0
Research Papers: Operations, Applications & Components

Comparison of the Thermal Performance of Damaged and Intact Shock Absorber

[+] Author and Article Information
Kyoung-sik Bang

e-mail: nksbang@kaeri.re.kr

Ju-chan Lee

e-mail: sjclee@kaeri.re.kr

Chung-seok Seo

e-mail: ncsseo@kaeri.re.kr

Ki-seog Seo

e-mail: nksseo@kaeri.re.kr
Korea Atomic Energy Research Institute,
P.O. Box 105, Yuseong,
Daejeon 305-600, Korea

Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received March 6, 2012; final manuscript received November 22, 2012; published online September 17, 2013. Assoc. Editor: Allen C. Smith.

J. Pressure Vessel Technol 135(5), 051601 (Sep 17, 2013) (7 pages) Paper No: PVT-12-1027; doi: 10.1115/1.4024441 History: Received March 06, 2012; Revised November 22, 2012

Regulatory requirements for a Type B package are specified in the Korea MEST Act 2009-37, IAEA Safety Standard Series No. TS-R-1, and US 10 CFR Part 71. These regulatory guidelines require that a Type B package for transporting radioactive materials should be able to withstand a test sequence consisting of a 9 m drop onto an unyielding surface, a 1 m drop onto a puncture bar, and a period of 30 min under a thermal condition of 800 °C. To evaluate the thermal shielding effect of a shock absorber, a thermal test was performed using a half scale model with shock absorber, which was damaged by both a 9 m drop test and a 1 m puncture test. For the purpose of comparison, the thermal test was also carried out using a half scale model with intact shock absorber. The maximum temperature of the seal in the upper part was measured at 273 °C, which is higher than the manufacturer's recommended maximum temperature in the thermal test using damaged shock absorber. This is because the shock absorber, which was broken in the drop test, was almost burned. However, the maximum temperature of the seal in the upper part was measured at 249 °C, which is lower than the manufacturer's recommended maximum temperature in the thermal test using intact shock absorber. Therefore, to maintain the containment boundary of the hot-cell cask, it is important that the manufacturing of the shock absorber prevent failure of shock absorber housing.

Copyright © 2013 by ASME
Your Session has timed out. Please sign back in to continue.

References

KOREA MEST Act. 2009-37, 2009, “Regulations for the Safe Transport of Radioactive Material”.
IAEA Safety Standard Series No. TS-R-1, 2008, “Regulations for Packaging and Transportation of Radioactive Material”.
U.S. Code of Federal Regulations, 2005, Title 10, Part 71, “Packaging and Transportation of Radioactive Material.”
Greiner, M., Shin, S., Faulkner, R. J., and Wirtz, R. A., 1998, “Transport Cask Response to Regulatory Format Thermal Events, Part 1: Rail Package,” Int. J. Radioact. Mater. Transp., 9(3), pp. 187–192. Available at: http://wolfweb.unr.edu/homepage/greiner/pubs/Fires/Part%201.pdf
Greiner, M., Faulkner, R. J., and Jin, Y. Y., 1998, “Transport Cask Response to Regulatory Format Thermal Events, Part 2: Truck Cask,” Int. J. Radioact. Mater. Transp., 9(3), pp. 193–198.
Greiner, M., Chalasani, N. R., and Suo-Anttila, A., 2008, “Thermal Protection Provide by Impact Limiters to a Containment Seal Within a Truck Package,” ASME J. Pressure Vessel Technol., 130, p. 011209. [CrossRef]
Parker Seal Company, 2001, Parker O-Ring Handbook, Catalog ORD 5700A/US, p. 164.
Quintiere, J. G., 2006, Fundamentals of Fire Phenomena, Wiley, New York.

Figures

Grahic Jump Location
Fig. 1

Configuration of the hot cell cask

Grahic Jump Location
Fig. 2

Cross section of the thermal test model

Grahic Jump Location
Fig. 3

Horizontal drop impact instance

Grahic Jump Location
Fig. 4

Deformed shape of shock absorber

Grahic Jump Location
Fig. 5

Side Puncture impact instance

Grahic Jump Location
Fig. 6

Deformation of outer shell

Grahic Jump Location
Fig. 7

1st test model installed in the furnace

Grahic Jump Location
Fig. 8

2nd test model installed in the furnace

Grahic Jump Location
Fig. 9

Average flame temperature

Grahic Jump Location
Fig. 10

Temperature history in the 1st thermal test

Grahic Jump Location
Fig. 11

Temperature history at O-ring

Grahic Jump Location
Fig. 12

Temperature history in the 2nd thermal test

Grahic Jump Location
Fig. 13

Test model after the 2nd thermal test

Grahic Jump Location
Fig. 14

Char shape of lid shock absorber (2nd thermal test)

Grahic Jump Location
Fig. 15

Char shape of bottom shock absorber (2nd thermal test)

Grahic Jump Location
Fig. 16

Temperature contours for the thermal analysis of the scale model

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In