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Assessment of RELAP5 code model to simulate U-shaped heat pipe performance for heat sink

Anhar Riza Antariksawan, ARA and Muhammad Hadi Kusumah, MHK and Surip Widodo, SW and Giarno, GN and Mulya Juarsa, MJ and Hendro Tjahjono, HT and Dedy Haryanto, DH (2019) Assessment of RELAP5 code model to simulate U-shaped heat pipe performance for heat sink. In: Seminar SENTEN 2018 Palembang, 4 - 5 Juli 2018, UNIVERSITAS SRIWIJAYA - PALEMBANG 2018.

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Abstract

Abstract One of important component in a high temperature gas cooled reactor (HTGR) is reactor cavity cooling system (RCCS). The function of the RCCS is to remove the heat going out from the reactor pressure vessel. On the other hand, the use of passive system is highly considered in the nuclear reactor design, including in the HTGR design. The heat pipe is one of the passive apparatus. This current study deals with the research on the use of heat pipe to the RCCS design. As part of the study, the performance of U-shaped heat pipe will be assessed both through an experiment and numerical simulation methodology. The objective of this study is to assess the validity of the RELAP5 code model to simulate a U-shaped heat pipe performance. A small U-shaped heat pipe with fins in the condenser part is modelled using the RELAP5/SCDAP code. The result of simulation shows that the heat pipe could removed the heat received in the evaporator to the environment through the condenser of that heat pipe. The phenomena of evaporation and condensation are identified during heat removal. However, the steady state condition is not obtained until the end of the calculation. The calculated thermal resistance of the heat pipe is approx. 0.01258 °C/W. It is concluded that the model could simulate reasonably the heat pipe performance. The model needs to be improved, especially for the finned tube condenser. Anhar R. Antariksawan, Mukhsinun Hadi Kusuma, Surip Widodo, Giarno, Mulya Juarsa, Hendro Tjahyono and Dedy Haryanto

Item Type: Conference or Workshop Item (Paper)
Subjects: Keselamatan dan Keamanan Nuklir
Divisions: Pusat Teknologi dan Keselamatan Reaktor Nuklir
Depositing User: USER PTKRN BATAN
Date Deposited: 21 Apr 2020 06:53
Last Modified: 21 Apr 2020 06:53
URI: http://repo-nkm.batan.go.id/id/eprint/9515

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