61314 20220817094614.0 doi 10.1088/0957-0233/26/12/125001 sideral 93214 ART-2015-93214 eng Mazo, J. (orcid)0000-0001-7631-8507 A theoretical study on the accuracy of the T-history method for enthalpy-temperature curve measurement: Analysis of the influence of thermal gradients inside T-history samples 2015 Access copy available to the general public Unrestricted The present work analyses the effect of radial thermal gradients inside T-history samples on the enthalpy temperature curve measurement. A conduction heat transfer model has been utilized for this purpose. Some expressions have been obtained that relate the main dimensionless numbers of the experiments with the deviations in specific heat capacity, phase change enthalpy and phase change temperature estimations. Although these relations can only be strictly applied to solid materials (e.g. measurements of shape stabilized phase change materials), they can provide some useful and conservative bounds for the deviations of the T-history method. Biot numbers emerge as the most relevant dimensionless parameters in the accuracy of the specific heat capacity and phase change enthalpy estimation whereas this model predicts a negligible influence of the temperature levels used for the experiments or the Stefan number. info:eu-repo/grantAgreement/ES/MICINN/ENE2014-57262-R info:eu-repo/grantAgreement/ES/MICINN/ENE2011-22722 info:eu-repo/grantAgreement/ES/MICINN/ENE2011-28269-C03-01 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 1.492 2015 ENGINEERING, MULTIDISCIPLINARY 26 / 85 = 0.306 2015 Q2 T1 INSTRUMENTS & INSTRUMENTATION 25 / 56 = 0.446 2015 Q2 T2 0.704 2015 Engineering (miscellaneous) 2015 Q1 Instrumentation 2015 Q1 Applied Mathematics 2015 Q2 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Delgado, M. (orcid)0000-0002-8015-4469 Lázaro, A. Universidad de Zaragoza (orcid)0000-0001-7360-4188 Dolado, P. (orcid)0000-0002-2161-3362 Peñalosa, C. Universidad de Zaragoza (orcid)0000-0002-9500-974X Marín, J.M. Universidad de Zaragoza (orcid)0000-0002-2463-7271 Zalba, B. Universidad de Zaragoza (orcid)0000-0002-6101-580X 5004 X Universidad de Zaragoza Dpto. Ingeniería Mecánica Proy. investigacion HJA 5004 590 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Máquinas y Motores Térmi. 26, 12 (2015), 125001 [10 pp.] Meas. sci. technol. MEASUREMENT SCIENCE & TECHNOLOGY 0957-0233 473249 http://zaguan.unizar.es/record/61314/files/texto_completo.pdf Postprint 60783 http://zaguan.unizar.es/record/61314/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:61314 articulos driver 2022-08-17-09:33:01 ARTICLE