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Abstract(s)
Neste trabalho foi estudado o desempenho térmico de um piso radiante com dois tipos de
acabamento de superfície, estudo este realizado numa câmara climática com ambiente
controlado.
Este estudo teve como objectivo caracterizar o desempenho térmico do piso para cada tipo de
acabamento da superfície e o seu impacto nas condições de conforto térmico no interior da
câmara.
Para a realização deste estudo inicialmente simulou-se condições de verão e de inverno no
interior da câmara climática, utilizando-se posteriormente o piso para arrefecer e aquecer
(respectivamente) o interior da câmara. Este protocolo de ensaio foi utilizado para o ensaio do
piso com os dois tipos de acabamento superficial.
A análise do conforto térmico no interior da câmara climática foi feita seguindo-se a norma ISO
7730, a qual utiliza o modelo desenvolvido por Fanger [1] numa câmara climática, para tal
foram calculados os índices de conforto térmico (PMV e PPD) através de folhas de cálculo
auxiliadas pelo programa VISUAL BASIC.
Estas análises revelaram-se inconclusivas para a determinação de qual o acabamento de
superfície do piso radiante com melhor desempenho a nível térmico e de conforto, para o
funcionamento em modo de aquecimento, pois ambos os acabamentos de superfície testados
apresentaram desempenhos semelhantes. Em modo de arrefecimento o piso com acabamento
em cerâmica apresentou um melhor desempenho tanto em termos térmicos como também a
nível de conforto.
In this work was studied the thermal performance of a radiant floor with two types of surface finish, this study was conducted in a climatic chamber with controlled environment. This study aimed to characterize the thermal performance of the floor for each type of surface finish and its impact on thermal comfort conditions inside the chamber. For this study were initially simulated conditions of summer and winter climate in the chamber, the floor was then used to cool and heat (respectively) the chamber. This test protocol was used for testing the floor with the two types of surface finish. The analysis of thermal comfort inside the climatic chamber was performed according to ISO 7730, which uses the model developed by Fanger (1982) [1] in a climatic chamber. Thermal comfort indices (PMV and PPD) were calculated using spreadsheets assisted by the program VISUAL BASIC. These tests proved to be inconclusive in determining which surface finish of the floor had the best thermal and comfort performance in heating mode, because both surface finishes tested presented similar results. In cooling mode, the floor with the ceramic finish presented a better thermal performance, as well in terms of comfort.
In this work was studied the thermal performance of a radiant floor with two types of surface finish, this study was conducted in a climatic chamber with controlled environment. This study aimed to characterize the thermal performance of the floor for each type of surface finish and its impact on thermal comfort conditions inside the chamber. For this study were initially simulated conditions of summer and winter climate in the chamber, the floor was then used to cool and heat (respectively) the chamber. This test protocol was used for testing the floor with the two types of surface finish. The analysis of thermal comfort inside the climatic chamber was performed according to ISO 7730, which uses the model developed by Fanger (1982) [1] in a climatic chamber. Thermal comfort indices (PMV and PPD) were calculated using spreadsheets assisted by the program VISUAL BASIC. These tests proved to be inconclusive in determining which surface finish of the floor had the best thermal and comfort performance in heating mode, because both surface finishes tested presented similar results. In cooling mode, the floor with the ceramic finish presented a better thermal performance, as well in terms of comfort.
Description
Keywords
Piso radiante hidráulico Piso radiante - Conforto térmico Piso radiante - Conforto térmico - Avaliação do desempenho Piso radiante - Aquecimento Piso radiante - Arrefecimento
Pedagogical Context
Citation
Publisher
Universidade da Beira Interior