It has been found in recent years that using setpoint temperatures based on adaptive thermal comfort models is a successful method of energy conservation. Recent studies using adaptive setpoint temperatures incorporate international models from ASHRAE Standard 55 and EN16798-1. This study, however, has instead considered a regional Brazilian adaptive comfort model. This study investigates the energy demand arising from the use of a local Brazilian comfort model in order to assess the energy implications from the use of the worldwide ASHRAE Standard 55 adaptive model and various fixed setpoint temperatures. All of Brazil’s climate zones, full air-conditioning, mixed-mode building operating modes, present-day climate change scenarios, and future scenarios—specifically Representative Concentration Pathways (RCP) 2.6, 4.5, and 8.5 for the years 2050 and 2100—have all been taken into account in building energy simulations. The use of adaptive setpoint temperatures based on the Brazilian local model considering mixed-mode has been found to significantly reduce energy consumption when compared to static setpoint temperatures (average energy-saving values ranging from 52% to 58%) and the ASHRAE 55 adaptive model (average values ranging from 15% to 21%). Considering climate change and the mixed-mode Brazilian model, the overall energy demand for the three groups of climatic zones (annual average outdoor temperatures ≤ 21 °C, > 21 and ≤ 25 °C and > 25 °C) ranged between 2% decrease and 5% increase, 4% and 27% increase, and 13% and 45% increase, respectively. It is concluded as a consequence that setting setpoint temperatures based on the Brazilian local adaptive comfort model is a very efficient energy-saving method.

近年来发现，使用基于自适应热舒适模型的设定温度是一种成功的节能方法。最近使用自适应设定点温度的研究纳入了 ASHRAE 标准 55 和 EN16798-1 的国际模型。然而，这项研究考虑了巴西区域适应性舒适模型。本研究调查了使用巴西当地舒适模型所产生的能源需求，以评估使用全球 ASHRAE 标准 55 自适应模型和各种固定设定点温度所产生的能源影响。巴西所有气候区、全空调、混合模式建筑运行模式、当前气候变化情景和未来情景（特别是 2050 年和 2100 年的代表性浓度路径 (RCP) 2.6、4.5 和 8.5）均已所有这些都已在建筑能源模拟中考虑在内。与静态设定点温度（平均节能值范围为 52% 至 58%）和 ASHRAE 55 自适应模型相比，使用基于考虑混合模式的巴西本地模型的自适应设定点温度已被发现可显着降低能耗（平均值范围为 15% 至 21%）。考虑到气候变化和巴西混合模式，三组气候带（年平均室外温度≤21°C、>21且≤25°C和>25°C）的总体能源需求下降了2%分别增加 5%、4% 和 27%、13% 和 45%。由此得出的结论是，基于巴西当地自适应舒适模型设置设定点温度是一种非常有效的节能方法。