Round robin test on the measurement of the specific heat of solar salt

Belén Muñoz-Sánchez, Javier Nieto-Maestre, José González-Aguilar, José Enrique Julia, Nuria Navarrete, Abdessamad Faik, Thomas Bauer, Alexander Bonk, María Elena Navarro, Yulong Ding, Nerea Uranga, Elisabetta Veca, Salvatore Sau, Pau Giménez, Pierre García, Juan Ignacio Burgaleta

Research output: Contribution to conferencePaper

4 Citations (Scopus)

Abstract

Solar salt (SS), a well-known non-eutectic mixture of sodium nitrate (60% w/w) and potassium nitrate (40% w/w), is commonly used either as Thermal Energy Storage (TES) material (double tank technology) or Heat Transfer Fluid (HTF) (solar tower) in modern CSP plants worldwide. The specific heat (cp, kJ kg-1°C-1) of SS is a very important property in order to support the design of new CSP Plants or develop novel materials based on SS. A high scientific effort has been dedicated to perform a suitable thermophysical characterization of this material. However, there is still a great discrepancy among the cpvalues reported by different authors1. These differences may be due to either experimental errors (random or systematic) or divergences in the starting material (grade of purity, presence of impurities and/or water). In order to avoid the second source of uncertainty (the starting material), a Round Robin Test (RRT) was proposed starting from a common material. In this way, the different methods from each laboratory could be compared. The study should lay the foundations for the establishment of a systematic procedure for the measurement of the specific heat of this kind of materials. Nine institutions, research centers and companies, accepted the proposal and are contributing with their results. The initiative was organized within the Workshop SolarPACES Task III - Material activity.
Original languageEnglish
DOIs
Publication statusPublished - 27 Jun 2017
Event22nd International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2016 - Abu Dhabi, United Arab Emirates
Duration: 27 Jun 2017 → …

Conference

Conference22nd International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2016
CountryUnited Arab Emirates
CityAbu Dhabi
Period27/6/17 → …

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Muñoz-Sánchez, B., Nieto-Maestre, J., González-Aguilar, J., Julia, J. E., Navarrete, N., Faik, A., Bauer, T., Bonk, A., Navarro, M. E., Ding, Y., Uranga, N., Veca, E., Sau, S., Giménez, P., García, P., & Burgaleta, J. I. (2017). Round robin test on the measurement of the specific heat of solar salt. Paper presented at 22nd International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2016, Abu Dhabi, United Arab Emirates. https://doi.org/10.1063/1.4984438