Overview of Park Burner Used in Insulation

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Overview of Park Burner Used in
Insulation Burnthrough Resistance Test
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Typical Test Burner and Sample Holder
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Typical Test Burner and Sample Holder
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Development and Refinement of Burnthrough Test
Method
Examples of how and why test apparatus was
modified over the years
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Data Collection Procedure is Critical
Date 11/24/99
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Data Collection Procedure is Critical
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Intake Airbox Standardization
Purpose Manufacture standard intake airbox
devices for all participating burnthrough test
labs to house the Omega HH-30A air velocity meter.
Standardizing the methodology of measuring intake
air velocity could minimize the potential for
interlab data fluctuations.
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Irregular Shape of Park Burner Intake Area
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Intake Airbox Mass Production
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Aluminum Intake Airbox
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Intake Airbox Holding Air Velocity Meter
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Standardized Air Intake System
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Development and Refinement of Burnthrough Test
Method
Configuration of Internal Components
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Current Specification for Nozzle Depth
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Current Specification for Stator Position
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Development and Refinement of Burnthrough Test
Method
Impact of Fuel Nozzle Type on Test Results
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Boeing PL Nozzle
FAA PL Nozzle
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Boeing PL Nozzle
FAA PL Nozzle
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Boeing PL Nozzle
FAA PL Nozzle
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Discussion with Monarch
Early nozzles inscribed with F-80 (generic
drawing description)
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Discussion with Monarch
Late 1980s, change from F-80 to MTD-92
(material tolerance description)
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Discussion with Monarch
Early 1990s no inscription, but rather a
production number (for example 9 7)
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Nozzle Rotation Tests
Old Style
New Style
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Prototype Nozzle Developed by Monarch
Swirl disc copied from original FAA nozzle
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Heat Flux Comparison of Nozzles
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6.5 GPH 80o PL old style F-80
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Evaluation of Monarch 6.5 GPH 80o PL
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Evaluation of Monarch 6.5 GPH 80o PL
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Evaluation of Monarch 6.5 GPH 80o PL
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Evaluation of Monarch 6.5 GPH 80o PL
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Evaluation of Monarch 6.5 GPH 80o PL
1941 1981 1958 1958 1974 1992 1999 Avg 1972
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Development and Refinement of Burnthrough Test
Method
Impact of Internal Stator Diameter on Test Results
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Fiberglass Tape Added to Blade Edge
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RTV Sealant Added to Blade Edge
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Development and Refinement of Burnthrough Test
Method
Impact of Main Housing Type on Test Results
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Flanged vs. Socket Type Housing
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Different Draft Tubes for Each Housing Type
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FAA Burner
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Boeing Burner
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Length Difference
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Possible Simple Modifications to Socket Burner
Objective To develop a simple modification to
the socket burner that would result in equivalent
performance to the flanged burner (i.e.,
reduced exit air velocity while maintaining
specified 2150 ft/min intake velocity).
Methodology Alter the flow of air in the draft
tube using various deflectors, discs, and stators
in order to reduce the output velocity.
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Possible Simple Modifications to Socket Burner
3 1/8 inch disc behind stator
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Possible Simple Modifications to Socket Burner
1 3/8 inch disc behind stator
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Possible Simple Modifications to Socket Burner
Half moon static disc behind stator
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Possible Simple Modifications to Socket Burner
3 7/8 O.D. by 3 ½ I.D. Ring
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1 1/4 inch disc in front of stator
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Socket Burner Testing
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Possible Simple Modifications to Socket Burner
Thin-blade cross
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Possible Simple Modifications to Socket Burner
Thin-blade cross upstream of the existing stator
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Possible Simple Modifications to Socket Burner
Thin-blade cross downstream of the existing stator
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Socket Burner Testing
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Assorted Components Used in Socket Burner
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Current Specification for Stator Position
(Flanged Burner)
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Socket Burner Testing
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Reproduction Stator, Modified at Edges of Blades
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Reproduction Stator, Modified at Edges of Blades
Additional Epoxy
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Socket Burner Testing
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Socket Burner Testing
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Proper Technique for Mounting Insulation
Blankets on Test Frame
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Step 1 Install Left Blanket, Squeeze Onto Former
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Step 2 Install Right Blanket, Clip To Frame
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Step 3 Tuck Blanket Into Corners _at_ Center
Tuck
Tuck
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Step 4 Tuck Blanket Into Corners _at_ Sides, Clip
Tuck
Tuck
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Desired Blanket Installation on Test Frame
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Desired Blanket Installation on Test Frame
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Questions?