Proposition of a simplified method for predicting hourly indoor temperatures in test cells
Palavras-chave:
indoor temperature predictions, thermal performance, test cellsResumo
Test cells can be used for testing the thermal performance of different passive systems and building components. Predictive methods for estimating indoor air temperatures can further enhance the number of configurations tested without increasing the amount of test cells to be built. Thus, direct comparisons can be drawn for identical background climatic conditions. In its most basic form, formulas are generated by linear regression from relatively short data sets, which provide daily indoor temperature conditions. However, for more detailed analyses, daily indoor temperature predictions may not suffice. In this paper, a method for obtaining hourly indoor air temperature predictions is proposed. It is based on rising and decreasing rates of the indoor temperature fluctuation relative to outdoors, which translates to warming or cooling trends of indoor thermal conditions. The applicability of the method is for test cells. It is a simple method yet capable of predicting the thermal behavior of complex physical processes. The method was tested using measured data from experiments in a test cell, built with conventional building materials in Brazil. Results showed high performance with mean bias of 0.27 °C to measured data and Pearson’s r 0.99. When compared to traditional regression-based models, the method proposed showed better results.
Downloads
Downloads
Publicado
Como Citar
Edição
Seção
Licença
Declaração de direito autoral (Copyright)
Autores que publicam na Ambiente Construído estão de acordo com os termos:
- Os autores cedem à Revista o direito de publicação sob a Licença Creative Commons Attritution (CC BY 4.0), permitindo acesso, impressão, leitura, distribuição, adaptação, desenvolvimento de outras pesquisas, desde que reconhecida a autoria.
- Os autores são autorizados a distribuir o trabalho publicado na Revista, como por exemplo repositórios institucionais, ou inclusão de seus trabalhos como parte de tese e/ou dissertação, desde que mencionada a referência de publicação na Ambiente Construído.
- Qualquer pessoa pode ler, distribuir, imprimir, fazer download, indicar o endereço do artigo completo sem prévia autorização da Revista respeitando a licença CC BY 4.0.
Creative Commons Attribution License
ISSN 1678-8621