Study on the influence of different working fluids on the hydraulic optimization design of high-temperature molten salt-canned motor pump

Tingjing DONG; Huiqing FAN; Yang ZOU; Hongjie XU

doi:10.11889/j.0253-3219.2023.hjs.46.060602

Journals >NUCLEAR TECHNIQUES >Volume 46 >Issue 6 >Page 060602 > Article

NUCLEAR TECHNIQUES
Vol. 46, Issue 6, 060602 (2023)

Study on the influence of different working fluids on the hydraulic optimization design of high-temperature molten salt-canned motor pump

Tingjing DONG^1,2, Huiqing FAN^1,2, Yang ZOU^1,2,*, and Hongjie XU^1,2

Author Affiliations

¹Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China

²University of Chinese Academy of Sciences, Beijing 100049, China

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DOI: 10.11889/j.0253-3219.2023.hjs.46.060602 Cite this Article

Tingjing DONG, Huiqing FAN, Yang ZOU, Hongjie XU. Study on the influence of different working fluids on the hydraulic optimization design of high-temperature molten salt-canned motor pump[J]. NUCLEAR TECHNIQUES, 2023, 46(6): 060602 Copy Citation Text

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Fig. 1. Computational model

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Fig. 2. Grids of the computational domain

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Fig. 3. Comparison results between the numerical computation and experimental tests

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Fig. 4. Flow chart of the multi-objective optimization model

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Fig. 5. Analysis of head significance

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Fig. 6. Pareto optimal solution set

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Fig. 7. Comparison of blade geometry (a) Original model and molten salt optimization model, (b) Original model and water optimization model

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Fig. 8. Parameters of the optimized models (a) Impeller inlet diameter, (b) Impeller outlet width, (c) Blade outlet placement angle, (d) Blade wrap angle, (e) Diffuser throat plane width

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Fig. 9. Turbulence kinetic energy distribution of blade surfaces (a)

O r i_{s a l t}

, (b)

O p t_{s a l t}

, (c)

O r i_{w a t e r}

, (d)

O p t_{w a t e r}

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Fig. 10. Pressure distribution of diffuser (a)

O r i_{s a l t}

, (b)

O p t_{s a l t}

, (c)

O r i_{w a t e r}

, (d)

O p t_{w a t e r}

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网格数量 Mesh number	扬程 Head / m
2 490 507	5.668 5
4 786 291	5.647 6
5 520 867	5.621 4
6 061 679	5.626 5

Table 1. Mesh independence test

参数Parameters	低水平（-1）Low level (-1)	高水平（1）High level (1)
叶轮进口直径Impeller inlet diameter D₁ / mm	115	145
叶轮出口宽度Impeller outlet width b₂ / mm	10	16
叶片进口边位置 Blade leading edge position l / mm	0	15
叶片进口冲角 Blade incidence angle β₁ / (º)	0	10
叶片包角 Blade wrap angle $φ$ / (º)	115	150
叶片出口安放角 Blade outlet placement angle $β_{B 2}$ / (º)	20	40
导叶喉部平面宽度 Diffuser throat plane width $a_{3}$ / mm	15	25
导叶出口平面宽度 Diffuser outlet plane width $a_{4}$ / mm	26	36
导叶进口轴向宽度 Diffuser inlet axial width $b_{3}$ / mm	25	35

Table 2. Parameters and levels

编号 Number	参数Parameters									熔盐Molten salt		水Water
编号 Number	$D_{1}$	$b_{2}$	$l$	$β_{1}$	$φ$	$β_{B 2}$	$a_{3}$	$a_{4}$	$b_{3}$	$H_{s a l t}$ / m	$η_{s a l t}$ / %	$H_{w a t e r}$ / m	$η_{w a t e r}$ / %
1	-1	-1	-1	1	1	1	1	1	1	3.070 1	44.91	3.246 0	47.27
2	-1	1	-1	-1	-1	1	1	-1	1	5.427 3	58.60	5.461 0	58.97
3	1	1	-1	1	1	-1	-1	-1	1	4.820 2	56.59	4.856 9	57.20
4	-1	1	1	-1	1	-1	-1	1	1	4.027 6	51.38	4.146 9	52.97
5	1	-1	-1	-1	1	1	-1	1	-1	4.394 4	56.41	4.487 1	57.70
6	1	1	1	-1	1	1	1	-1	-1	4.047 2	51.51	4.190 7	53.23
7	-1	1	1	1	-1	1	-1	1	-1	5.367 1	56.87	5.420 5	57.63
8	-1	-1	1	1	1	-1	1	-1	-1	1.137 9	25.47	1.345 8	30.03
9	1	-1	1	-1	-1	-1	1	1	1	3.325 5	52.75	3.395 3	54.16
10	1	1	-1	1	-1	-1	1	1	-1	5.418 6	58.41	5.450 0	58.87
11	-1	-1	-1	-1	-1	-1	-1	-1	-1	3.835 2	50.16	3.873 3	51.12
12	1	-1	1	1	-1	1	-1	-1	1	3.433 7	49.65	3.539 4	51.05

Table 3. Plackett-Burman design parameters and results

编号 Number	参数Parameters					熔盐Molten salt		水Water
编号 Number	$b_{2}$	$φ$	$β_{B 2}$	$a_{3}$	$D_{1}$	$H_{s a l t}$ / m	$η_{s a l t}$ / %	$H_{w a t e r}$ / m	$η_{w a t e r}$ / %
1	0	-1	0	1	0	5.107 0	59.55	5.133 3	60.07
2	0	0	-1	0	-1	4.747 9	58.96	4.801 3	59.87
3	0	0	1	-1	0	5.261 9	57.38	5.336 6	58.23
4	0	-1	0	0	1	5.465 2	60.27	5.478 3	60.76
5	1	1	0	0	0	5.347 5	58.04	5.396 8	58.85
6	0	0	-1	0	1	4.906 7	60.34	4.988 5	60.85
7	-1	0	0	-1	0	4.239 1	54.39	4.283 2	55.22
8	0	1	0	-1	0	4.796 4	55.91	4.878 3	56.96
9	-1	0	0	0	-1	4.025 3	54.41	4.108 4	55.65
10	0	1	-1	0	0	4.520 0	58.25	4.585 5	59.34
11	1	0	0	-1	0	5.677 9	58.24	5.700 6	58.86
12	0	-1	-1	0	0	5.156 1	60.60	5.182 5	61.16
13	0	1	0	1	0	4.493 1	56.81	4.561 7	57.73
14	0	1	0	0	-1	4.507 9	55.67	4.606 4	56.94
15	0	0	0	1	-1	4.688 2	57.20	4.752 0	58.06
16	0	0	-1	-1	0	4.908 9	57.87	4.943 2	58.61
17	1	0	1	0	0	5.641 6	58.24	5.667 4	58.82
18	0	0	0	0	0	5.150 5	59.49	5.190 3	60.25
19	0	-1	1	0	0	5.463 6	59.33	5.487 0	59.86
20	0	0	1	0	-1	5.060 1	57.43	5.125 7	58.36
21	0	0	0	0	0	5.150 5	59.49	5.190 3	60.25
22	0	0	0	0	0	5.150 5	59.49	5.190 3	60.25
23	0	0	0	0	0	5.150 5	59.49	5.190 3	60.25
24	0	0	0	0	0	5.150 5	59.49	5.190 3	60.25
25	0	0	0	0	0	5.150 5	59.49	5.190 3	60.25
26	0	0	0	1	1	4.999 3	59.56	5.031 1	60.14
27	-1	0	0	1	0	4.146 0	56.68	4.255 9	57.85
28	-1	0	0	0	1	4.538 0	58.58	4.585 2	59.42
29	1	0	0	0	1	5.631 6	59.28	5.656 2	59.81
30	0	0	0	-1	1	5.310 7	58.78	5.330 8	59.27
31	0	-1	0	0	-1	5.314 6	59.76	5.347 7	60.42
32	0	-1	0	-1	0	5.469 7	58.91	5.502 8	59.44
33	0	0	1	1	0	4.893 1	58.14	5.020 2	58.79
34	-1	0	-1	0	0	3.922 5	56.79	3.974 9	57.92
35	1	-1	0	0	0	5.707 4	58.45	5.692 1	58.40
36	0	1	1	0	0	4.838 1	56.92	4.923 5	58.04
37	1	0	0	0	-1	5.553 6	58.86	5.580 2	59.41
38	0	0	0	-1	-1	5.057 4	56.93	5.104 9	57.62
39	-1	0	1	0	0	4.484 0	57.18	4.559 8	58.22
40	0	1	0	0	1	4.929 3	58.66	4.987 8	59.57
41	1	0	-1	0	0	5.423 4	59.39	5.444 8	59.89
42	-1	1	0	0	0	3.881 3	55.56	3.872 5	55.06
43	0	0	-1	1	0	4.691 2	59.41	4.728 2	60.14
44	0	0	1	0	1	5.362 4	59.31	5.388 6	59.89
45	-1	-1	0	0	0	4.802 9	60.57	4.857 9	61.73
46	1	0	0	1	0	5.347 9	58.56	5.385 7	59.16