TY - GEN
T1 - Investigation into thermal stress characteristics of pipe-in-pipe under high temperature condition
AU - Jeong, Si Hwa
AU - Won, Min Gu
AU - Huh, Nam Su
AU - Kim, Yun Jae
AU - Oh, Young Jin
AU - Choi, Jae Boong
N1 - Funding Information:
This work was supported by the National Research Foundation (NRF) grant funded by the Korea government (MSIP: Ministry of Science, ICT and Future Planning) (2017M2A8A6016134)
Funding Information:
This work was supported by the National Research Foundation (NRF) grant funded by the Korea government (MSIP:Ministry of Science, ICT and Future Planning) (2017M2A8A6016134)
PY - 2018
Y1 - 2018
N2 - 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.
AB - 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.
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U2 - 10.1115/PVP2018-84578
DO - 10.1115/PVP2018-84578
M3 - Conference contribution
AN - SCOPUS:85056865099
T3 - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
BT - Design and Analysis
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2018 Pressure Vessels and Piping Conference, PVP 2018
Y2 - 15 July 2018 through 20 July 2018
ER -