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TECHNICAL PAPERS

Thermographic Inspection of Rail-Car Thermal Insulation

[+] Author and Article Information
A. M. Birk, Mark. H. Cunningham

Mechanical Engineering, Queen’s University, Kingston, Ontario, K7K 3N6, Canada

J. Pressure Vessel Technol 122(4), 494-501 (Jul 06, 2000) (8 pages) doi:10.1115/1.1310365 History: Received February 15, 2000; Revised July 06, 2000
Copyright © 2000 by ASME
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References

Figures

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Test apparatus modeling tank-car
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Insulation test pattern
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Thermal images of test pattern, Ta−Tl=11°C—(a) enhanced thermal image from Tl NightSight, (b) thermal image from FSI prism
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Wet Insulation test, wet center strip, Ta−Tl=11°C. Note: horizontal bands due to optics in the imager.
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Effect of viewing angle on spatial resolution
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Thermal Images from field trials; dark areas indicate insulation deficiencies (Tl Palm IR)—(a) aluminum tank—IR reflection obscures IR emission; (b) tank-car insulation deficiencies; (c) tank-car with insulation deficiencies; (d) tank-car with no insulation deficiencies
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Tank-car recently loaded with warm lading, light areas show insulation deficiencies (Tl Palm IR)

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