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Author Caceres, G.; Fullenkamp, K.; Montane, M.; Naplocha, K.; Dmitruk, A. pdf  doi
openurl 
  Title Encapsulated Nitrates Phase Change Material Selection for Use as Thermal Storage and Heat Transfer Materials at High Temperature in Concentrated Solar Power Plants Type
  Year 2017 Publication Energies Abbreviated Journal Energies  
  Volume 10 Issue 9 Pages 21 pp  
  Keywords EPCM; nitrates; thermal energy storage (TES); heat transfer materials; CSP  
  Abstract In the present paper, the finite element method is used to perform an exhaustive analysis of the thermal behavior of encapsulated phase change materials (EPCMs), which includes an assessment of several materials in order to identify the best combination of PCM and shell material in terms of thermal energy storage, heat transfer rate, cost of materials, limit of pressure that they can support and other criteria. It is possible to enhance the heat transfer rate without a considerable decrease of the thermal energy storage density, by increasing the thickness of the shell. In the first examination of thermomechanical coupling effects, the technical feasibility can be determined if the EPCM dimensions are designed considering the thermal expansion and the tensile strength limit of the materials. Moreover, when a proper EPCM shell material and PCM composition is used, and compared with the current storage methods of concentrated solar power (CSP) plants, the use of EPCM allows one to enhance significantly the thermal storage, reaching more than 1.25 GJ/m(3) of energy density.  
  Address [Caceres, Gustavo; Fullenkamp, Karina; Montane, Macarena] Univ Adolfo Ibanez, Fac Ingn & Ciencias, Ave Diagonal Las Torres 2640, Santiago 7941169, Chile, Email: gustavo.caceres@uai.cl;  
  Corporate Author Thesis  
  Publisher Mdpi Ag Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1996-1073 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000411225200074 Approved  
  Call Number UAI @ eduardo.moreno @ Serial 805  
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Author Fernandes, D.; Pitie, F.; Caceres, G.; Baeyens, J. pdf  doi
openurl 
  Title Thermal energy storage: “How previous findings determine current research priorities” Type
  Year 2012 Publication Energy Abbreviated Journal Energy  
  Volume 39 Issue 1 Pages 246-257  
  Keywords Thermal energy storage; Heat transfer enhancement; PCM; Metal foam; Energy storage; Composite materials  
  Abstract Thermal energy storage is an expanding field within the subject of renewable energy technologies. After a listing of the different possibilities available for energy storage, this paper provides a comparison of various materials for High Temperature Thermal Energy Storage (HTTS). Several attributes and needs of each solution are listed. One in particular is using the latent heat as one of the most efficient ways to store thermal energy. The mixture of phase change material (PCM) embedded in a metal foam is optimising the thermal properties of the material for latent heat energy storage. The results of previous studies show that mechanical and thermal properties of foam were extensively studied separately. This paper highlights the potential for an advanced study of thermo-mechanical properties of metal foams embedded with PCM. (c) 2012 Elsevier Ltd. All rights reserved.  
  Address [Pitie, F.] Univ Warwick, Sch Engn, Coventry CV8 1JE, W Midlands, England, Email: f.pitie@warwick.ac.uk  
  Corporate Author Thesis  
  Publisher Pergamon-Elsevier Science Ltd Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0360-5442 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000302386400028 Approved  
  Call Number UAI @ eduardo.moreno @ Serial 209  
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Author Zhang, H.L.; Baeyens, J.; Degreve, J.; Caceres, G.; Segal, R.; Pitie, F. pdf  doi
openurl 
  Title Latent heat storage with tubular-encapsulated phase change materials (PCMs) Type
  Year 2014 Publication Energy Abbreviated Journal Energy  
  Volume 76 Issue Pages 66-72  
  Keywords Heat storage; Latent heat; Phase change materials; Nitrate-PCM; Tube-encapsulation; Experiments  
  Abstract Heat capture and storage is important in both solar energy projects and in the recovery of waste heat from industrial processes. Whereas heat capture will mostly rely on the use of a heat carrier, the high efficiency heat storage needs to combine sensible and latent heat storage with phase change materials (PCMs) to provide a high energy density storage. The present paper briefly reviews energy developments and storage techniques, with special emphasis on thermal energy storage and the use of PCM. It thereafter illustrates first results obtained when encapsulating NaNO3/KNO3-PCM in an AISI 321 tube, as example of a storage application using a multi-tubular exchanger filled with PCM. To increase the effective thermal conductivity of the PCM, 2 inserts i.e. metallic foam and metallic sponge are also tested. Experimental discharging (cooling) rates are interpreted by both solving the unsteady-state conduction equation, and by using Comsol Multiphysics. Predictions and experimental temperature evolutions are in fair agreement, and the effect of the inserts is clearly reflected by the increased effective thermal conductivity of the insert-PCM composite. Application of Comsol to predict the mechanical behavior of the system, when melting and associated expansion increase the internal pressure, demonstrates that the pressure build-up is far below the Young's modulus of the AISI 321 encapsulation and that this shell will not crack (C) 2014 Elsevier Ltd. All rights reserved.  
  Address [Zhang, H. L.; Degreve, J.] Katholieke Univ Leuven, Dept Chem Engn, Chem & Biochem Proc Technol & Control Sect, B-3001 Heverlee, Belgium, Email: Huili.Zhang@cit.kuleuven.be  
  Corporate Author Thesis  
  Publisher Pergamon-Elsevier Science Ltd Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0360-5442 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000344444600009 Approved  
  Call Number UAI @ eduardo.moreno @ Serial 422  
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