 Partial cycle operation of latent heat storage with finned tubesGeorg Scharinger-Urschitz, Paul Schwarzmayr, Heimo Walter and Markus Haider Applied Energy, 2020, vol. 280, issue C, No S0306261920313611 Abstract: This work examines a high temperature latent heat storage system, which could find use in future concentrated solar power and other combined heat and power plants. In contrast to lab-based fully charged or totally discharged states, partial load states will be the principal operation states in real-world applications. Hence, a closer look on the partial load states and the effective power rates are worthwhile for a successful implementation of this storage type. A vertical finned shell and tube heat exchanger pipe with a combination of transversal and longitudinal fins is applied. Sodium nitrate with a melting temperature of 306°C is used as phase change material and thermal oil serves as heat transfer fluid. Temperatures in the storage and the heat transfer fluid as well as the mass flow are measured for data analysis. The state of charge formulation is based on an enthalpy distribution function, where the latent heat of fusion is spread over a specific temperature range. Keywords: Thermal energy storage; Latent heat; Partial cycle; State of charge; Phase change materials (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:280:y:2020:i:c:s0306261920313611 Ordering information: This journal article can be ordered from DOI: 10.1016/j.apenergy.2020.115893 Access Statistics for this article Applied Energy is currently edited by J. Yan More articles in Applied Energy from Elsevier |
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