Abstract The evaluation of natural ventilation potential for cooling indoor spaces during the early design phases is of great interest to researchers and practitioners. Among various definitions and usages for natural ventilation potential (NVP) in early design evaluation, this paper reviews and identifies the key performance indicators, and proposes two new dynamic metrics—natural ventilation cooling effectiveness (NVCE) and climate potential utilization ratio (CPUR). The metrics are dynamically responsive to various design options, in both steady and transient states, allowing consideration of thermal mass. Assisting in design development processes, the metrics quantify how well indoor spaces make use of natural ventilation's cooling capacity. Case studies are presented to demonstrate how NVCE and CPUR enable designers to evaluate the predicted performance and how to apply the information to improve building design. The results of the design iterations showed that the relationship among various design parameters should be dynamically understood in order to evaluate the performance of natural ventilation, confirming that “the more the airflow, the greater the potential,” and “the heavier the thermal mass, the greater the energy saving” were not always true.

中文翻译：

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用于交互式建模的自然通风冷却效率的动态度量

摘要 在早期设计阶段对用于冷却室内空间的自然通风潜力的评估是研究人员和从业人员非常感兴趣的。在早期设计评估中自然通风潜力（NVP）的各种定义和用法中，本文回顾并确定了关键性能指标，并提出了两个新的动态指标——自然通风降温效率（NVCE）和气候潜力利用率（CPUR）。这些指标动态响应各种设计选项，包括稳态和瞬态，允许考虑热质量。在协助设计开发过程中，这些指标量化了室内空间利用自然通风的冷却能力的程度。案例研究展示了 NVCE 和 CPUR 如何使设计师能够评估预测的性能以及如何应用这些信息来改进建筑设计。设计迭代的结果表明，为了评估自然通风的性能，应动态理解各种设计参数之间的关系，确认“气流越多，潜力越大”，“热质量越重，节能越大”并不总是正确的。