The Implications of Long-Term Local Climate Change for the Energy Performance of an nZEB Residential Building in Volos, Greece

Energies, Год журнала: 2025, Номер 18(5), С. 1032 - 1032

Опубликована: Фев. 20, 2025

The construction of nearly zero-emission buildings in Europe and internationally has become mandatory by legislation. In parallel with these developments, the non-reversible increase ambient temperatures stresses buildings’ energy systems during summer months extreme temperatures, their severity varying according to local microclimate. These phenomena result an cooling loads. Thus, HVAC system’s performance needs more careful study, especially for residential sector wherever night effect is no longer capable releasing stress. present work, impact climate change on a building’s studied through simulations. future increases intensity duration heat waves assessed exploiting long-term forecasting capabilities transformer neural network model, trained existing meteorological data period 2007–2023. Based forecasted climatic conditions 2030 2040 produced this way, projected effects are assessed. forecast was aided 43 years temperature Europe, available ERA5 Copernicus program datasets. respective predictions electricity consumption wave episodes long durations point necessity special measures keep internal grid’s autonomy reduce unwanted interactions external grid. Moreover, further improvements nZEB building design improved would be critical success policy next two decades.

Язык: Английский

Mapping the Potential of Zero-Energy Building in Greece Using Roof Photovoltaics

Designs, Год журнала: 2024, Номер 8(4), С. 68 - 68

Опубликована: Июль 4, 2024

The present study investigates the incorporation of renewable rooftop photovoltaic systems in fully electrified residential buildings and estimates zero-energy demand building potential relation to climatic data Greece. Specifically, aim analysis is calculate maximum possible number stories therefore total height for a complete transformation zero-net-energy building. energy analysis, which conducted using DesignBuilder software, focuses on single-floor up seven-story buildings. importance work lies acknowledgment diversity Greek sector, adherence national policies, European goal examined case studies are equipped with electrically driven air-to-air heat pumps serving space heating cooling demands an air-to-water pump covering domestic hot water requirements. investigated locations four main cities Greece, Athens, Thessaloniki, Chania, Kastoria, represent country’s categories. allows mapping demonstrating possibility striking positive balance through integration on-site sources production necessary electrical energy. novelty identification key factor, namely, height, determines feasibility transforming multifamily into According results, critical calculated at six five two Kastoria. Regarding three-story building, system can result annual surplus electricity 13,741 kWh (Chania), 10,424 (Athens), 6931 (Thessaloniki), corresponding coverage 100% 69.0% 38.9% (Thessaloniki) 0% (Kastoria).

Язык: Английский

Thermische Bauteilaktivierung: Ein Gamechanger der Energiewende für die Gebäudesanierung

Bauphysik, Год журнала: 2024, Номер 46(6), С. 374 - 380

Опубликована: Дек. 1, 2024

Abstract Diese Studie analysiert den Einfluss der thermischen Speichermasse auf die Energieeffizienz und das Lastmanagement in unterschiedlichen Gebäudesanierungsvarianten: ein Wärmedämmverbundsystem (WDVS) mit bestehenden Heizkörpern, WDVS Kombination einer Flächenheizung eine außenliegende Fassadenkonditionierung durch Aktive Dämmheizkühlsystem (AktivDHKS). Ziel Untersuchung ist es, Potenzial dieser Sanierungsansätze zur Verbesserung Lastverschiebung (Load‐Shifting) Reduktion von Lastspitzen (Peak‐Shaving) im Stromnetz zu bewerten. Durch Einsatz Simulationen werden dynamischen Reaktionen Gebäudehüllen externe interne Lasten sowie deren Interaktionen dem Energieversorgungssystem evaluiert. Die vorläufigen Ergebnisse deuten darauf hin, dass insbesondere AktivDHKS seine direkte Aktivierung Masse erheblich Stabilisierung des Stromnetzes beitragen kann. Erkenntnisse bieten wertvolle Impulse für Entwicklung nachhaltiger Sanierungsstrategien, sowohl ökonomische als auch ökologische Vorteile unterstützen somit Realisierung Ziele Energiewende.