Development of high temperature gas-cooled reactor (HTGR) fuel in Japan

Ueta, Shohei; Aihara, Jun; Sawa, Kôichiro; Yasuda, Atsushi; Honda, Masaki; Furihata, Noboru

doi:10.1016/j.pnucene.2011.05.005

Cited by 43 publications

(26 citation statements)

References 15 publications

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“…Second, JAEA has also developed zirconium carbide (ZrC)-coated fuel particles in laboratory scale. They are assured to maintain their integrity at higher temperatures and burn-up conditions [18]. Third, Japan presented that VHTR is a principal candidate for the Generation IV reactor systems.…”

Section: Japan Atomic Energy Agency (Jaea)mentioning

confidence: 99%

The Strategy to Support HTGR fuels for The 10 MW Indonesia's Experimental Power Reactor (RDE)

Taryo

Ridwan²,

Sunaryo³

et al. 2018

urania

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STRATEGY TO SUPPORT HTGR FUEL FOR THE 10 MW INDONESIA'S EXPERIMENTAL POWER REACTOR (RDE). The Indonesia's 10 MW experimental power reactor (RDE) is developed based on high temperature gas-cooled reactor (HTGR) and the program of the RDE was firstly introduced to the Agency for National Development Planning (BAPPENAS) at the beginning of 2014. The RDE program is expected to have positive impacts on community prosperity, self-reliance and sovereignty of Indonesia. The availability of RDE will be able to accelerate advanced nuclear power technology development and hence elevate Indonesia to be the nuclear champion in the ASEAN region. The RDE is expected to be operable in 2022/2023. In terms of fuel supply for the reactor, the first batch of RDE fuel will be inclusive in the RDE engineering, procurement and construction (RDE-EPC) contract for the assurance of the RDE reactor operation from 2023 to 2027. Consideration of RDE fuel plant construction is important as RDE can be the basis for the development of reactors of similar type with small-medium power (25 MWe-200/300 MWe), which are preferable for eastern part of Indonesia. To study the feasibility of the construction of RDE fuel plant, current state of the art of the R&D on HTGR fuel in some advanced countries such as European countries, the United States, South Africa and Japan will be discussed and overviewed to draw a conclusion about the prospective countries for supporting the fuel for long-term RDE operation. The strategy and roadmap for the preparation of the RDE fuel plant construction with the involvement of national stakeholders have been developed. The best possible vendor country to support HTGR fuel for long-term operation is finally accomplished. In the end, this paper can be assigned as a reference for the planning and construction of HTGR RDE fuel fabrication plant in Indonesia.Keywords: RDE, Indonesia, HTGR, fuel, strategy.

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Section: Japan Atomic Energy Agency (Jaea)mentioning

confidence: 99%

The Strategy to Support HTGR fuels for The 10 MW Indonesia's Experimental Power Reactor (RDE)

Taryo

Ridwan²,

Sunaryo³

et al. 2018

urania

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“…Terdapat beberapa produk fisi penting yang dihasilkan dalam bahan bakar selama reaktor beroperasi, seperti 134 Cs, 137 Cs, 90 Sr, 131 I, 110m Ag, 85 Kr dan 133 Xe, 107 Pd [9,10]. Produk fisi tersebut diusahakan agar tetap terkungkung dalam bahan bakar dan tidak terlepas ke lingkungan selama reaktor beroperasi.…”

Section: Pendahuluanunclassified

Analisis Kinerja Bahan Bakar Reaktor Tipe HTGR Sebagai Penghalang Produk Fisi

Dewita¹,

Alimah²

2017

Jurnal Pengembangan Energi Nuklir

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ANALISIS KINERJA BAHAN BAKAR REAKTOR TIPE HTGR SEBAGAI PENGHALANG PRODUK FISI.Reaktor tipe HTGR merupakan reaktor berpendingin gas temperatur tinggi (~ 900 o C). Terdapat 2 tipe elemen bakar HTGR yaitu prismatik dan pebble bed. Kedua tipe elemen bakar tersebut tersusun dari partikel berlapis TRISO yang terdiri dari lapisan IPyC, SiC dan OPyC yang berfungsi sebagai pengungkung produk fisi dan menjaga integritas bahan bakar. Reaktor beroperasi dengan temperatur tinggi, sehingga kinerja/ kemampuan bahan bakar dalam menahan produk fisi perlu diketahui. Tujuan studi adalah untuk memperoleh pemahaman tentang karakteristik produk fisi yang dihasilkan bahan bakar, karakteristik penghalang dan kinerja bahan bakar dalam menahan produk fisi. Metode yang digunakan adalah kajian dan analisis dengan mengevaluasi kemampuan penghalang (barrier) dalam menahan produk fisi pada elemen bakar prismatik dan pebble. Hasil studi menunjukkan bahwa terdapat beberapa mekanisme potensial lepasnya produk fisi, yaitu: difusi melalui lapisan, kerusakan lapisan, korosi SiC oleh produk fisi palladium dan dekomposisi termal SiC. Bahan bakar merupakan penghalang pertama terhadap lepasnya radionuklida produk fisi sedangkan lapisan SiC merupakan penghalang utama yang menahan sebagian besar produk fisi gas dan padat pada temperatur operasi normal (< 1250°C 239 Pu. Di antara produk fisi tersebut, paladium (Pd) yang lepas dari kernel dan mencapai lapisan SiC dapat bereaksi dan menyebabkan korosi. Berdasarkan hal itu, untuk menjaga integritas bahan bakar harus dilakukan pembatasan kondisi operasi reaktor, seperti: temperatur, derajat bakar, energi aktivasi produk fisi dan kualitas bahan bakar. Pada bahan bakar tipe prismatik, terdapat 8 penghalang, yaitu: kernel bahan bakar, lapisan SiC dan PyC, matriks grafit, kompak (pil) bahan bakar, sleeve grafit, sirkuit primer, blok grafit heksagonal dan bangunan reaktor. Sedangkan pada bahan bakar pebble terdapat 6 penghalang, yaitu kernel bahan bakar, lapisan SiC dan PyC, matriks grafit, lapisan grafit sebelah luar, sirkuit primer dan bangunan reaktor. Namun, jumlah penghalang bukan merupakan satu-satunya faktor yang menentukan adanya kemungkinan lepasnya produk fisi ke lingkungan. ABSTRACT ANALYSIS FOR HTGR TIPE REACTOR FUEL PERFORMANCE AS THE BARRIER PRODUCT FISSION. HTGR tipe reactor is gas cooled reactor with high outlet temperature (~ 900 o C). There are 2 types of HTGR fuel elements, prismatic and pebble bed. Both types of fuel elements composed of TRISO-coated particles are composed of layers IPyC, SiC and OPyC which serves as a confinement of fission products and maintain the integrity of the fuel. The reactor has high operating temperature, so fuel performance in retaining of fission products need to be understand. The purpose ofthe studyis to obtainan understanding of the essential characteristics of fission products produced in the HTGR fuel, fission product barrier characteristics and fuel performance in retaining fission products. The method used is the study and analysis by evaluating capabiliti...

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“…The current GIF design consists of a helium-cooled reactor with graphite as a moderator, TRISO fuel and coolant outlet temperature above 900 [9]. The second is the result of the German program, which was later imported by the People's Republic of China and developed in the Republic of South Africa as the Pebble Bed Modular Reactor (PBMR).…”

Section: Very-high-temperature Reactor (Vhtr)mentioning

confidence: 99%