PERHITUNGAN BURN UP BAHAN BAKAR REAKTOR RSG-GAS MENGGUNAKAN PAKET PROGRAM BATAN-FUEL

PERHITUNGAN BURN UP BAHAN BAKAR REAKTOR RSG-GAS MENGGUNAKAN PAKET PROGRAM BAT AN-FUEL. Perhitungan distribusi burn up bahan bakar silisida 2,96 grU/cc RSG-GAS teras 78 menggunakan paket program BAT AN-FUEL perlu dilakukan. Dengan memberikan karakter input berupa: daya yang terbangkitkan, lama waktu operasi, dan asumsi model teras 5/1, diperoleh hasil . perhitungan burn up pada seluruh teras dan selnya. Dari hasil perhitungan didapatkan: burn up minimum RI505 sebesar 6,82 % pada posisi A-9, sedangkan burn up maksimum RI-467 sebesar 57,57 % pada posisi B-7. Hal ini masih memenuhi kriteria keselamatan sebagaimana disyaratkan dalam Laporan Analisis Keselamatan
(LAK) reaktor RSG-GAS dimana burn up maksimum sebesar 59,59 %. Hal ini juga menunjukkan bahwa poJa penempatan elemen bahan bakar teras reaktor RSG-GAS sudah optimal.
Kata kunci : burn up, BA TAN-FUEL.

ABSTRACT
BURN-UP CALCULATION OF THE FUEL ELEMENT IN RSG-GAS REACTOR USING PROGRAM PACKAGE BATAN-FUEL. Calculation of bllrn lip distrihlltion c!l 2.96 grU'cc Silicide jilel element at the78''' reactor cycle using computer code program of BA7:'/N-FUEL has been done. Ihis calculation Iises inputs sllch as generated power. operation time al/(l a core a.uumption model of 5/ I. Using tllis calculation model bllrn upfor the entire/irel elements at the reactor core are able to he calculated. From the calculation it is obtained that the minimum bllrn up of 6.82% is RI-50 at the position of A-9. while the the maximum burn lip of 57.57% is HI 467 at the position of 8-7. Based on the sq(ety criteria as ~pec!fied in the Safety
Analysis Report (SAR) RSG-GAS reactor. the maximum fuel hum up allowed is 59.59%. It then can be concluded that pattern ollitel elements placement af the reaclOrcore are properly and optima/~v done.
Keywords: bllrn up. IUI>IN-FUEL.