Study for the energy efficiency improvement and certification of an industrial facility

Abstract

The present paper consists in the realization of the study of the energy certification of an existing building, to obtain the energy efficiency certificate and to propose changes in order to improve the energy efficiency of the building. Going into further detail about the structure of this paper, it has been divided into three basic parts. The first part consist in the introduction of the energy efficiency concept, while explaining the reasons that have led us to take measures and establish legislations in order to fight to improve the energy efficiency of buildings. In the second part of this study, it goes further in detail in explaining the methodology that have to be followed in order to obtain the energy certification of a buildings, and it is developed the resolution of the particular case study. In the resolution it is defined the building and its characteristics and is demonstrated how all the data have been implemented in the certification program (CE3X). The certification has been carried out by two different methodologies: the basic and the exhaustive. In the first one the default values that the program calculates were used, in order to determine the thermal properties of the enclosures. And in the second, these thermal properties have been estimated, using all the information available of how the building is made. Therefore, a comparison between these certifications has been made and conclusions were drawn. Finally, in the third part of the paper the energy efficiency classification obtained of the building with the exhaustive certification is evaluated, justifying and understanding the reasons why it has been obtained this classification. Therefore, improvements can be made in the building and in its facilities in order to improve the building’s classification and thereby propose ways to improve its energy efficiency.