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Article

The Influence of Energy Renovation on the Change of Indoor Temperature and Energy Use

Nearly Zero Energy Research Group, Tallinn University of Technology, Tallinn 19086, Estonia
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Energies 2018, 11(11), 3179; https://doi.org/10.3390/en11113179
Received: 26 September 2018 / Revised: 8 November 2018 / Accepted: 12 November 2018 / Published: 16 November 2018
(This article belongs to the Special Issue Energy Performance and Indoor Climate Analysis in Buildings)
The aim of the renovation of apartment buildings is to lower the energy consumption of those buildings, mainly the heating energy consumption. There are few analyses regarding those other energy consumptions which are also related to the primary energy need for calculating the energy efficiency class, including the primary energy need of calculated heating, domestic hot water (DHW), and household electricity. Indoor temperature is directly connected with heating energy consumption, but it is not known yet how much it will change after renovation. One of the research issues relates to the change of electricity and DHW usage after renovation and to the question of whether this change is related to the users’ behavior or to changes to technical solutions. Thirty-five renovated apartment buildings have been analyzed in this study, where the data of indoor temperature, airflow, and energy consumption for DHW with and without circulation and electricity use in apartments and common rooms has been measured. During research, it turned out that the usage of DHW without circulation and the usage of household electricity do not change after renovation. Yet there is a major increase in indoor temperature and DHW energy use in buildings that did not have circulation before the renovation. In addition, a small increase in the use of electricity in common areas was discovered. This study will offer changes in calculations for the energy efficiency number. View Full-Text
Keywords: indoor temperature after renovation; electricity use; DHW energy use; user behavior; standard use indoor temperature after renovation; electricity use; DHW energy use; user behavior; standard use
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MDPI and ACS Style

Hamburg, A.; Kalamees, T. The Influence of Energy Renovation on the Change of Indoor Temperature and Energy Use. Energies 2018, 11, 3179. https://doi.org/10.3390/en11113179

AMA Style

Hamburg A, Kalamees T. The Influence of Energy Renovation on the Change of Indoor Temperature and Energy Use. Energies. 2018; 11(11):3179. https://doi.org/10.3390/en11113179

Chicago/Turabian Style

Hamburg, Anti, and Targo Kalamees. 2018. "The Influence of Energy Renovation on the Change of Indoor Temperature and Energy Use" Energies 11, no. 11: 3179. https://doi.org/10.3390/en11113179

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