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Comparison of Measured and Calculated Air Changes due to Single Sided Window Openings - A Case Study

机译：单侧开窗引起的测量和计算的空气变化的比较-案例研究

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The present paper focuses on the evaluation of different methods for calculation of air change rates due to natural ventilation through windows. Such estimations are of utmost importance for the studies, in which the influence of window operation on thermal comfort, air quality and building performance is to be addressed. Especially, to build accurate building performance models and to develop reliable building simulation scenarios, it is crucial to predict proper values of air exchange. A number of standards and recent scientific contributions present various models for the estimation of air change rates, whereby different sets of input parameters related to room and outdoor conditions are needed. The current contribution examines the reliability of calculated air change rates obtained via a number of widely used estimation methods for a case study room with single sided windows. To this end, a number of tracer gas measurements in a variety of window state settings were conducted, and the real air change rates were calculated based on the measured concentration decay of the tracer gas. Consequently, using the resulting measured and calculated values of air change rates, the reliability of estimation methods could be extensively explored.
机译：本文着重于评估通过窗户自然通风导致的空气变化率计算的不同方法。这样的估计对于研究至关重要，在该研究中要解决窗户操作对热舒适性，空气质量和建筑性能的影响。尤其是，要建立准确的建筑物性能模型并开发可靠的建筑物模拟方案，预测空气交换的适当值至关重要。许多标准和最新的科学贡献提出了用于估计空气变化率的各种模型，因此需要与室内和室外条件相关的不同输入参数集。当前的贡献将检验通过用于单面窗户的案例研究室的多种广泛使用的估算方法获得的计算出的空气变化率的可靠性。为此，在各种窗口状态设置中进行了许多示踪气体测量，并基于测得的示踪气体浓度衰减来计算实际空气变化率。因此，使用所得的空气变化率测量值和计算值，可以广泛地探索估计方法的可靠性。

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