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With climate change, the energy consumption of buildings for cooling purposes is expected to rise, further enhancing global warming through the increase of greenhouse gas emissions. To break this vicious circle, it is essential to decrease the anthropogenic CO2 emissions by lessening the energy consumption in all sectors. Buildings are responsible for 40% of energy consumption in the European Union, according to the International Energy Agency (IEA). The urge to build more energy-efficient buildings resulted in the emergence of nearly zero-energy buildings (nZEB). However, the specifications the nZEB design should comply with might not be sufficient to prevent the risk of overheating in summer, hence the purchase of an active cooling system. 
Passive cooling techniques are investigated through a dynamic simulation of a nearly zero-energy dwelling. Their efficiency is assessed based on their ability to improve thermal comfort while limiting the increase in energy consumption. Thermal comfort is measured based on the theory of adaptative comfort which is the most relevant for a residential building. The passive cooling techniques can be combined to ensure the resilience of the building to global warming. It was found that the most efficient techniques are the ones relying on ventilative cooling. In Western Europe, day cooling should be combined with night cooling to reduce the overheating risk and improve thermal comfort by 39%. Solar protections and smart glazing also offer an efficient protection against overheating. They improve thermal comfort by respectively 34 and 22%. 
The effectiveness of the combined passive cooling techniques is studied over an extreme meteorological event, which is likely to occur by 2100 if nothing is done to prevent global warming. Twenty days of intense heat are studied to evaluate the resilience of a nZEB. It was found that the most efficient combination includes night cooling, thermochromic glazing and adiabatic cooling. Adiabatic cooling is particularly efficient during heat waves. Those techniques allow to decrease the indoor temperature by almost 10°C. However, occupants’ behaviour could have a negative impact on the cooling techniques efficiency.

Passive cooling --- Global warming --- Nearly zero-energy buildings --- Resilience --- Overheating --- Thermal comfort --- Ingénierie, informatique & technologie > Energie

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Mit dem Inkraftreten der der Energie-Einspar-Verordnung EnEV 2006 und der Einführung des Energieausweises für Gebäude innerhalb der EU ist ein starker Anstieg des Auftragsvolumens im Bereich der Gebäudesanierung zu erwarten. Dieser Band ist ein Ratgeber mit konkreten Hinweisen zur Umsetzung energetischer Sanierungsmaßnahmen, der den Planer vom Entwurf bis zur Ausführung begleitet. Alle energetischen Fragen sind entsprechend der Zielsetzungen behandelt. Großmaßstäbliche Detailzeichnungen dokumentieren konstruktive Lösungen zur Behebung baulicher Schwachstellen. Ein Überblick über anlagentechnische Maßnahmen hilft bei der Beurteilung von Möglichkeiten, Kosten und Wirtschaftlichkeit. Dass nachhaltige Verbesserungen nicht allein durch energetische Maßnahmen erreicht werden können, sondern dass die Betrachtung des gesamten Gebäudes wichtig ist, zeigen realisierte Projekte. Die Beispiele sind jeweils mit Zustandsanalyse, Darstellung der Maßnahmen und deren Bewertung dokumentiert. Now that the Energy Certificate for Buildings has been introduced throughout the European Union, we can expect to see a sharp rise in the number of building renovations. This volume is a practical guide with concrete recommendations for realizing energy-related renovation measures - it accompanies the planner from design to execution. All energy-related issues are treated according to their goals. Large-scale detail drawings document constructive solutions for removing structural weaknesses. An overview of installation engineering measures helps to evaluate possibilities, costs, and economic viability. The book uses realized projects to demonstrate that sustainable improvements cannot be achieved by energy-specific measures alone - it is also important to consider the building as a whole. All of the examples are documented with a state analysis as well as a depiction and assessment of the measures taken.

Buildings --- Architecture and energy conservation. --- Energy conservation and architecture --- Energy efficient buildings --- Energy conservation --- Energy conservation. --- Zero energy buildings

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Architecture and energy conservation. --- Buildings --- Renewable energy. --- Energy conservation. --- Energy conservation and architecture --- Energy efficient buildings --- Energy conservation --- Zero energy buildings

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Sustainable construction. --- Construction industry --- Building materials. --- Architecture and energy conservation. --- Energy conservation and architecture --- Energy efficient buildings --- Energy conservation --- Architectural materials --- Architecture --- Building --- Building supplies --- Buildings --- Construction materials --- Structural materials --- Materials --- Green construction --- Sustainable engineering --- Energy conservation. --- Zero energy buildings

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Architecture and energy conservation. --- Buildings --- Sustainable buildings. --- Energy conservation. --- Ecologically sustainable buildings --- Environmentally sustainable buildings --- Green buildings (Green technology) --- Sustainable development --- Energy conservation and architecture --- Energy efficient buildings --- Energy conservation --- Zero energy buildings