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Analysis of coolant flow on various hot gas plenum geometry of the Non Commercial Power Reactor (RDNK) (Muhammad Yunus a), Farisy Yogatama Sulistyo, Kiswanta and Muhammad Subekti

M. Yunus, MY and Farisy yogatama, SB and Kiswanta, KW and M. Subekti, MS (2019) Analysis of coolant flow on various hot gas plenum geometry of the Non Commercial Power Reactor (RDNK) (Muhammad Yunus a), Farisy Yogatama Sulistyo, Kiswanta and Muhammad Subekti. In: ICONets 2019 Universitas Andalas Padang Sumatera Barat, 18 September 2019, Universitas ANDALAS Fakultas Teknik Padang Sumatera Barat.

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Abstract

Abstract. On design criteria of cooling process in HTGR reactor, besides considering the structural strength of the reactor core and gas mixing performance, the pressure drop in the core reactor as well as the bottom reflector, is maintained as low as possible in order to avoid leakage or bypass flow. To investigate the effect of varying hot gas plenum geometry to the coolant flow behavior in the bottom reflector structure of the RDNK reactor, computational fluid dynamic simulation has been carried out. There are three variations of the hot gas plenum high that is 150 mm, 200 mm, and 250 mm. The models are simulated by using Fluent software. By simulating the cooling process in the bottom reflector it was obtained differences in temperature and pressure drop of each model. As a result of pressure drop, it was found that a model with a hot gas plenum height of 250 mm has the lowest pressure drop. Meanwhile, the average temperature of the outlet channel of all simulation model is not significantly different. Keywords: coolant flow, hot gas plenum, non-commercial power reactor

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: 04 Aug 2020 08:07
Last Modified: 04 Aug 2020 08:07
URI: http://repo-nkm.batan.go.id/id/eprint/9946

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