Thermal performance and cost analysis of a multi-layered solid-PCM thermocline thermal energy storage for CSP tower plants
Zhao, BC; Cheng, MS; Liu, C; Dai, ZM; Dai, ZM (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
2016
发表期刊APPLIED ENERGY
ISSN0306-2619
卷号178页码:784-799
文章类型期刊论文
摘要Thermocline storage in packed-bed is taken into consideration for cost reduction of thermal energy storage (TES) system in concentrating solar power (CSP). With a novel packed-bed configuration proposed recently, multi-layered solid-PCM (MLSPCM) thermocline TES is regarded as a more cost-effective alternative for current TES due to its lower thermocline degradation, which results in a higher energy utilization during the cyclic operation of the system comparing to other thermocline TES patterns. Thermal performance of several MLSPCM thermocline TES system with specific packed-bed configurations have been numerically evaluated both on pilot and practical scale. In this work, transient thermal behaviors of charging and discharging process in a cyclic operating state of a practical scale MLSPCM thermocline TES is investigated using a modified one-dimensional dispersion-concentric (D-C) model, while a comprehensive cost model is adopted to estimate capital cost of TES system. The influence of packed-bed configuration on several evaluation indexes of system performance such as cyclic operating time duration, total capacity factor and capital cost per kW ht are explored based on parametric studies. Optimum design configurations are identified to minimize capital cost per kW ht on the specific operating requirements. A cost comparison among different thermocline TES patterns as well as the two-tank TES are presented. The results show that the MLSPCM thermocline TES with an optimum packed-bed configuration is more cost-competitive than the two tank TES and any other thermocline TES systems. Overall, this study illustrates a methodology for packed-bed configuration optimization of a practical-scale MLSPCM thermocline TES and provide a design reference on cost-effective TES system for current CSP tower plants. (C) 2016 Elsevier Ltd. All rights reserved.
关键词Concentrating Solar Power Thermal Energy Storage Encapsulated Phase Change Material Multi-layered Solid-pcm Thermocline Packed-bed Configuration Cost Optimization
DOI10.1016/j.apenergy.2016.06.034
收录类别SCI
语种英语
WOS记录号WOS:000382340700063
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/26662
专题中科院上海应用物理研究所2011-2018年
通讯作者Cheng, MS; Dai, ZM (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
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Zhao, BC,Cheng, MS,Liu, C,et al. Thermal performance and cost analysis of a multi-layered solid-PCM thermocline thermal energy storage for CSP tower plants[J]. APPLIED ENERGY,2016,178:784-799.
APA Zhao, BC,Cheng, MS,Liu, C,Dai, ZM,&Dai, ZM .(2016).Thermal performance and cost analysis of a multi-layered solid-PCM thermocline thermal energy storage for CSP tower plants.APPLIED ENERGY,178,784-799.
MLA Zhao, BC,et al."Thermal performance and cost analysis of a multi-layered solid-PCM thermocline thermal energy storage for CSP tower plants".APPLIED ENERGY 178(2016):784-799.
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