Browse > Article
http://dx.doi.org/10.7473/EC.2014.49.1.1

Blocking of Fuel Filter in Aircraft by an Accelerator Blooming  

Kim, Ik-Sik (Aero Technology Research Institute, The Republic of Korea Air Force)
Hwang, Young-Ha (Aero Technology Research Institute, The Republic of Korea Air Force)
Sohn, Kyung-Suk (Aero Technology Research Institute, The Republic of Korea Air Force)
Lee, Jung-Hun (Aero Technology Research Institute, The Republic of Korea Air Force)
Sohn, Byung-Hoon (Fuel Laboratory of The Republic of Korea Air Force)
Publication Information
Elastomers and Composites / v.49, no.1, 2014 , pp. 1-12 More about this Journal
Abstract
Blocking of fuel filter in aircraft greatly can affect loss of pilot's life and of the aircraft. The investigation of failures is, thus, of vital importance in preventing incidents in advance. The fuel filter of aircraft plays an important role in filtering various debris from jet fuel. It filters impurities smaller than 10 ${\mu}m$ particles from jet fuel provided with the speed of 1,330 pounds per hour. It must be replaced per 500 h on the basis of operating time. However, even before reaching 500 h, the warning sign lighted on due to blocking of fuel filter. Recently, these similar defects have happened repeatedly. Therefore, in this study, the cause of blocking fuel filter in aircraft was investigated using various analytical techniques such as FT-IR microscopy, FE-SEM/EDS, and total sulfur determinator. Consequently, the blocking material of fuel filter was identified to an accelerator from the integral fuel tank sealant. And a mechanism for the formation of the blocking material of fuel filter by an accelerator blooming phenomenon in fuel tank was suggested.
Keywords
fuel filter; aircraft; blocking; accelerator; blooming; sealant;
Citations & Related Records
연도 인용수 순위
  • Reference
1 I. A. Novakov, A. V. Nistratov, V. I. Frolova, V. V. Klimov, D. V. Pyl'nov, S. Yu Gugina, and E. N. Titova, "Peculiarities of Production of Materials Based on Polysulfide Oligomer-Polymerizable Compound Compositions Cured in the Presence of Manganese Oxide", Polym. Sci. Ser. D, 5, 96 (2012).   DOI
2 B. Zhou, D. He, Y. Quan, and Q. Chen, "The Investigation on the Curing Process of Polysulfide Sealant by in situ Dielectric Analysis", J. Appl. polym. Sci., 126, 1725 (2012).   DOI   ScienceOn
3 M. Abdouss, "The Effect of Epoxy-Polysulfide Copolymer Curing Methods on Mechnical- Dynamic and Morphological Properties", Iran. J. Chem. Chem. Eng., 30, 4 (2011).
4 M. J. Kade, D. J. Burke, and C. J. Hawker, "The Power of Thiol-ene Chemistry", J. Polym. Sci. A: Polym. Chem., 48, 743 (2010).   DOI   ScienceOn
5 G. Odian, "Principles of Polymerization", 3rd ed., John Wiley & Sons, Inc., 1991.
6 A. H. L. R. Nilmini, "Blooms and Bloom like Phenomena", Bull. Rubber Res. Inst. Sri Lanka, 43, 24 (2001).
7 M. C. Billias, "Integral Fuel Tanks", Lockheed-Georgia Company, 9, 4 (1982).
8 S.-S, Choi, "Migration of Antidegradants to the Surface in NR and SBR Vulcanizates", J. Appl. polym. Sci., 65, 117 (1997).   DOI
9 F. Ignatz-Hoover, "Compounding and Testing for Performance", Rubber Technology, ed. by J. S. Dick, 2001.
10 A. M. Usmani, "Chemistry and Technology of Polysulfide Sealants", Polym. Plast. Technol. Eng., 19, 165 (1982).   DOI
11 "Sealing Compound, Temperature-resistant, Integral Fuel Tanks and Fuel Cell Cavities, High Adhesion", SAE AMS-8802C (2011).
12 "Turboprop Gas Turbine Engine", Technical Order 2JTPT6A- 2, Pratt & Whitney Canada (2003).
13 "Oxygen, Aviator's Breathing, Liquid and Gas", MIL-PRF- 27210H (2009).
14 J. G. Speight, "The Sulfurization of Heavy Oils and Residue", Marcel Dekker, New York, 1981.
15 M. J. Grossman, M. K. Lee, R. C. Prince, K. K. Garrett, G. N. George, and I. J. pickering, "Microbial Desulfurization of a Crude Oil Middle-distillate Fraction: Analysis of the Extent of Sulfur Removal and the Effect of Removal on Remaining Sulfur", Appl. Environ. Microbiol., 65, 1 (1999).
16 W. Mazurek and V. M. Silva, "Examination of Polysulfide Sealant by Scanning Electron Microscopy", MRL-R-1096, Materials Research Laboratory, Department of Defense, Malbourne (1988).