Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/79977
Title: Thermophysical characterization of commercial paraffin-based PCMs for low temperature thermal energy storage applications
Authors: Matias, T. 
Soares, N. 
Campos-Gonçalves, I. 
Costa, J.J. 
Simões, P.N. 
Durães, L. 
Keywords: PCMs; Thermophysical characterization; Modulated DSC; TPS method; Specific heat; Thermal conductivity
Issue Date: Jun-2018
Keywords: PCMs; Thermophysical characterization; Modulated DSC; TPS method; Specific heat; Thermal conductivity
Issue Date: Jun-2018
Citation: T. Matias, N. Soares, I. Campos-Gonçalves, J.J. Costa, P.N. Simões, L. Durães, "Thermophysical characterization of commercial paraffin-based PCMs for low temperature thermal energy storage applications", Proc. of the Seminar PCMs4Buildings – PCMs: Thermophysical characterization and buildings' applications, Universidade de Coimbra, Coimbra, Portugal, 14-15 June 2018, pp. 10-12.
Project: POCI-01-0145-FEDER-016750 | PTDC/EMS-ENE/6079/2014 
Abstract: Reliable data on the thermophysical properties of commercial Phase Change Materials (PCMs) is fundamental for the design and modelling of low temperature Thermal Energy Storage (TES) applications. However, data provided by manufacturers is often insufficient and uncertain. In this work, an experimental study was conducted to determine the relevant thermophysical properties of some commercial paraffin-based PCMs, providing a valuable and useful database for ongoing and future studies. Two types of PCMs were evaluated, both microencapsulated and in free-form. Latent heat of fusion, specific heat and melting/solidification temperatures were measured by Modulated Differential Scanning Calorimetry (MDSC). High-resolution modulated thermogravimetric analysis (HiRes-MTGA) was also used to evaluate the thermal stability of the tested PCMs. For the thermal conductivity/diffusivity, the Transient Plane Source (TPS) method (HotDisk) was used. The importance of eliminating phase-transition interferences in the measurements and the effect of the polymer shell in the properties of microencapsulated PCMs were analysed. Properties of both type of PCMs were compared, for the same paraffin composition.
URI: http://hdl.handle.net/10316/79977
Rights: openAccess
Appears in Collections:FCTUC Eng.Mecânica - Artigos e Resumos em Livros de Actas

Files in This Item:
File Description SizeFormat
2.pdf268.21 kBAdobe PDFView/Open
Show full item record

Page view(s)

71
checked on Aug 20, 2019

Download(s)

40
checked on Aug 20, 2019

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.