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Night Ventilation Cooling of Office Buildings: Parametric Analyses of Conceptual Energy Impacts 办公建筑夜间通风冷却:概念能源影响的参数分析
夜间通风是冷却建筑物的一种低能耗策略。它的工作原理是利用自然通风或机械通风,在夜间冷却暴露在外的建筑内部表面的热量,以便它们在白天吸收热量,从而减少调节空气所需的能量。本文研究了四栋建筑、两栋被动冷却建筑和两栋空调建筑夜间通风的预测效果。采用简化的热力和通风模型进行预测;将模型与测量值进行了比较,以增加对结果的信心。结论是,该模型是向客户展示夜间通风和低能耗设计原则的一个有价值的工具。研究还发现,使用混合通风策略。 e、 ,白天进行空调,夜间进行自然通风,与没有夜间通风的同一栋建筑相比,典型建筑可节省约5%的冷却能量,而为最大限度地利用夜间通风而优化的建筑可节省高达40%的冷却能量。建议的节能措施不会对内部热环境条件造成任何影响。单位:双引用:研讨会论文,佐治亚州亚特兰大,2001年
Night ventilation is a low energy strategy for cooling a building. It works by using natural or mechanical ventilation to cool the thermal mass of exposed internal building surfaces at night so that they can absorb heat during the day, thus requiring less energy for conditioning the air. This paper investigates the predicted effectiveness of night ventilation in four buildings, two passively cooled and two air-conditioned. A simplified thermal and ventilation model is used for the predictions; the model has been compared with measured values to increase confidence in the results. It is concluded that such a model is a valuable tool to demonstrate the benefits of night ventilation and low energy design principles to clients. It was also found that using a hybrid ventilation strategy, i.e., air conditioning during the day and natural ventilation during the night, energy savings of about 5% of the cooling energy could be obtained in typical buildings and up to 40% in buildings optimized for maximum benefit from night ventilation compared to the same building without night ventilation. The suggested energy savings would occur without any compromise on the internal thermal environmental conditions.Units: Dual
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