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Dynamic metrics of natural ventilation cooling effectiveness for interactive modeling

机译：交互式建模自然通风冷却效能的动态度量

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摘要

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.
机译：在早期设计阶段在早期设计阶段进行冷却室内空间的自然通风电位的评估对于研究人员和从业者来说是极大的兴趣。在早期设计评估中的自然通风潜力（NVP）的各种定义和用途中，本文评估和确定关键绩效指标，并提出了两种新的动态度量 - 自然通风冷却效果（NVCE）和气候潜在利用率（CPUR）。度量标准在稳定和瞬态状态下对各种设计选项进行动态响应，允许考虑热质量。协助设计开发过程，度量标准量化室内空间如何利用自然通风的冷却能力。提出案例研究以演示NVCE和CPUR如何使设计人员能够评估预测的性能以及如何应用信息以改善建筑设计。设计迭代的结果表明，应该动态地理解各种设计参数之间的关系，以便评估自然通风的性能，确认“气流越多，潜在”和“较重的热质量”，节能越大“并不总是如此。

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