Validation and review of grouping of Brazilian cities in degrees-days of heating and cooling
DOI:
https://doi.org/10.5935/cadernospos.v23n1p70-90Keywords:
Climatic change; Degree days of heating and cooling; Grouping; Climatic classification.Abstract
Estimating energy consumption for environment conditioning is a key point in determining the energy consumption of a building. The energy required for air conditioning can be used to quantify the climatic rigor of a given location. However, Brazil does not have technical standards and/or zoning established by a calculation method for the definition of degrees-days. This paper aims to present the update of the proposal of zoning based on degree-day, elaborated by Stensjö, Ferreira e Loura (2017), from data from 317 Brazilian cities using the Climatological Normals (1961-1990). The classification of the new set of Climatological Normals for the period from 1981 to 2010 undertests adjustments in the process of defining the base temperature for degrees-days of heating. For the development, the proposed method and the same references used by Stensjö, Ferreira and Loura (2017) were followed to establish the base temperatures, calculations of degree-days and grouping. Regarding classification, the article investigates three possibilities to identify the most appropriate one for the new database. The results demonstrated the robustness of the method, allowed refinement of the classification process, as well as the identification of energy demand trends for Brazilian homes.
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