures between 800 and 1650 F. It is non-magnetic in the annealed condition but is slightly magnetic in the cold-worked condition. Among its many applications are aircraft-engine exhaust manifolds, boiler shells and high-temperature handling equipment. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-436. Producer or source: Crucible Specialty Metals Division, Colt Industries.

CRUCIBLE 321

Alloy Digest ◽  
1983 ◽  
Vol 32 (5) ◽  
Keyword(s):  
Fracture Toughness ◽  
Aircraft Engine ◽  
Heat Treating ◽  
Nickel Steel ◽  
Annealed Condition ◽  
Engine Exhaust ◽  
Expansion Joints ◽  
Temperature Performance ◽  
Cold Worked ◽  
Specialty Metals

Abstract CRUCIBLE 321 is a non-hardenable austenitic chromium-nickel steel which is particularly adaptable for parts fabricated by welding without postweld annealing for use at temperatures between 800 and 1500 F. This grade is non-magnetic in the annealed condition but is slightly magnetic when cold worked. Among its many applications are aircraft-engine exhaust manifolds, furnace parts and expansion joints. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-426. Producer or source: Crucible Specialty Metals Division, Colt Industries.

scholarly journals Simultaneous Optical Measurements of Axial and Tangential Steady-State Blade Deflections

1999 ◽  
Author(s):  
Anatole P. Kurkov ◽  
Harbans S. Dhadwal
Keyword(s):  
Wind Tunnel Test ◽  
Design Feature ◽  
Aircraft Engine ◽  
Optical Probe ◽  
Two Dimensions ◽  
Optical Measurements ◽  
Axial Position ◽  
Aerodynamic Loading ◽  
Blade Edge ◽  
Alternate Solution

Currently, the majority of fiber-optic blade instrumentation is being designed and manufactured by aircraft-engine companies for their own use. The most commonly employed probe for optical blade deflection measurements is the spot probe. One of its characteristics is that the incident spot on a blade is not fixed relative to the blade, but changes depending on the blade deformation associated with centrifugal and aerodynamic loading. While there are geometrically more complicated optical probe designs in use by different engine companies, this paper offers an alternate solution derived from a probe-mount design feature that allows one to change the probe axial position until the incident spot contacts either a leading or a trailing edge. By tracing the axial position of either blade edge one is essentially extending the deflection measurement to two dimensions, axial and tangential. The blade deflection measurements were obtained during a wind tunnel test of a fan prototype.

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