Advanced SearchSearch Tips
Design for Strengthening Structural Integrity of the Reflective Metal Insulation in the Nuclear Power Plant
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Design for Strengthening Structural Integrity of the Reflective Metal Insulation in the Nuclear Power Plant
Lee, Sung Myung; Eo, Min Hun; Kim, Seung Hyun; Jang, Kye Hwan;
  PDF(new window)
The goal of this paper is to investigate structural integrity factors of RMI(reflective metal insulation) to confirm the design requirements in nuclear power plant. Currently, a glass wool insulation is using now, but it will gradually be replaced with the reflective metal insulation maded by stainless steel plates. The main function of an insulation is to minimize a heat loss of vessel and pipes in RCS(reactor coolant system). It has to maintain structural a integrity in nuclear power plant life duration. In this study, the structural integrity analysis was carried out both multi-plate and outer shell plate by using a static analysis and experimental test. First, inner multi-plate has a self support structure for being air space. Because the effect of total static weight in multi-layer plate is low, a plate collapse possibility is not high. Considering optimum thin plate pressing process, it has to pre-check the basic physical properties. Second, the outer segment thickness and stiffener shape are verified by the numerical static analysis, and sample test for both type of panel and cylindrical pipe model.
reflective metal insulation;structural integrity;pressing process;fabrication;insulation outer thickness and stiffener;
 Cited by
S. B. Kim, "A Study on the Insulation Design Parameters of the Reactor in the Korean Standard Nuclear Power Plant", The Korea Society for Energy Engineering, Vol. 8. No. 2, pp. 285-292, 1999.

R. T. Bynum. Jr, "Insulation handbook", McGraw-Hill, 2001.

KEPCO E&C, "Design Specification for Reactor Vessel Insulation", Shin-kori Unit 3 and 4's NSSS Revision 3, 2010.

NISSHIN STEEL, "Quality Product of Stainless Steel Foil", NISSHIN STEEL Brochure, pp.5-6

ASTM E517, "Standard Test Method for Plastic Strain Ratio r for Sheet Metal", 2010.

ASTM E8/E8M, "Standard Test Methods for Tension Testing of Metallic Materials", 2011.

ANSYS, "ANSYS CFX Ver 14.5", 2014.