Determining of the role of ventilation in residential energy demand reduction using a heat-balance approach
Determining of the role of ventilation in residential energy demand reduction using a heat-balance approach
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DOI：
10.1016/j.buildenv.2018.08.053
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发表时间：
2018-10
影响因子：
7.4
通讯作者：
Paula Cosar-Jorda;R. Buswell;V. Mitchell
中科院分区：
文献类型：
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作者：
Paula Cosar-Jorda;R. Buswell;V. Mitchell
家庭建筑的通风可能会对能源消耗产生重大影响，但众所周知，它很难量化，需要使用繁琐且昂贵的物理测试方法。能源需求减少分析通常忽略通风的影响，因此不可能为特定家庭提供平衡的建议。本文描述了一种简单的稳态热平衡计算方法，并辅之以监测数据，以模拟将通风率降低到最低标准的效果。关键的一步是确定每日平均空气变化率，该方法被证明产生了可信的估计，然后可以用来确定对能源需求的影响。该方法的好处包括改进了能源需求分类，定制了能源需求减少评估，并为开发更好的通风模型提供了一种手段，用于建筑性能分析。
Ventilation in domestic buildings can have a significant impact on energy consumption but it is notoriously difficult to quantify, requiring physical test methods that are cumbersome and costly to apply. Energy demand reduction analyses routinely neglect the impact of ventilation and so offering well balanced advice for specific households is not possible. This paper describes a simple steady-state, heat-balance calculation method that is supplemented with monitoring data to model the effectiveness of reducing ventilation rates to minimum standards for individual homes. A key step is to determine the daily mean air change rate and the method is shown to yield plausible estimates that can then be used to establish the impact on energy demand. The benefits of the approach include improved energy demand disaggregation, customised energy demand reduction assessment and offers a means to underpin the development of better models of ventilation for building performance analysis.