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

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 clas...

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Main Authors: Anti Hamburg, Targo Kalamees
Format: Article
Language:English
Published: MDPI AG 2018-11-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/11/11/3179
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author Anti Hamburg
Targo Kalamees
author_facet Anti Hamburg
Targo Kalamees
author_sort Anti Hamburg
collection DOAJ
description 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.
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spelling doaj.art-cef99077df9d41c3857208f62716fa2d2022-12-22T02:53:28ZengMDPI AGEnergies1996-10732018-11-011111317910.3390/en11113179en11113179The Influence of Energy Renovation on the Change of Indoor Temperature and Energy UseAnti Hamburg0Targo Kalamees1Nearly Zero Energy Research Group, Tallinn University of Technology, Tallinn 19086, EstoniaNearly Zero Energy Research Group, Tallinn University of Technology, Tallinn 19086, EstoniaThe 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.https://www.mdpi.com/1996-1073/11/11/3179indoor temperature after renovationelectricity useDHW energy useuser behaviorstandard use
spellingShingle Anti Hamburg
Targo Kalamees
The Influence of Energy Renovation on the Change of Indoor Temperature and Energy Use
Energies
indoor temperature after renovation
electricity use
DHW energy use
user behavior
standard use
title The Influence of Energy Renovation on the Change of Indoor Temperature and Energy Use
title_full The Influence of Energy Renovation on the Change of Indoor Temperature and Energy Use
title_fullStr The Influence of Energy Renovation on the Change of Indoor Temperature and Energy Use
title_full_unstemmed The Influence of Energy Renovation on the Change of Indoor Temperature and Energy Use
title_short The Influence of Energy Renovation on the Change of Indoor Temperature and Energy Use
title_sort influence of energy renovation on the change of indoor temperature and energy use
topic indoor temperature after renovation
electricity use
DHW energy use
user behavior
standard use
url https://www.mdpi.com/1996-1073/11/11/3179
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AT targokalamees theinfluenceofenergyrenovationonthechangeofindoortemperatureandenergyuse
AT antihamburg influenceofenergyrenovationonthechangeofindoortemperatureandenergyuse
AT targokalamees influenceofenergyrenovationonthechangeofindoortemperatureandenergyuse