Abstract
The residential built environment is responsible for at least 40% of the entire energy consumption in EU out of which, at least 60% is required for heating, cooling and DHW, generating more than 24% of the overall CO2 emissions. Through the EPBD and EED directives, the European legislation demands nearly Zero Energy Buildings (nZEB) or Low Energy Buildings (LEB) for all new or refurbished public buildings starting with 2019 and for all the other new or refurbished buildings starting with 2021. As EU partner, Romania has harmonized the national legislation and standards on energy efficiency and performance; however a series of complementary applicable measures need to be implemented in order to reduce the level of the thermal energy demand, and finally, using various renewable energy sources, the legal frame can be implemented with acceptable and feasible costs. This paper aims to conduct a comparative study of the energy demand calculated using the standard method and the TRNSYS-Weather Data method, to outline the influence of weather data accuracy on the thermal energy demand of a building. A case study of a new collective household (block of flats) located in Brasov City, Romania (45°67′ N; 25°60′ E and 598 m altitude), will be analysed using weather data interpreted with the Meteonorm software as input data in the TRNSYS software, in order to create various scenarios and to assess the technical solutions from the point of view of their feasibility and degree of acceptance.
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Acknowledgments
This work was supported by a grant of the Romanian National Authority for Scientific Research and Innovation, CNCS/CCCDI-UEFISCDI, project number PN-III-P2-2.1-PED-2016-0338, within PNCDI III.
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Ilie, A.C., Visa, I. (2018). Comparative Analysis of the Energy Demand by Standard Method and the TRNSYS-Weather Data Method. In: Visa, I., Duta, A. (eds) Nearly Zero Energy Communities. CSE 2017. Springer Proceedings in Energy. Springer, Cham. https://doi.org/10.1007/978-3-319-63215-5_19
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DOI: https://doi.org/10.1007/978-3-319-63215-5_19
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