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Building Leakage, Infiltration, And Energy Performance Analyses For Finnish Detached Houses

机译：芬兰独立式住宅的建筑渗漏，渗透和能效分析

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摘要

This study focuses on the relation between the airtightness of a building envelope, infiltration, and energy use of a typical modern Finnish detached house in the cold climate of Finland. The study is conducted with an empirically tested dynamic IDA-ICE simulation model of a detached house. The effect of several factors, such as Finnish climate and wind conditions, balance of ventilation system and leakage distribution, on infiltration was studied and a simple adapted model for the rough estimation of annual infiltration in Finnish detached houses was determined from the numerical simulation results. The energy impact of infiltration is also studied, taking into account the infiltration heat recovery effect. According to the results, infiltration causes about 15-30% of the energy use of space heating including ventilation in the typical Finnish detached house. The average infiltration rate and heat energy use increase almost linearly with the building leakage rate n_(50). Finland can be roughly divided into two zones based on the average infiltration rate of detached houses, for which stack-induced infiltration is typically dominant, regardless of the climate zone. The infiltration heat recovery effect is minor in the studied detached house.
机译：这项研究的重点是在芬兰寒冷的气候中，典型的现代芬兰独立式住宅的建筑密闭性，渗透性和能源使用之间的关系。该研究是通过经验测试的独立住宅的动态IDA-ICE仿真模型进行的。研究了芬兰气候和风条件，通风系统的平衡和泄漏分布等几个因素对入渗的影响，并通过数值模拟结果确定了一个简单的适应模型，用于粗略估算芬兰独立式住宅的年入渗量。考虑到渗透热回收效果，还研究了渗透的能量影响。根据结果​​，在典型的芬兰独立式住宅中，渗透导致空间供暖（包括通风）的能耗约占15-30％。平均渗透率和热能使用量几乎随建筑物泄漏率n_（50）线性增加。根据独立式住宅的平均渗透率，可以将芬兰大致分为两个区域，无论气候区域如何，通常由堆栈引起的渗透占主导地位。在所研究的独立式住宅中，渗透热回收效果很小。

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