Long-term assessment of the thermal stability of sodium nitrate-urea eutectic phase change material
dc.contributor.author | Quant Colón, Laura Marcela | |
dc.contributor.author | Diarce Belloso, Gonzalo | |
dc.contributor.author | Bouzas Vila, Lourdes | |
dc.contributor.author | Bedecarrats, Jean-Pierre | |
dc.contributor.author | García Romero, Ane Miren | |
dc.date.accessioned | 2021-11-09T11:33:38Z | |
dc.date.available | 2021-11-09T11:33:38Z | |
dc.date.issued | 2021-09-15 | |
dc.identifier.citation | Solar Energy Materials and Solar Cells 230 : (2021) // Article ID 111261 | es_ES |
dc.identifier.issn | 0927-0248 | |
dc.identifier.issn | 1879-3398 | |
dc.identifier.uri | http://hdl.handle.net/10810/53718 | |
dc.description.abstract | The eutectic mixture formed by urea and sodium nitrate can be an interesting candidate for use as a phase change material for thermal energy storage in space heating and domestic hot water applications. It shows a melting point of 85 °C, a melting enthalpy of 172 J/g and a price around 0.9 €/kg. However, the thermal stability of the mixture is a great concern for this application. A preliminary evaluation of the thermal stability was performed and previously reported by the authors. It consisted of an accelerated thermal cycling test with 210 thermal cycles and the material showed a stable behavior. Nevertheless, the long-term stability of urea in the liquid state at temperatures below 100 °C is uncertain and requires a specific study. The main objective of the present work is to evaluate the long-term thermal stability of the mixture when it is exposed to long periods of use under conditions representative of actual applications, by means of analyzing the thermal and compositional behavior of samples remaining at 100 °C for several periods up to one year. A methodology is proposed, which intends to isolate the thermal degradation phenomenon from others, such as phase segregation, supercooling, and polymorphism, that can be introduced by thermal-cycling. It also aims to be more representative of the actual application than the accelerated thermal cycling approach. | es_ES |
dc.description.sponsorship | The authors would like to acknowledge the Ramon Areces Foundation for funding and the Spanish Ministry of Science, Innovation and Universities (MICINN) through the Sweet-TES research project (RTI2018-099557-B-C22). The author Laura Quant wants to thank the financial support of the University of the Basque Country UPV/EHU, through the Personnel Research Training Program to carry out PhD thesis in cotutelle between the University of the Basque country and the Universit ' e de Pau et des Pays de l'Adour (2016 call). Research efforts in this field are also coordinated through the IEA ES Annex 33/SHC Task 58. Finally, the authors greatly thank the technical and human support provided by SGiker of UPV/EHU; especially to Aitor Larranaga, Mamen Sampedro and Alfredo Sarmiento for their valued help. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/RTI2018-099557-B-C22 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | * |
dc.subject | pcm | es_ES |
dc.subject | urea | es_ES |
dc.subject | sodium nitrate | es_ES |
dc.subject | eutectic mixture | es_ES |
dc.subject | thermal energy storage | es_ES |
dc.subject | thermal stability | es_ES |
dc.subject | energy-storage | es_ES |
dc.subject | decomposition | es_ES |
dc.subject | products | es_ES |
dc.subject | biuret | es_ES |
dc.subject | equilibria | es_ES |
dc.subject | pyrolysis | es_ES |
dc.subject | mixtures | es_ES |
dc.subject | salt | es_ES |
dc.title | Long-term assessment of the thermal stability of sodium nitrate-urea eutectic phase change material | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | Elsevier has partnered with Copyright Clearance Center's RightsLink service to offer a variety of options for reusing this content. Note: This article is available under the Creative Commons CC-BY-NC-ND license and permits non-commercial use of the work as published, without adaptation or alteration provided the work is fully attributed. | es_ES |
dc.rights.holder | Atribución-NoComercial-SinDerivadas 3.0 España | * |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S0927024821003044?via%3Dihub#! | es_ES |
dc.identifier.doi | 10.1016/j.solmat.2021.111261 | |
dc.departamentoes | Ingeniería Energética | es_ES |
dc.departamentoes | Ingeniería Minera y Metalúrgica y Ciencia de los Materiales | es_ES |
dc.departamentoeu | Energia Ingenieritza | es_ES |
dc.departamentoeu | Meatze eta metalurgia ingeniaritza materialen zientzia | es_ES |
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Note: This article is available under the Creative Commons CC-BY-NC-ND license and permits non-commercial use of the work as published, without adaptation or alteration provided the work is fully attributed.