Demonstration of EnergyNest thermal energy storage (TES) technology

Nils Hoivik, Christopher Greiner, Eva Bellido Tirado, Juan Barragan, Pål Bergan, Geir Skeie, Pablo Blanco, Nicolas Calvet

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

26 Scopus citations

Abstract

This paper presents the experimental results from the EnergyNest 2 × 500 kWhth thermal energy storage (TES) pilot system installed at Masdar Institute of Science & Technology Solar Platform. Measured data are shown and compared to simulations using a specially developed computer program to verify the stability and performance of the TES. The TES is based on a solid-state concrete storage medium (HEATCRETE®) with integrated steel tube heat exchangers cast into the concrete. The unique concrete recipe used in the TES has been developed in collaboration with Heidelberg Cement; this material has significantly higher thermal conductivity compared to regular concrete implying very effective heat transfer, at the same time being chemically stable up to 450 °C. The demonstrated and measured performance of the TES matches the predictions based on simulations, and proves the operational feasibility of the EnergyNest concrete-based TES. A further case study is analyzed where a large-scale TES system presented in this article is compared to two-tank indirect molten salt technology.

Original languageBritish English
Title of host publicationSolarPACES 2016
Subtitle of host publicationInternational Conference on Concentrating Solar Power and Chemical Energy Systems
ISBN (Electronic)9780735415225
DOIs
StatePublished - 27 Jun 2017
Event22nd International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2016 - Abu Dhabi, United Arab Emirates
Duration: 11 Oct 201614 Oct 2016

Publication series

NameAIP Conference Proceedings
Volume1850
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference22nd International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2016
Country/TerritoryUnited Arab Emirates
CityAbu Dhabi
Period11/10/1614/10/16

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