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Recently, the approach for studying human comfort indoors has been changing for a multi-domain framework once some studies have reported cross-effects between different comfort domains (i.e., thermal, visual, acoustic, and air quality). An example of cross-effects between comfort domains is the hue-heat hypothesis (HHH), referring to the possible association between lighting and the human thermal response. This paper presents a new investigation to verify the validity of the HHH. Several experiments were conducted in a test room under a fully controlled setting, combining two thermal (slightly cold and slightly hot) and three lighting conditions (blue, red, and white lights with nearly the same illuminance level). The experiments were divided into two parts, each one dedicated to a thermal setting. After acclimatisation, the participants were submitted to each colour of light for seven minutes under a constant air temperature. A total of 39 people participated twice in the experiment, each time in a different thermal condition, and before changing the colour of light, they answered a survey about their thermal sensation, thermal comfort, visual comfort, overall comfort, and perceived level of productivity. Answers were compared using statistical methods. The results did not allow to confirm the HHH, since no statistically significant differences were observed for thermal comfort and thermal sensation for the different colours of light. The only significant difference observed was for visual comfort in the slightly cold thermal condition, between red and white lights. In fact, the survey responses for visual comfort indicate that people preferred the white light. White light was also associated with better overall comfort assessment and perceived productivity in both thermal conditions, but the differences were not statistically significant. Further investigations should be performed under more thermally stressful environments and should also evaluate the physiological factors of participants as a thermal response instead of only subjective outcomes., CLIMA 2022 conference, 2022: CLIMA 2022 The 14th REHVA HVAC World Congress

A literatura evidencia a influência do comportamento de usuários no desempenho energético de edificações, bem como o impacto do gênero na percepção da qualidade ambiental interna. Este artigo avalia a influência do gênero dos ocupantes nos principais motivos para ajustar janelas, persianas, aparelhos de ar-condicionado e iluminação em escritórios. Um questionário foi enviado para funcionários da Universidade Federal de Santa Catarina para ser respondido de forma anônima, obtendo-se 278 respostas válidas. Concluiu-se que o gênero dos ocupantes influencia os ajustes de janelas, persianas e aparelhos de ar-condicionado, mas possui pouca relação com os ajustes do sistema de iluminação. As principais diferenças percebidas estão relacionadas aos ajustes motivados pelo ambiente térmico. Este trabalho contribuiu para um melhor entendimento do comportamento do usuário em edificações de escritório.