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Urban Residential Energy Efficiency - Technology Optimization and Behaviour Change: Case study on social housing in Darmstadt, Germany

Zheng, Jie (2019):
Urban Residential Energy Efficiency - Technology Optimization and Behaviour Change: Case study on social housing in Darmstadt, Germany.
Darmstadt, Technische Universität, ISBN 9783942068291,
[Online-Edition: https://tuprints.ulb.tu-darmstadt.de/9455],
[Ph.D. Thesis]

Abstract

Energy efficiency has been the core challenge and task of research in the building sector and strongly driven by real estate, resource management, energy policy and consumers with various socio-economic backgrounds. In Germany, the average share of final energy for residential sector accounted for 26% of total final energy consumption (BMWi, 2017), which was almost double than the worldwide average level with 12.6% (EIA, 2017).

Existing building energy analysing tools have achieved a high dynamic dimension of energy consumption through accurate analysis of the technical integration of building energy system. However, the impact of occupant interactions with the control of indoor environmental quality on building energy performance is underestimated. Residential energy consumption varies with physical differences in the size of dwellings, type of properties, age of residential buildings and efficiency of domestic electrical appliances and energy equipment, climate and energy prices, as well as occupant behaviour, in particular, which are affected by individual socio-economic background. A balance between reducing energy bills and without sacrifices of living comfort is pursued by all stakeholders related to residential energy use. Though building energy-saving technologies, low-energy building concepts and building energy management system have reached to a mature degree, a gap between the designed and real residential energy consumption appears often.

This research work considered occupant behaviour as an important influencing factor in controlling indoor environmental quality and energy consumption. A case study on en-ergy consumption of German social housing was discussed. The process of collecting occupant behaviour data and the technological support were introduced, which were based on projects about social housing energy efficiency and those data works as basic input for further simulation process. A new concept was proposed through integrating occupant behaviour into the conventional Retro-commissioning methodology, so as to explore the energy conservation potential of the interaction between occupant behaviour and building energy system.

IDA ICE as the modelling tool in this work was simulating the energy consumption of the total building, and the individual energy consumption and indoor air quality of each dwelling, as well as the living comfort indices respectively. A series of comparison on those simulation results among different dwellings with different occupancy rate and using schedules of energy-related appliances as well as other potential influencing factors were presented to prove the synergic effect of objective (technics) and subjective (occupants) impacts on home energy consumption and indoor environmental quality.

Item Type: Ph.D. Thesis
Erschienen: 2019
Creators: Zheng, Jie
Title: Urban Residential Energy Efficiency - Technology Optimization and Behaviour Change: Case study on social housing in Darmstadt, Germany
Language: English
Abstract:

Energy efficiency has been the core challenge and task of research in the building sector and strongly driven by real estate, resource management, energy policy and consumers with various socio-economic backgrounds. In Germany, the average share of final energy for residential sector accounted for 26% of total final energy consumption (BMWi, 2017), which was almost double than the worldwide average level with 12.6% (EIA, 2017).

Existing building energy analysing tools have achieved a high dynamic dimension of energy consumption through accurate analysis of the technical integration of building energy system. However, the impact of occupant interactions with the control of indoor environmental quality on building energy performance is underestimated. Residential energy consumption varies with physical differences in the size of dwellings, type of properties, age of residential buildings and efficiency of domestic electrical appliances and energy equipment, climate and energy prices, as well as occupant behaviour, in particular, which are affected by individual socio-economic background. A balance between reducing energy bills and without sacrifices of living comfort is pursued by all stakeholders related to residential energy use. Though building energy-saving technologies, low-energy building concepts and building energy management system have reached to a mature degree, a gap between the designed and real residential energy consumption appears often.

This research work considered occupant behaviour as an important influencing factor in controlling indoor environmental quality and energy consumption. A case study on en-ergy consumption of German social housing was discussed. The process of collecting occupant behaviour data and the technological support were introduced, which were based on projects about social housing energy efficiency and those data works as basic input for further simulation process. A new concept was proposed through integrating occupant behaviour into the conventional Retro-commissioning methodology, so as to explore the energy conservation potential of the interaction between occupant behaviour and building energy system.

IDA ICE as the modelling tool in this work was simulating the energy consumption of the total building, and the individual energy consumption and indoor air quality of each dwelling, as well as the living comfort indices respectively. A series of comparison on those simulation results among different dwellings with different occupancy rate and using schedules of energy-related appliances as well as other potential influencing factors were presented to prove the synergic effect of objective (technics) and subjective (occupants) impacts on home energy consumption and indoor environmental quality.

Place of Publication: Darmstadt
ISBN: 9783942068291
Divisions: 13 Department of Civil and Environmental Engineering Sciences
13 Department of Civil and Environmental Engineering Sciences > Institute and Laboratory of Geotechnics
Exzellenzinitiative
Exzellenzinitiative > Graduate Schools
Exzellenzinitiative > Graduate Schools > Graduate School of Energy Science and Engineering (ESE)
Date Deposited: 24 Nov 2019 20:55
Official URL: https://tuprints.ulb.tu-darmstadt.de/9455
URN: urn:nbn:de:tuda-tuprints-94557
Referees: Katzenbach, Prof. Dr. Rolf and Schneider, Prof. Dr. Jens
Refereed / Verteidigung / mdl. Prüfung: 13 August 2019
Alternative Abstract:
Alternative abstract Language
Als zentrale Herausforderung und Aufgabe der Forschung im Bausektor wird die Energieeffizienz stark von Immobilien, Ressourcenmanagement, Energiepolitik und Verbrauchern mit verschiedenen sozioökonomischen Hintergründen angetrieben. In Deutschland entfielen 26% des Endenergieverbrauchs auf den gesamten Endenergieverbrauch (BMWi, 2017), der fast doppelt so hoch wie der weltweite Durchschnitt mit 12,6% (EIA, 2017) war. Vorhandene Verfahren um Energieeffizienz von Gebäude zu analysieren haben eine hohe dynamische Dimension des Energieverbrauchs durch ausführliche Analyse der technischen Integration der Gebäude-Energiesysteme erreicht. Der Einfluss von Nutzerverhalten oder Interaktion durch die Kontrolle der ökologischen Qualität des Innenraums auf die Energieeffizienz von Gebäuden wird jedoch unterschätzt. Der Energieverbrauch von Wohngebäuden variiert mit physischen Unterschieden zwischen der Größe von Wohnungen, Arten der Grundstücken, Alter von Wohngebäuden und Leistungsgrad der Energiesystem, die Klima und Energiepreise, sowie auch Nutzerverhalten und Bewusstsein für Energieeinsparung im Besonderen, das von einzelnem sozioökonomischen Hintergrund betroffen sind. Einem Gleichgewicht dazwischen, Energierechnungen zu reduzieren und ohne Ofer des Lebenskomfort wird von allen Stakeholdern angestrebt. Obwohl energiesparende Technologien, Niedrigenergie-Gebäudekonzepte und Energiemanagementsysteme von Gebäuden einen ausgereiften Grad erreicht haben, scheint oft eine Kluft zwischen dem geplanten und dem tatsächlichen Energieverbrauch der Wohngebäude zu bestehen. Nutzerverhalten wird in diese Arbeit als ein wichtiger Einflussfaktor in der Kontrolle der umweltfreundlichen Innenraumqualität und Energieverbrauch. Erhebung von Daten der energetischen Nutzerverhaltene und technischen Ausrüstungen in das untersuchten Gebäude wurden umgesetzt durch unterschiedene Verfahren, z.B., Umfrage mit Fragebogen, Vor-Ort-Inspektion, und Analyse und Kalkulation usw., damit konnten als Grunddaten für weitere Simulation der Fallstudie genutzt werden. Ausgehend von der konventionellen Methodik „Retro-Commissioning" wird ein neues methodisches Kon-zept diskutiert, das ansonsten das energetische Nutzerverhalten während der Analysieren und Simulieren in Betracht zieht, um das Energieeinsparungspotenzial der Interaktion zwischen Nutzern (Bewohnern) und Gebäudesystem zu erkunden. IDA ICE als eine Modellierungssoftware simuliert in dieser Arbeit den Energieverbrauch des gesamten Gebäudes und den individuellen Energiekonsum und die Raumluftqualität, sowie die Wohnkomfort. Analyse und Vergleich auf der Ergebnisse der Simulation zwischen verschiedenen Wohnungen werden gezeigt, die mit unterschiedli-cher Belegungsrate und individueller Verhalten (z.B. tägliche Nutzungspläne von elektrischen Haushaltsgeräten) vorgestellt werden, um den synergetischen Effekt von objektive (Technologie) und subjektive (Bewohner) Auswirkungen auf den Energieverbrauch und die ökologischen Qualität von Innenraum zu belegen.German
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