Análisis de la influencia del coeficiente de transferencia de calor en la caracterización de la transmitancia térmica de fachadas con el método termométrico

David  Bienvenido-Huertas; Manuel Jesús  Carretero-Ayuso; Carlos E.  Rodríguez-Jiménez; David  Marín-García; Juan  Moyano

doi:10.3989/ic.82602

Authors

David Bienvenido-Huertas Departamento de Construcciones Arquitectónicas II, Universidad de Sevilla https://orcid.org/0000-0003-0716-8589
Manuel Jesús Carretero-Ayuso Fundación-Musaat y Universidad de Alcalá https://orcid.org/0000-0002-8082-8996
Carlos E. Rodríguez-Jiménez Departamento de Construcciones Arquitectónicas II, Universidad de Sevilla https://orcid.org/0000-0003-3792-3389
David Marín-García Departamento de Expresión Gráfica e Ingeniería en la Edificación, Universidad de Sevilla https://orcid.org/0000-0002-7652-5730
Juan Moyano Departamento de Expresión Gráfica e Ingeniería en la Edificación, Universidad de Sevilla https://orcid.org/0000-0002-2186-6159

DOI:

https://doi.org/10.3989/ic.82602

Keywords:

thermal transmittance, facades, thermometric method, heat transfer coefficient, test

Abstract

To assess the thermal transmittance of facades is one of the most important steps in energy audit work. For this, there is a wide variety of experimental methods. One of the most widely used methods is the thermometric method. However, there is a knowledge gap in relation to the data analysis approach. For this reason, in this study the feasibility of using different approaches to the method was analyzed. To do this, 20 façades were analyzed and 9 different formulations were proposed using approximations for the total heat transfer coefficient of the scientific literature. Likewise, two approaches to data analysis were evaluated (arithmetic mean of the instantaneous measurements, and the sum of the numerator and the denominator), as well as the data filtering necessary to apply. The results allowed determining the most suitable analysis configuration to apply the method.

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