|
Title:
|
Phase Change Material Selection for Thermal Energy Storage at High Temperature Range between 210 ºC and 270 ºC
|
|
Author:
|
Maldonado, José Miguel; Fullana Puig, Margalida; Martín, Marc; Solé, Aran; Fernández, Ángel G.; Gracia Cuesta, Alvaro de; Cabeza, Luisa F.
|
|
Notes:
|
The improvement of thermal energy storage systems implemented in solar technologies increases not only their performance but also their dispatchability and competitiveness in the energy market. Latent heat thermal energy storage systems are one of those storing methods. Therefore, the need of finding the best materials for each application becomes an appealing research subject. The main goal of this paper is to find suitable and economically viable materials able to work as phase change material (PCM) within the temperature range of 210-270 ºC and endure daily loading and unloading processes in a system with Fresnel collector and an organic Rankine cycle (ORC). Twenty-six materials have been tested and characterized in terms of their thermophysical conditions, thermal and cycling stability, and health hazard. Two materials out of the 26 candidates achieved the last stage of the selection process. However, one of the two finalists would require an inert working atmosphere, which would highly increase the cost for the real scale application. This leads to a unique suitable material, solar salt (40 wt % KNO3/60 wt % NaNO3).
This work was partially funded by the European Union’s Horizon 2020 Research &
Innovation Programme under Grant Agreement 723596 with reference name Innova MicroSolar. This work
was partially funded by the Ministerio de Economía y Competitividad de España (ENE2015-64117-C5-1-R
(MINECO/FEDER) and ENE2015-64117-C5-3-R (MINECO/FEDER)). The authors would like to thank the Catalan
Government for the quality accreditation given to their research group (2017 SGR 1537). GREA is certified agent
TECNIO in the category of technology developers from the Government of Catalonia. José Miguel Maldonado
would like to thank the Spanish Government for his research fellowship (BES-2016-076554). Aran Solé would like
to thank Ministerio de Economía y Competitividad de España for Grant Juan de la Cierva, FJCI-2015-25741. Alvaro
de Gracia has received funding from the European Union’s Horizon 2020 research and innovation programme
under the Marie Sklodowska-Curie grant agreement No. 712949. Angel G. Fernández would like to acknowledge
the financial support provided by GIZ “Programa de pasantía en el extranjero en tecnologías de concentración
solar para investigadores” and CONICYT/FONDAP 15110019 “Solar Energy Research Center” SERC-Chile. |
|
Subject(s):
|
-Thermal energy storage (TES)
-Fresnel collector
-Thermal stability
-Cycling stability
-Thermophysical properties
-Health hazard
-Myo-inositol
-Solar salt
-Infrared spectroscopy (IR)
-Differential scanning calorimetry (DSC) |
|
Rights:
|
cc-by (c) Maldonado, José Miguel et al., 2018
http://creativecommons.org/licenses/by/4.0/es
|
|
Document type:
|
Article
Article - Published version |
|
Published by:
|
MDPI
|
|
Share:
|
|
