168555 20260211123807.0 doi 10.1016/j.applthermaleng.2015.07.047 sideral 91578 ART-2015-91578 eng Mazo, J. (orcid)0000-0001-7631-8507 Uncertainty propagation and sensitivity analysis of thermo-physical properties of phase change materials (PCM) in the energy demand calculations of a test cell with passive latent thermal storage 2015 In this work uncertainty propagation and sensitivity analyses have been applied to a case study of an application where PCM is integrated into the envelope of a test cell. The aim of the study is to quantify the influence of the uncertainties associated with the measurements of the thermo-physical properties of PCM on the results of the annual energy consumption. For this purpose, EnergyPlus has been used for the building energy simulation and a Monte Carlo based method has been chosen for the uncertainty and sensitivity analysis. Considering realistic uncertainty ranges for PCM thermo-physical properties, a significant uncertainty of savings on cooling energy demand has been calculated (approximately 10%). Phase change temperature and thermal conductivity have been identified as the most influential input parameters whereas phase change enthalpy is of secondary importance. A method has been proposed in order to calculate a combination of admissible uncertainties for the input variables that reduces output uncertainty to a required value. The method can be used if input variables and the behaviour of the model comply with certain conditions. For the case study, a maximum tolerance for the error of measurements of phase change temperature and thermal conductivity of ±0.3 °C and ±8% respectively is necessary to reduce the uncertainty of savings on cooling energy demand to 5% Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/MICINN/ENE2011-28269-C03-01 info:eu-repo/grantAgreement/ES/MICINN/ENE2011-28269-C03-03 info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es 3.043 2015 ENGINEERING, MECHANICAL 7 / 131 = 0.053 2015 Q1 T1 THERMODYNAMICS 6 / 57 = 0.105 2015 Q1 T1 MECHANICS 7 / 135 = 0.052 2015 Q1 T1 ENERGY & FUELS 30 / 88 = 0.341 2015 Q2 T2 1.683 2015 Industrial and Manufacturing Engineering 2015 Q1 Energy Engineering and Power Technology 2015 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion El Badry, A. T. Carreras, J. Delgado, M. (orcid)0000-0002-8015-4469 Boer, D. Zalba, B. Universidad de Zaragoza (orcid)0000-0002-6101-580X 5004 590 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Máquinas y Motores Térmi. 90 (2015), 596-608 Appl. therm. eng. Applied Thermal Engineering 1359-4311 2231637 http://zaguan.unizar.es/record/168555/files/texto_completo.pdf Postprint 1492919 http://zaguan.unizar.es/record/168555/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:168555 articulos driver 2026-02-11-10:27:04 ARTICLE