Systematic Simplified Simulation Methodology for Deep Energy Retrofitting Towards Nze Targets Using Life Cycle Energy Assessment

José Sánchez Ramos, MCarmen Guerrero Delgado, Servando Álvarez Domínguez, José Luis Molina Félix, Francisco José Sánchez de la Flor and José Antonio Tenorio Ríos
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José Sánchez Ramos: Department of thermal machines and engines, University of Cadiz, 11001 Cadiz, Spain
MCarmen Guerrero Delgado: Department of energy engineering, University of Seville, 41004 Seville, Spain
Servando Álvarez Domínguez: Department of energy engineering, University of Seville, 41004 Seville, Spain
José Luis Molina Félix: Department of energy engineering, University of Seville, 41004 Seville, Spain
Francisco José Sánchez de la Flor: Department of thermal machines and engines, University of Cadiz, 11001 Cadiz, Spain
José Antonio Tenorio Ríos: Spanish National Research Council (CSIC), 28033 Madrid, Spain

Energies, 2019, vol. 12, issue 16, 1-27

Abstract: The reduction of energy consumption in the residential sector presents substantial potential through the implementation of energy efficiency improvement measures. Current trends involve the use of simulation tools which obtain the buildings’ energy performance to support the development of possible solutions to help reduce energy consumption. However, simulation tools demand considerable amounts of data regarding the buildings’ geometry, construction, and frequency of use. Additionally, the measured values tend to be different from the estimated values obtained with the use of energy simulation programs, an issue known as the ‘performance gap’. The proposed methodology provides a solution for both of the aforementioned problems, since the amount of data needed is considerably reduced and the results are calibrated using measured values. This new approach allows to find an optimal retrofitting project by life cycle energy assessment, in terms of cost and energy savings, for individual buildings as well as several blocks of buildings. Furthermore, the potential for implementation of the methodology is proven by obtaining a comprehensive energy rehabilitation plan for a residential building. The developed methodology provides highly accurate estimates of energy savings, directly linked to the buildings’ real energy needs, reducing the difference between the consumption measured and the predictions.

Keywords: life cycle analysis; feasibility analysis; near zero energy buildings; simplified building thermal modelling (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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