RT Journal Article
T1 A precise method to measure the specific heat of solar salt-based nanofluids
A1 Muñoz-Sánchez, Belén
A1 Nieto-Maestre, Javier
A1 Imbuluzqueta, Gorka
A1 Marañón, Izaskun
A1 Iparraguirre-Torres, Iñigo
A1 García-Romero, Ana
AB A novel material has been developed for thermal energy storage at high temperatures (>300 °C) with enhanced thermal transport and storage properties. It is considered more efficient than the current molten salts used in the concentrated solar power plants. It is composed of an inorganic salt doped with a small percentage of nanoparticles (NPs), which are claimed to increase the specific heat compared with that of the raw salt. Thus, a precise determination of this thermal property is essential to perceive this enhancement. The specific heat of solar salt (SS) and a mixture of SS with 1 mass% of alumina NPs have been measured by the differential scanning calorimetry (DSC) technique. An isothermal procedure based on modulated DSC has been established to perform the measurements. The influence of the type of crucible, the amount of sample inside the crucible and the presence of moisture on the scattering of the data has been studied. Reliable results with a low uncertainty (<10%) were achieved by the use of T-zero aluminium hermetic crucibles, the mass increment of analysed sample (30 mg) and the absence of moisture inside the crucibles.
SN 1388-6150
YR 2017
FD 2017-08-01
LK https://hdl.handle.net/11556/4150
UL https://hdl.handle.net/11556/4150
LA eng
NO Muñoz-Sánchez , B , Nieto-Maestre , J , Imbuluzqueta , G , Marañón , I , Iparraguirre-Torres , I & García-Romero , A 2017 , ' A precise method to measure the specific heat of solar salt-based nanofluids ' , Journal of Thermal Analysis and Calorimetry , vol. 129 , no. 2 , pp. 905-914 . https://doi.org/10.1007/s10973-017-6272-x
NO Publisher Copyright: © 2017, Akadémiai Kiadó, Budapest, Hungary.
NO The authors would like to thank Izaskun Marañón and Gorka Imbuluzqueta for performing the DSC measurements and Tecnalia Research Corporation, where the experimental work has been carried out. This work was supported by the University of the Basque Country UPV/EHU (Zabalduz 2012 research program, Ph.D. thesis of Belén Muñoz-Sánchez); the Basque Government (Etortek 2014 project on thermal storage) and the MInisterio de Economía y Competitividad, MINECO (ENE2015-71083-R).
DS TECNALIA Publications
RD 30 jul 2024