Optimal Balance between Heating, Cooling and Environmental Impacts: A Method for Appropriate Assessment of Building Envelope’s U-Value
نویسندگان
چکیده
In Europe, the recent application of regulations oriented to zero-energy buildings and climate neutrality in 2050 has led a reduction energy consumption for heating cooling construction sector. The thermal insulation building envelope plays key role this process requirements about maximum allowable transmittance are defined by country-specific guidelines. Typically, high values provide low heating; however, they may also entail risk overheating summer period thus negatively affect overall performance building. addition, embodied related emissions caused manufacturing transportation processes cannot be further neglected evaluation best optimal solution. Therefore, paper aims evaluate influence terms operational various walls’ thicknesses on residential Europe. To end, EnergyPlus engine was used simulation within Ladybug Honeybee tools, parametrically conducting multiple iterations; 53 variations external wall U-value, considering high- low-thermal-mass scenarios, were simulated 100 representative cities European context, using typical multifamily as reference. results demonstrate that massive walls generally perform better than lightweight structures solution varies according each climate. Accordingly, wall’s samples Oslo, Bordeaux, Rome Almeria Continental, oceanic temperate, Mediterranean, hot, semi-arid climates were, respectively: 0.12, 0.26, 0.42, 0.64 W/m2K. solutions graphically reported map Europe specific climatic features, providing guidance new constructions retrofit.
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ژورنال
عنوان ژورنال: Energies
سال: 2022
ISSN: ['1996-1073']
DOI: https://doi.org/10.3390/en15103570