Building decarbonization requires balancing energy efficiency with occupant comfort. Sensible cooling and latent loads, traditionally addressed by air conditioning, are significant contributors to energy use. This study explores an innovative approach to utilize natural ventilation through windows when outdoor conditions are favorable. The novelty of this work lies in its comprehensive consideration of sensible and latent loads, including both humidification and dehumidification, within the context of natural ventilation. When in cooling mode, if the indoor temperature rises above the cooling set point and the outdoor temperature is lower than the indoor temperature, the windows will automatically open to enhance natural ventilation, provided the specific humidity conditions for indoor, outdoor, and set point are met. Simulations using the Vertical City Weather Generator (VCWG v1.4.7) software investigate the energy savings potential in Toronto, Vancouver, and Phoenix for 2020. Results indicate potential for notable annual total cooling load savings of 5–15 kW-hr m Year. Additionally, further analyses examine the impact of building air-tightness, envelope thermal resistance, and climate zone on the effectiveness of natural ventilation to reduce the sensible cooling, latent, and total cooling loads.

中文翻译：

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使用自然通风的潜在和显热建筑能源负荷的影响


建筑脱碳需要平衡能源效率和居住舒适度。传统上通过空调解决的显冷和潜在负荷是能源使用的重要贡献者。这项研究探索了一种在室外条件有利时利用窗户自然通风的创新方法。这项工作的新颖性在于它在自然通风的背景下综合考虑了显热负荷和潜在负荷，包括加湿和除湿。在制冷模式下，如果室内温度高于制冷设定点且室外温度低于室内温度，窗户将自动打开以加强自然通风，前提是室内、室外和设定点的具体湿度条件为遇见了。使用 Vertical City Weather Generator (VCWG v1.4.7) 软件进行的模拟调查了 2020 年多伦多、温哥华和菲尼克斯的节能潜力。结果表明，每年可显着节省 5-15 kW-hr m 年总冷却负荷。此外，进一步分析了建筑气密性、围护结构热阻和气候区对自然通风减少显冷、潜冷和总冷负荷的有效性的影响。