Optimisasi Ukuran Teras High Temperature Gass-cooled Reactor (HTGR) dengan Daya 30 MWt Tipe Pebble Bed Berbasis Bahan Bakar Uranium

Desi Armanita, Dian Fitriyani, Topan Setiadipura

Abstract


Telah dilakukan optimasi ukuran teras Reaktor daya Eksperimental (RDE). Optimasi ini bertujuan untuk memperoleh ukuran teras yang optimal untuk RDE 30 MWt berdasarkan aspek neutronik antara lain discharge burn up, fuel residence time dan distribusi daya dan aspek keselamatan. Pada tahap awal dilakukan optimasi pass bahan bakar. Pass bahan bakar menyatakan jumlah sirkulasi bahan bakar ke teras reaktor dan parameter optimasi pass adalah nilai power peaking factor mendekati 1, discharge burn up tinggi serta memiliki temperatur puncak bahan bakar setelah DLOFC rendah. Berdasarkan parameter tersebut didapatkan pass optimal adalah 5 pass. Variasi ukuran teras ditentukan dengan dua cara, yaitu variasi ukuran teras pada volume tetap dan variasi tinggi teras pada diameter tetap. Tahap selanjutnya, terhadap ukuran teras yang optimal, dilakukan optimasi fraksi enrichment dan heavy metal loading bahan bakar. Dari hasil perhitungan diperoleh bahwa pada volume tetap (5 m3) parameter-parameter neutronik bernilai optimal jika ukuran diameter teras 1,5 m dan tinggi 2,83 m, sedangkan pada diameter teras tetap (1,8 m) parameter-parameter neutronik optimal pada ukuran tinggi teras 3,931 m.  Pada kedua ukuran teras ini aspek keselamatan, discharge burn up dan fuel residence time optimal pada enrichment 17% dan heavy metal loading 6 grU/pebble.

 

Core size optimization of Experimental Power Reactor (EPR) has been done. This optimization aims to obtain the optimal core size for the RDE 30 MWt based on the neutronik aspect among other discharge burn ups, fuel residence time, power distribution and safety aspect. In the early stages the fuel pass optimization is done. The fuel pass is the amount of fuel circulation to the reactor core and the pass optimization parameter is the value of power peaking factor approaching 1, high discharge burnup as well as having a fuel peak temperature after DLOFC is low. According to the parameters, the optimal pass is 5 passes. The variation in the size of the core is determined in two ways, which is the core size variation on fixed volumes and a high variation of the core at fixed diameter. The next stage, against the optimal core size, carried out the optimization of the fraction of enrichment and heavy metal loading fuel.  From the results of the calculations obtained that on a fixed volume (5 m3) neutronik parameters are optimal if the size of the core diameter is 1.5 m and height 2.83 m, while on the fixed diameter of the ratio (1.8 m) The optimal neutronik parameters of on the size Height of core 3.931 m.  On both of these core sizes are safety aspects, discharge burn up and fuel residence time is optimal on the enrichment of 17% and heavy metal loading 6 grU/pebble.


Full Text:

PDF

References


Mondjo., Pengantar Teknologi Nuklir (Universitas Gadjah Mada, Yogyakarta, 2013).

Nagaya, Y. Okumura, K. Mori, T dan Nakazato, W, Analysis of the HTR-10 initial core with a Monte Carlo mode MVP, Japan Atomic Energy Research Institute, Okayama, 2004.

Nursyahid, F, F. Setiadipura, T dan Agung, A, Studi Awal Optimasi Burn-up HTR-PM 150 MWt dengan Menggunakan Bahan Bakar U-Th, Prosiding Seminar Nasional Teknologi Energi Nuklir 2016 (PTKRN BATAN) 2016.

Setiadipura, T. Bakhri, S. Sunaryo, G, R dan Wisnusubroto, D, S, Cooling Passive Safety Features Of Reaktor Daya Eksperimental, International Conference on Thermal Science and Technology, 2018.

Zuhair, investigasi kritikalitas HTR pebble bed sebagai fungsi radius dan pengkayaan bahan bakar kernel, Indonesian Journal of Applied Physical, 2(2), hal 146-156.

Warstek, 2019, https://warstek.com/2018/04/21/rdebatan/, diakses 25 september 2019.




DOI: https://doi.org/10.25077/jfu.9.1.100-109.2020

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License

Published by:

Departemen Fisika, FMIPA Universitas Andalas

Kampus Unand Limau Manis Padang Sumatera Barat 25163

Telepon 0751-73307

Email:jfu@sci.unand.ac.id