Studi Model Benchmark McNp6 Dalam Perhitungan Reaktivitas Batang Kendali HTR-10

Zuhair, Suwoto

doi:10.17146/gnd.2016.19.2.2880

Cited by 11 publications

(2 citation statements)

References 5 publications

(6 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4. This model has been verifi ed through the MCNP6 benchmark model in the calculation of HTR-10 control rod reactivity in a good agreement with a previous study [21].…”

Section: Modeling Of Control Rodssupporting

confidence: 82%

The effects of fuel type on control rod reactivity of pebble-bed reactor

et al. 2019

View full text Add to dashboard Cite

As a crucial core physics parameter, the control rod reactivity has to be predicted for the control and safety of the reactor. This paper studies the control rod reactivity calculation of the pebble-bed reactor with three scenarios of UO 2 , (Th,U)O 2, and PuO 2 fuel type without any modifi cations in the confi guration of the reactor core. The reactor geometry of HTR-10 was selected for the reactor model. The entire calculation of control rod reactivity was done using the MCNP6 code with ENDF/B-VII library. The calculation results show that the total reactivity worth of control rods in UO 2 -, (U,Th)O 2 -, and PuO 2 -fueled cores is 15.87, 15.25, and 14.33%k/k, respectively. These results prove that the effectiveness of total control rod in thorium and uranium cores is almost similar to but higher than that in plutonium cores. The highest reactivity worth of individual control rod in uranium, thorium and plutonium cores is 1.64, 1.44, and 1.53%k/k corresponding to CR8, CR1, and CR5, respectively. The other results demonstrate that the reactor can be safely shutdown with the control rods combination of CR3+CR5+CR8+CR10, CR2+CR3+CR7+CR8, and CR1+CR3+CR6+CR8 in UO 2 -, (U,Th)O 2 -, and PuO 2 -fueled cores, respectively. It can be concluded that, even though the calculation results are not so much different, however, the selection of control rods should be considered in the pebble-bed core design with different scenarios of fuel type.

show abstract

“…4. This model has been verifi ed through the MCNP6 benchmark model in the calculation of HTR-10 control rod reactivity in a good agreement with a previous study [21].…”

Section: Modeling Of Control Rodssupporting

confidence: 82%

The effects of fuel type on control rod reactivity of pebble-bed reactor

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The built-in CINDER module was also involved in calculating the fuel burnup. The modeling and calculation procedures introduced first by Lebenhaft [20] have been applied in various publications [21][22][23][24][25][26][27][28][29][30][31].…”

Section: Isotopesmentioning

confidence: 99%

Study on Temperaturecoefficient of Reactivity for Pebble Bed Reactorwith Thorium Fuel

Suwoto¹,

Luthfi²,

Adrial³

et al. 2019

Preprint

View full text Add to dashboard Cite

The pebble bed reactor has a flexibility to utilize a wide range of different fuel cycles without significantly modifying the reactor core geometry. These fuel cycles can be comprised of various fissile and fertile fuel isotopes. The purpose of this paper is to study the temperature coefficient of reactivity for pebble bed reactor fuelled by thorium. The HTR-Modul was chosen as the reactor model. A series of calculations was performed by the use of the Monte Carlo transport code MCNP6 with the continuous energy nuclear data library ENDF/B-VII. The k∞ calculation results show that the fuel load with a mass of 2g Th/pebble, 5g Th/pebble and 20g Th/pebble can achieve a critical core with discharge burnup of 65,644; 101,500; and 114,215 MWd/t, respectively. The calculation results of temperature coefficient conclude that specific mass of thorium per pebble might have a positive temperature coefficient of reactivity at a certain temperature. Further investigation needs to be conducted to analyze the behavior of these temperature reactivity coefficients in more detail.

show abstract