Impact of correlated color temperature on thermal and visual perceptions: A case study in a climatic chamber
DOI:
https://doi.org/10.46421/entac.v20i1.5903Keywords:
Human comfort, thermal environment, luminous environment, multi-domainAbstract
This study aims to evaluate the relationship between the correlated color temperature (CCT) of lighting and human thermal perception, as well as the relationship between air temperature and visual perception in occupants of indoor environments. The experiment was conducted in a climatic chamber, using the international protocol of the Round Robin Test Rooms project to test the Hue Heat hypothesis, which suggests that an environment with red light causes a sensation of warmth. Participants were exposed to three lighting conditions with different correlated color temperatures (reddish - 2850 K, yellowish - 3928 K, and bluish – 5688 K) for 30 minutes in each condition. The experiment was repeated with different air temperatures (20, 26, and 28°C). During the experiment, participants answered comfort, acceptability, and thermal and visual perception questionnaires. The results, analyzed with the chi-square method, indicated that no statistically significant differences were observed between air temperature and visual perception, nor between the correlated color temperature of the lighting and the thermal response of the occupants. This work contributes to the studies of the factors that influence the relationships between the multiple domains of environmental comfort.
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