High temperature latent heat storage with a screw heat exchanger: Design of prototype

Verena Zipf, Anton Neuhäuser, Daniel Willert, Peter Nitz, Stefan Gschwander and Werner Platzer

Applied Energy, 2013, vol. 109, issue C, 462-469

Abstract: An important option for increasing the efficiency in Concentrated Solarthermal Power (CSP) is the development of systems generating steam directly in the solar field. To produce dispatchable and affordable electrical power, the integration of an efficient and economical thermal energy storage is an attractive option. To (dis)charge a storage with steam, latent heat storages are particularly suitable for the use with two-phase heat transfer media. Due to low heat conductivities of the phase change materials, the heat exchanger design is crucial. Up to now no latent storage is commercially deployed in CSP. A new latent storage approach is being developed at Fraunhofer ISE; a Screw Heat Exchanger (SHE) is employed for heat transfer. With a SHE, material can be transported during the phase change. With this innovative concept, the size of the heat transfer area and the storage capacity can be decoupled and it seems possible to develop an economically viable latent storage.

Keywords: Screw heat exchanger; Latent heat storage; High temperature storage; Phase change material (search for similar items in EconPapers)
Date: 2013
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (22)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0306261912008471
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:109:y:2013:i:c:p:462-469

Ordering information: This journal article can be ordered from
http://www.elsevier.com/wps/find/journaldescription.cws_home/405891/bibliographic
http://www.elsevier. ... 405891/bibliographic

DOI: 10.1016/j.apenergy.2012.11.044

Access Statistics for this article

Applied Energy is currently edited by J. Yan

More articles in Applied Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().