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Preliminary design method for naturally ventilated buildings using target air change rate and natural ventilation potential maps in the United States

机译:使用目标空气变化率和美国自然通风潜力图的自然通风建筑的初步设计方法

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摘要

Natural ventilation design is one of the most effective strategies for designing green buildings. The cost-effectiveness of this strategy should be considered to balance its benefits with its higher initial costs. In addition, it is becoming increasingly important to discuss the potential energy savings. For this purpose, quantitative evaluations are valued during the early stages of building planning and design because a building's shape can have large impacts on the performance of natural ventilation. However, few studies have fully examined the criteria for this type of evaluation. In this paper, a target air change rate is proposed as a desired criterion. The target air change rate is defined as the point where the gradient of the increase in the cooling effect from natural ventilation reaches a maximum. Above this point the rate of improvement in building comfort is more modest. In addition, this paper provides maps of indices for the United States. The maps help architects obtain a clear understanding of their design directions, e.g., a carefully designed natural ventilation strategy is highly recommended for building projects in warm-dry climates, where the internal gains are moderate, and for building projects in cold climates, where the internal gains are very high. (C) 2015 Elsevier Ltd. All rights reserved.
机译:自然通风设计是设计绿色建筑的最有效策略之一。应该考虑该策略的成本效益,以平衡其收益与较高的初始成本。另外,讨论潜在的节能措施变得越来越重要。为此,在建筑物规划和设计的早期阶段就应进行定量评估,因为建筑物的形状会对自然通风的性能产生重大影响。但是,很少有研究充分检查这种评估标准。在本文中,提出了目标换气率作为期望标准。目标空气变化率定义为自然通风带来的冷却效果增加的梯度达到最大值的点。高于此点,建筑舒适性的改善率就更适中。此外,本文还提供了美国的索引图。这些地图可帮助建筑师清楚地了解其设计方向,例如,强烈建议在内部收益适度的暖干气候建筑项目和寒冷气候下的建筑项目中,精心设计自然通风策略。内部收益很高。 (C)2015 Elsevier Ltd.保留所有权利。

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