EVALUASI OPERASI REAKTOR G.A SIWABESSY SIKLUS OPERASI 77

EVALUASI OPERASI REAKTOR GA. SIWABESSY SIKLUS OPERASI 77. Operasi reaktor GA Siwabessy siklus operasi 77 berlangsung mulai tanggal 30 Nopember 2011 s/d 06 Maret 2012. Sebagai bahan masukan untuk kelancaran dan keselamatan operasi reaktor berikutnya perlu dilakukan evaluasi terhadap operasi reaktor sebelumnya. Evaluasi dilakukan melalui studi literatur, pengumpulan data, pembahasan dan analisis terhadap jalannya operasi reaktor, mulai dari pembentukan konfigurasi teras, operasi daya rendah, operasi daya tinggi, pemanfaatan reaktor, serta gangguan-gangguan yang timbul pada saat pengoperasian reaktor. Operasi reaktor siklus 77 telah dioperasikan dengan energi sebesar 654,0094 MWD, digunakan untuk melayani iradiasi sebanyak 53 target/sampel, penyediaan neutron tabung berkas PTBIN, dan pewarnaan batu topaz sebanyak ± 447 kg. Gangguan scram/penurunan daya terjadi 4 kali dan gangguan yang terjadi pada sistem bantu reaktor sebanyak 49 kali, namun hampir semua gangguan tersebut dapat diatasi. Secara keseluruhan dapat disimpulkan bahwa meskipun terjadi beberapa gangguan, operasi reaktor RSG-GAS siklus operasi 77 berlangsung dengan selamat sesuai dengan target yang ditetapkan.
Kata kunci: operasi, reaktor, siklus
ABSTRACT
EVALUATION OF THE GA SIWABESSY REACTOR OPERATION FOR 77th CYCLE. The operation of reactor RSG-GAS for 77th cycle is conducted from November 30, 2011 to March 06, 2012. Evaluation result is used as a feedback to improve the next reactor operation cycle. It is accomplished through literature assessment, data collection, discussion and analysis of reactor operation commencing from the reactor core configuration, operation of low power, reactor power operation, reactor utilization and experiences on disturbance appear during reactor operation, . The reactor operation for 77th cycle has been achieved by developing power of 654, 0094 MWD and it was utilized for 53 samples irradiation, neutron beam services to PTBIN and topaz colouring on 447 kg. Scram occurred 4 times and disturbance at auxiliary system occurred 49 times. All disturbances have been successfully solved. It then can be concluded that the reactor operation for 77th cycle 77 is running well as expected.
Key word: operation, reactor, cycle