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Title: General volume sizing strategy for thermal storage system using phase change material for concentrated solar thermal power plant

Journal Article · · Applied Energy
 [1];  [1];  [1];  [2]
  1. Univ. of Arizona, Tucson, AZ (United States). Dept. of Aerospace and Mechanical Engineering
  2. Sandia National Lab. (SNL-CA), Livermore, CA (United States)

With an auxiliary large capacity thermal storage using phase change material (PCM), Concentrated Solar Power (CSP) is a promising technology for high efficiency solar energy utilization. In a thermal storage system, a dual-media thermal storage tank is typically adopted in industry for the purpose of reducing the use of the heat transfer fluid (HTF) which is usually expensive. While the sensible heat storage system (SHSS) has been well studied, a dual-media latent heat storage system (LHSS) still needs more attention and study. The volume sizing of the thermal storage tank, considering daily cyclic operations, is of particular significance. In this paper, a general volume sizing strategy for LHSS is proposed, based on an enthalpy-based 1D transient model. One example was presented to demonstrate how to apply this strategy to obtain an actual storage tank volume. With this volume, a LHSS can supply heat to a thermal power plant with the HTF at temperatures above a cutoff point during a desired 6 hours of operation. This general volume sizing strategy is believed to be of particular interest for the solar thermal power industry.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000; FC36-08GO18155
OSTI ID:
1185009
Alternate ID(s):
OSTI ID: 1247562
Report Number(s):
SAND-2014-20433J; 547765
Journal Information:
Applied Energy, Vol. 140, Issue C; ISSN 0306-2619
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 56 works
Citation information provided by
Web of Science

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Cited By (4)

Thermal Energy Storage in Solar Power Plants: A Review of the Materials, Associated Limitations, and Proposed Solutions journal October 2019
Optimized Salt Selection for Solar Thermal Latent Heat Energy Storage journal July 2018
Composites Enhance Heat Transfer in Paraffin/Melamine Resin Microencapsulated Phase Change Materials journal January 2016
Synthesis and Thermal Properties of Magnesium Sulfate Heptahydrate/Urea Resin as Thermal Energy Storage Micro-Encapsulated Phase Change Material journal August 2017

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