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首页> 外文期刊>Building and Environment >A simulation framework for predicting occupant thermal sensation in perimeter zones of buildings considering direct solar radiation and ankle draft
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A simulation framework for predicting occupant thermal sensation in perimeter zones of buildings considering direct solar radiation and ankle draft

机译：考虑直接太阳辐射和踝草射线的建筑物周边区域中预测乘员热敏的仿真框架

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摘要

Buildings with highly glazed envelopes have gained popularity in recent decades. Though it is well understood that these modern buildings can be less energy efficient, only a few attempts have been made to examine the impact of certain building design decisions, such as window characteristics, on indoor thermal sensation and thermal comfort. While conventional assessment of thermal sensation and comfort primarily considers zone-level environmental conditions (e.g. air temperature and relative humidity), localized effects including direct solar radiation exposure and ankle draft may also exist and can impact indoor thermal sensation especially in highly glazed perimeter zones. In this work, a simulation framework is introduced to incorporate the solar radiation effect and ankle draft effect, which are shown to increase warm and cold thermal sensation levels, respectively. The novel proposed ankle draft model adapts local draft conditions to determine the impact on overall thermal sensation for the first time. This simulation framework is demonstrated using a single-zone model using the climate of Toronto, Canada to illustrate the effect of three primary window design parameters on thermal sensation using a visualization approach: window size, U-factor, and solar heat gain coefficient. All observations are aligned with anecdotal evidence: warm thermal sensation level is positively correlated with window size and solar heat gain coefficient, whereas cold thermal sensation level is positively correlated with window size and window U-factor. This simulation framework can be used to analyze indoor thermal sensation and comfort for perimeter zones in existing buildings or fenestration alternatives during building design phases.
机译：近几十年来，拥有高度玻璃信封的建筑越来越受欢迎。虽然很好看出，这些现代建筑物可以较低，但是只有几次尝试，以检查某些建筑设计决策的影响，如窗口特性，在室内热敏和热舒适度。虽然传统的热敏和舒适性评估主要考虑区域级环境条件（例如，空气温度和相对湿度），但是，包括直接太阳辐射暴露和踝草射流的局部效果也可能存在，并且可以影响室内热敏，特别是在高度玻璃的周边区域中。在这项工作中，引入了一种模拟框架来包含太阳辐射效应和脚踝射流效果，其分别显现为增加温暖和冷热感觉水平。新颖的建议的脚踝草案模型适应局部草案条件，这是第一次确定对整体热敏的影响。使用单区域模型使用加拿大多伦多的气候来证明该仿真框架，以说明使用可视化方法的热敏的三个主要窗口设计参数的效果：窗口尺寸，U因子和太阳能热增益系数。所有观察结果都与轶事证据对齐：温热热敏水平与窗口尺寸和太阳能热增益系数正相关，而冷热感觉水平与窗口大小和窗口U因子正相关。该仿真框架可用于分析建筑物设计阶段的现有建筑物或更新替代品中的周边区域的室内热敏和舒适性。

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