Micro cross-section parameterization based on RMC code

Zhiyuan Feng; Kaiwen Li; Hao Luo; Kan Wang

doi:10.11884/HPLPB202234.210309

Journals >High Power Laser and Particle Beams >Volume 34 >Issue 2 >Page 026006 > Article

High Power Laser and Particle Beams
Vol. 34, Issue 2, 026006 (2022)

Micro cross-section parameterization based on RMC code

Zhiyuan Feng, Kaiwen Li, Hao Luo, and Kan Wang

Author Affiliations

Department of Engineering Physics, Tsinghua University, Beijing 100084, China

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DOI: 10.11884/HPLPB202234.210309 Cite this Article

Zhiyuan Feng, Kaiwen Li, Hao Luo, Kan Wang. Micro cross-section parameterization based on RMC code[J]. High Power Laser and Particle Beams, 2022, 34(2): 026006 Copy Citation Text

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Fig. 1. Multi-physical conditions calculation process

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Fig. 2. Burnable poison assembly geometry

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Fig. 3. Radial model of core

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Fig. 4. Comparison of multigroup RMC and continues energy RMC under 550 K

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Fig. 5. Relative difference in radial power distribution under 0.05 MWD/tHM burnup

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Fig. 6. Relative difference in radial power distribution under 2.5 MWD/tHM burnup

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Fig. 7. Relative difference in radial power distribution under 11.5 MWD/tHM burnup

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step	time/day	burnup（MWD/kgHM）
0	0.00	0.00
1	1.44	0.05
2	2.88	0.10
3	5.76	0.20
4	8.64	0.30
5	14.41	0.50
6	21.61	0.75
7	28.81	1.00
8	43.22	1.50
9	72.03	2.50
10	100.85	3.50
11	129.66	4.50
12	158.47	5.50
13	187.29	6.50
14	216.10	7.50
15	244.91	8.50
16	273.73	9.50
17	302.54	10.50
18	331.35	11.50

Table 1. Setting of burnup

step RMC	Continuous energy	multi-group	relative error /pcm
0	1.179881	1.178647	123.4
1	1.149456	1.149575	11.9
2	1.166661	1.16565	101.1
3	1.165531	1.164513	101.8
4	1.164228	1.163652	57.6
5	1.162347	1.161281	106.6
6	1.16069	1.160169	52.1
7	1.159095	1.157965	113
8	1.156514	1.154763	175.1
9	1.14495	1.144422	52.8
10	1.13964	1.138056	158.4
11	1.135396	1.134719	67.7
12	1.130832	1.130409	42.3
13	1.126472	1.12633	14.2
14	1.122124	1.121316	80.8
15	1.117846	1.117473	37.3
16	1.113375	1.112881	49.4
17	1.108662	1.109897	123.5
18	1.104564	1.104411	15.3

Table 2. Comparison of k_eff of multigroup RMC and continues energy RMC under 550 K

Zhiyuan Feng, Kaiwen Li, Hao Luo, Kan Wang. Micro cross-section parameterization based on RMC code[J]. High Power Laser and Particle Beams, 2022, 34(2): 026006

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