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Downscaling of Hourly Climate Data for the Assessment of Building Energy Performance

Author

Listed:
  • Irena Balog

    (ENEA C.R. Casaccia, Via Anguillarese 301, 00123 Rome, Italy)

  • Giampaolo Caputo

    (ENEA C.R. Casaccia, Via Anguillarese 301, 00123 Rome, Italy)

  • Domenico Iatauro

    (ENEA C.R. Casaccia, Via Anguillarese 301, 00123 Rome, Italy)

  • Paolo Signoretti

    (ENEA C.R. Casaccia, Via Anguillarese 301, 00123 Rome, Italy)

  • Francesco Spinelli

    (ENEA C.R. Casaccia, Via Anguillarese 301, 00123 Rome, Italy)

Abstract

In Italy, the calculation of the energy needs of buildings has been mainly based on quasi-steady state calculation procedures. Nowadays, the increasing interest in more detailed energy analysis for high-efficiency buildings requires more accurate calculation methods. In this work, starting from the hourly data of UNI 10349, the downscaling of a typical meteorological year was carried out by applying different mathematical and physical models for the main climate variables considered in the energy balance of a building to be used in dynamic simulation tools. All results were validated with one-minute measurements observed at the ENEA Research Centre in Rome, Italy. The results showed an MBE% of 0.008% and RMSE% of 0.114% using the interpolation spline method for the temperature, while, for the global horizontal irradiance, applying the novel sinusoidal–physical interpolation method showed an MBE% of −0.4% and an RMSE% of 31.8% for the 1 min observation data. In this paper, an easily implemented novel model for downscaling solar irradiance for all sky conditions that takes into account the physical aspects of atmospheric phenomena is presented.

Suggested Citation

  • Irena Balog & Giampaolo Caputo & Domenico Iatauro & Paolo Signoretti & Francesco Spinelli, 2023. "Downscaling of Hourly Climate Data for the Assessment of Building Energy Performance," Sustainability, MDPI, vol. 15(3), pages 1-14, February.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:3:p:2762-:d:1056254
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    References listed on IDEAS

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    1. Piotr Michalak, 2021. "Modelling of Solar Irradiance Incident on Building Envelopes in Polish Climatic Conditions: The Impact on Energy Performance Indicators of Residential Buildings," Energies, MDPI, vol. 14(14), pages 1-27, July.
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    Cited by:

    1. Omoyele, Olalekan & Hoffmann, Maximilian & Koivisto, Matti & Larrañeta, Miguel & Weinand, Jann Michael & Linßen, Jochen & Stolten, Detlef, 2024. "Increasing the resolution of solar and wind time series for energy system modeling: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 189(PB).

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    Keywords

    climate data; downscaling; TMY;
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