Design and optimization of the cooling duct system for the battery pack of a certain container energy storage

doi:10.19799/j.cnki.2095-4239.2020.0195

Abstract

Abstract:

This study takes a certain type of container energy storage system as the research object. A personalized uniform air supply scheme in the form of "main duct + riser" is proposed for the energy storage battery packs on the left and right sides of the container. Based on the computational fluid dynamics technology, the flow field characteristics of the whole duct are analyzed, and the air characteristics and uniformity data of each outlet are obtained. Measures, such as adding deflectors and reducing the area of the air outlets, are used to optimize the structure of the cooling air ducts. Consequently, a good air uniformity is obtained. The results show that the flow field uniformity is determined by the deflectors added at the corner of the main air duct inlet, at the inlet of each riser, and under the six air outlets at the upper part of each riser, thereby making the dispersion coefficient of the area-weighted average velocity in the vertical direction of each air outlet of the left cooling air duct decrease from 0.837 to 0.074 and that of the right cooling air duct decrease from 0.867 to 0.059.

Key words: container, energy storage battery, cooling air duct, numerical simulation, air duct optimization

CLC Number:

TB 21

Yitao ZOU, Houju PEI, Hong SHI, Xinlong ZHU, Kaijie YANG, Junyi WANG. Design and optimization of the cooling duct system for the battery pack of a certain container energy storage[J]. Energy Storage Science and Technology, 2020, 9(6): 1864-1871.

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References 9

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序号	网格数量	平均出风速度/m·s^-1
1	92万	0.642
2	127万	0.579
3	190万	0.598
4	245万	0.596

出风口编号	立管编号
出风口编号	1	2	3	4	5	6	7	8
1	0.286	0.375	0.124	-0.068	-0.324	-0.538	-0.581	-0.085
2	0.562	0.643	0.469	0.090	-0.111	0.201	0.117	0.442
3	0.549	0.655	0.399	0.335	0.424	0.438	0.394	0.464
4	0.486	0.745	0.504	0.536	0.370	0.369	0.298	0.633
5	0.598	0.611	0.606	0.578	0.527	0.403	0.500	0.513
6	0.467	0.654	0.501	0.473	0.408	0.424	0.564	0.594
7	0.553	0.380	0.393	0.563	0.454	0.626	0.575	0.410
8	0.629	0.367	0.405	0.488	0.490	0.580	0.586	0.496
9	1.121	0.938	0.965	0.818	0.947	1.070	1.178	0.755
10	1.443	1.719	1.913	1.998	2.126	1.875	1.670	1.657

出风口编号	立管编号
出风口编号	1	2	3	4	5	6
1	0.403	0.445	-0.208	-0.466	-0.397	0.064
2	0.541	0.654	0.335	0.453	0.381	0.624
3	0.628	0.621	0.532	0.321	0.533	0.614
4	0.612	0.660	0.602	0.605	0.547	0.598
5	0.590	0.646	0.611	0.616	0.550	0.537
6	0.609	0.629	0.625	0.605	0.564	0.531
7	0.605	0.629	0.638	0.649	0.600	0.563
8	0.696	0.725	0.761	0.793	0.685	0.650
9	1.278	1.286	1.358	1.416	1.259	1.121
10	3.035	2.483	2.694	2.619	2.478	2.664

出风口编号	立管编号
出风口编号	1	2	3	4	5	6	7	8
1	4.571	4.395	4.407	4.376	4.426	4.207	3.741	3.537
2	4.530	4.176	4.247	4.222	4.284	4.212	3.855	3.726
3	4.423	4.139	4.132	4.086	4.182	4.043	3.814	3.627
4	4.327	4.115	4.105	4.033	4.151	3.981	3.796	3.629
5	4.170	4.028	3.978	3.886	4.031	3.845	3.673	3.484
6	4.151	4.022	3.919	3.825	3.984	3.803	3.623	3.378
7	4.330	4.105	4.035	3.958	4.138	3.944	3.732	3.455
8	4.484	4.305	4.196	4.108	4.288	4.091	3.870	3.590
9	4.640	4.537	4.396	4.279	4.482	4.320	4.040	3.775
10	3.803	4.458	4.692	4.514	3.711	3.741	4.303	3.804

出风口编号	立管编号
出风口编号	1	2	3	4	5	6
1	5.727	5.911	5.296	5.339	5.329	5.245
2	5.806	6.057	5.481	5.726	5.605	5.533
3	5.744	5.960	5.643	5.689	5.570	5.463
4	5.601	5.803	5.585	5.513	5.421	5.297
5	5.351	5.646	5.430	5.261	5.178	5.068
6	5.101	5.491	5.215	5.044	4.977	4.858
7	5.253	5.535	5.377	5.157	5.111	4.916
8	5.544	5.664	5.730	5.375	5.329	5.103
9	5.825	5.947	5.956	5.762	5.605	5.390
10	5.877	4.657	4.816	5.148	5.570	4.890