PMV extension to evaluate thermal comfort of elderly women in naturally ventilated rooms

• Autor(a) principal: Ruviaro, Raiana Spat
• Data de Publicação: 2021
• Outros Autores: Zambonato, Bruna, Grigoletti, Giane de Campos
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: PARC (Campinas)
• Texto Completo: https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8658443
• topic: Conforto térmico; Idosas; PMV; Thermal comfort; Elderly women; PMV

The aging of the population requires creating conditions for the elderly to live with quality. Buildings' thermal comfort is essential to achieve this goal. This research analyzes the Predicted Mean Vote (PMV) and its extension (PMVe) to assess elderly women's thermal comfort conditions, aged 60 years or above. The study was conducted in two naturally ventilated senior homes in Santa Maria, RS, region with a temperate climate and hot summer. The study measured air temperature, air relative humidity, globe temperature, and air velocity. The study also performed a data survey on the perception and thermal preferences, clothing, and metabolic activity of the elderly. Then, the comfort sensation index was calculated. Users' thermal sensation was compared with PMV and PMVe, considering expectation factors of 0.5, 0.7, and 0.9. Comparing the three PMVe values, we could estimate that the lower the expectation factor, the smaller the difference between the PMVe and the negative thermal sensation votes (cold). The PMVe with correction factor 0.5 presented a perfect correlation for the PMV variables and the thermal sensation to 11.54% of the measurements. In contrast, the PMVe of 0.7 and 0.9 showed no points over the correlation reference line. The study demonstrated that the PMV extension does not correct the PMV inaccuracies but reduces the thermal sensation's differences, reducing the cold sensation overestimation of PMV results for elderly women.