Ini Paper Kedua

STUDY OF HIGH TEMPERATURE ENGINEERING TEST REACTOR (HTTR)

WITH MOX AND MINOR ACTINIDES AS A FUEL

by

Ardita F. Fauzia, Novitrian, and A. Waris

Klo paper yang satu ini, jauh lebih percaya diri waktu presentasinya. Soalnya ini emang hasil kerja mandiri terpantau (kermantau) dulu waktu ma Pak Waris. Jadinya, lebih ngerti.

ceritanya tentang :

High Temperature Engineering Test Reactor (HTTR) is one type of high temperature reactor with helium as a coolant developed by Japan. HTTR has been designed with thermal output until 30 MW and 9500C of outlet temperature. Beside produces electricity, HTTR also designed to produce hydrogen, a future energy source. Originally, HTTR using uranium for its fuel. Nowadays, Non-proliferation becomes a constraint in any nuclear reactor study. Non-proliferation strategy proposes that there is no need to separate plutonium with minor actinides (MA) in the spent fuel reprocessing process.

In this study, we simulated HTTR with plutonium and minor actinides as the loaded fuel, to support non-proliferation. This simulation is performed using SRAC program, with nuclear data library was derived from JENDL3.2. Reactor core calculation was done by using CITATION module in – R – Z geometry. We also evaluated the composition of fuel along burnup. We enriched the U-235 from 6.0 % – 20.0 % with added plutonium and minor actinides 10.0 % in total number of fuels.

The calculation results show that the effective multiplication factor (Keff) is higher than 1 when the enrichment of U-235 is 17.0 %, which means that this reactor can achieve its criticality condition.

Intinya ngeganti bahan bakar HTTR yang umumnya pake Uranium alam diganti dengan Mixed Oxide (Uranium+Plutonium) dan Aktinida Minor untuk mendukung program Non-proliferasi.

Klo di reaktor nuklir hasil yang diamati itu faktor multiplikasi efektifnya (Keff). Apakah bisa diatas 1 atau enggak. Soalnya reaktor baru bisa dioperasiin kalo Keff-nya udah diatas 1.

hasilnya :

Keff Fuel Cell MOX

Jadi, kekritisan itu baru didapet pas pengayaan U-235 udah 19% setelah ditambah plutonium dan minor aktinida.

Sedangkan klo pake uranium alam aja, baru diperkaya 6% udah mencapai Keff > 1.

Kesimpulannya :

Plutonium and MA may not be utilized in HTTR with helium coolant due to neutron spectrum and burnable poison characteristics of several isotopes.

Begitu sodara2 ..

3 Comments

Filed under akademik

3 responses to “Ini Paper Kedua

  1. wow, saya tetap tidak mengerti, mungkin harus diterangkan secara langsung kali ya…

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