Analisis Neutronik pada Gas Cooled Fast Reactor (GCFR) dengan Variasi Umur Teras dan Daya Reaktor

Authors

  • Widya Sardi Laboratorium Fisika Nuklir, Jurusan Fisika Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Andalas
  • Dian Fitriyani Laboratorium Fisika Nuklir, Jurusan Fisika Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Andalas
  • Feriska Handayani Irka Laboratorium Fisika Nuklir, Jurusan Fisika Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Andalas

DOI:

https://doi.org/10.25077/jfu.7.2.151-158.2018

Abstract

Telah dilakukan analisis neutronik pada Gas Cooled Fast Reactor (GCFR) dengan variasi umur teras dan daya reaktor. Reaktor ini menggunakan uranium alam sebagai bahan bakar dan helium sebagai pendingin. Parameter neutronik yang diamati meliputi faktor multiplikasi (keff) dan densitas bahan bakar. Pengaturan bahan bakar menggunakan strategi shuffling pada model teras silinder dua dimensi R-Z.Teras dibagi menjadi 10 region. Setiap 10 tahun bahan bakar yang ada pada masing-masing region di shuffling ke region berikutnya. Bahan bakar di region 10 dikeluarkan sedangkan pada region 1 akan diisi dengan bahan bakar baru. Penelitian ini dilakukan dengan 3 variasi umur teras dan 3 variasi daya reaktor. Perhitungan menggunakan kode SRAC dengan JENDL-32 sebagai data library. Hasil perhitungan menunjukkan bahwa reaktor dapat dioperasikan hingga 100 tahun pada daya 500 MWTh karena neutron yang berada dalam teras reaktor dapat mempertahankan kekritisannya selama reaktor beroperasi. Semakin lama umur teras maka nilai densitas 235U dan 238U semakin berkurang dan nilai densitas 239Pu semakin bertambah. Semakin tinggi daya yang digunakan maka densitas bahan bakar yang tersisa di akhir periode burn up lebih rendah.

 

Kata kunci : Burn up, faktor multiplikasi, GCFR, shuffling, uranium alam

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Published

2018-04-02

How to Cite

Sardi, W., Fitriyani, D., & Irka, F. H. (2018). Analisis Neutronik pada Gas Cooled Fast Reactor (GCFR) dengan Variasi Umur Teras dan Daya Reaktor. Jurnal Fisika Unand, 7(2), 151–158. https://doi.org/10.25077/jfu.7.2.151-158.2018

Issue

Vol. 7 No. 2 (2018)

Section

Articles

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Copyright (c) 2018 Widya Sardi, Dian Fitriyani, Feriska Handayani Irka

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