Investigation into thermal stress characteristics of pipe-in-pipe under high temperature condition

Si Hwa Jeong, Min Gu Won, Nam Su Huh, Yun-Jae Kim, Young Jin Oh, Jae Boong Choi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, the thermal stress characteristics of the pipe-in-pipe(PIP) system under high temperature condition are analyzed. The PIP is a type of pipe applied in sodium-cooled faster reactor(SFR) and has a different geometry from a single pipe. In particular, under the high temperature condition of the SFR, the high thermal stress is generated due to the temperature gradient occurring between the inner pipe and outer pipe. To investigate the thermal stress characteristics, three cases are considered according to geometry of the support. The fully constrained support and intermediate support are considered for case 1 and 2, respectively. For case 3, both supports are applied to the actual curved pipe. The finite element(FE) analyses are performed in two steps for each case. Firstly, the heat transfer analysis is carried out considering the thermal conduction, convection and radiation conditions. From the heat transfer analysis, the temperature distribution results in the piping system are obtained. Secondly, the structural analysis is performed considering the temperature distribution results and boundary conditions. Finally, the effects of the geometric characteristics on the thermal stress in the PIP system are analyzed.

Original languageEnglish
Title of host publicationDesign and Analysis
PublisherAmerican Society of Mechanical Engineers (ASME)
Volume3A
ISBN (Electronic)9780791851623
DOIs
Publication statusPublished - 2018 Jan 1
EventASME 2018 Pressure Vessels and Piping Conference, PVP 2018 - Prague, Czech Republic
Duration: 2018 Jul 152018 Jul 20

Other

OtherASME 2018 Pressure Vessels and Piping Conference, PVP 2018
CountryCzech Republic
CityPrague
Period18/7/1518/7/20

Fingerprint

Thermal stress
Pipe
Temperature
Fast reactors
Temperature distribution
Sodium
Heat transfer
Geometry
Piping systems
Structural analysis
Thermal gradients
Boundary conditions
Radiation

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Jeong, S. H., Won, M. G., Huh, N. S., Kim, Y-J., Oh, Y. J., & Choi, J. B. (2018). Investigation into thermal stress characteristics of pipe-in-pipe under high temperature condition. In Design and Analysis (Vol. 3A). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/PVP2018-84578

Investigation into thermal stress characteristics of pipe-in-pipe under high temperature condition. / Jeong, Si Hwa; Won, Min Gu; Huh, Nam Su; Kim, Yun-Jae; Oh, Young Jin; Choi, Jae Boong.

Design and Analysis. Vol. 3A American Society of Mechanical Engineers (ASME), 2018.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Jeong, SH, Won, MG, Huh, NS, Kim, Y-J, Oh, YJ & Choi, JB 2018, Investigation into thermal stress characteristics of pipe-in-pipe under high temperature condition. in Design and Analysis. vol. 3A, American Society of Mechanical Engineers (ASME), ASME 2018 Pressure Vessels and Piping Conference, PVP 2018, Prague, Czech Republic, 18/7/15. https://doi.org/10.1115/PVP2018-84578
Jeong SH, Won MG, Huh NS, Kim Y-J, Oh YJ, Choi JB. Investigation into thermal stress characteristics of pipe-in-pipe under high temperature condition. In Design and Analysis. Vol. 3A. American Society of Mechanical Engineers (ASME). 2018 https://doi.org/10.1115/PVP2018-84578
Jeong, Si Hwa ; Won, Min Gu ; Huh, Nam Su ; Kim, Yun-Jae ; Oh, Young Jin ; Choi, Jae Boong. / Investigation into thermal stress characteristics of pipe-in-pipe under high temperature condition. Design and Analysis. Vol. 3A American Society of Mechanical Engineers (ASME), 2018.
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