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Experimental study on the thermal performance of a novel physically separated chilled water storage tank
Sun, Qin1,4,5; Wang, Hao1,2; Dong, Kaijun1,4,5; Lv, Tai3; Kang, Zhibo1,3
2021-08-01
发表期刊JOURNAL OF ENERGY STORAGE
卷号40页码:9
通讯作者Dong, Kaijun(dongkj@ms.giec.ac.cn)
摘要Naturally stratified chilled-water storage is widely used to offset the peak electrical demand caused by airconditioning, but the mixing between cold and warm water greatly influences its thermal performance, especially for a low aspect ratio tank. In this study, a novel physically separated chilled water storage tank is proposed to take place traditional membrane tanks. The thermal performance of this novel tank is evaluated by static and dynamic experiments. The temperature distribution, outlet temperature, figure of merit (FOM1/2/FOM), and percent cold recoverable (PCR) are analyzed when the cold water temperature is approximately 2 degrees C and 4 degrees C, and the temperature difference ranges from 7.91 to 13.86 degrees C. The results demonstrate the excellent thermal performance of the novel tank under a large temperature difference. Compared with conventional temperature conditions, the stability of the outlet temperature under low-temperature conditions is better during the discharging process with the dimensionless temperature increasing by 10% at the end of the process. The full-cycle FOM increases significantly and the PCR decreases slightly with increasing temperature difference. When the FOM reaches its maximum of 93.2%, the PCR exceeds 91%. Therefore, this research work exhibits great application potential of this novel tank due to its ability to improve the thermal performance for a low aspect ratio tank, which provides a new direction for chilled water storage tank design.
关键词Cold thermal storage Physical separation Large temperature difference Performance improvement
DOI10.1016/j.est.2021.102628
关键词[WOS]STRATIFICATION
收录类别SCI
语种英语
资助项目Science and Technology Planning Project of Guangzhou, China[201902010031] ; International Cooperation Project of Guangzhou Development District, China[2019GH01] ; Foundation of CAS Key Laboratory of Renewable Energy[E129860101]
WOS研究方向Energy & Fuels
项目资助者Science and Technology Planning Project of Guangzhou, China ; International Cooperation Project of Guangzhou Development District, China ; Foundation of CAS Key Laboratory of Renewable Energy
WOS类目Energy & Fuels
WOS记录号WOS:000674580400004
出版者ELSEVIER
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/33518
专题中国科学院广州能源研究所
通讯作者Dong, Kaijun
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
2.North China Elect Power Univ, Beijing 102206, Peoples R China
3.Northeast Elect Power Univ, Jilin 132012, Jilin, Peoples R China
4.CAS Key Lab Renewable Energy, Beijing, Peoples R China
5.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou, Peoples R China
第一作者单位中国科学院广州能源研究所
推荐引用方式
GB/T 7714
Sun, Qin,Wang, Hao,Dong, Kaijun,et al. Experimental study on the thermal performance of a novel physically separated chilled water storage tank[J]. JOURNAL OF ENERGY STORAGE,2021,40:9.
APA Sun, Qin,Wang, Hao,Dong, Kaijun,Lv, Tai,&Kang, Zhibo.(2021).Experimental study on the thermal performance of a novel physically separated chilled water storage tank.JOURNAL OF ENERGY STORAGE,40,9.
MLA Sun, Qin,et al."Experimental study on the thermal performance of a novel physically separated chilled water storage tank".JOURNAL OF ENERGY STORAGE 40(2021):9.
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