Influence of environmental factors favorable to the development and proliferation of mold in residential buildings in tropical climates
Influence of environmental factors favorable to the development and proliferation of mold in residential buildings in tropical climates
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DOI：
10.1016/j.buildenv.2019.106421
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发表时间：
2019-12
影响因子：
7.4
通讯作者：
Vinicius de Castro Silveira;Mônica Martins Pinto;Fernando Simon Westphal
中科院分区：
文献类型：
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作者：
Vinicius de Castro Silveira;Mônica Martins Pinto;Fernando Simon Westphal
在建筑物中可能出现的疾病中，潮湿气候中的主要发生之一是霉菌的出现。围护结构内表面的霉菌生长并不完全是由于建筑施工和防水的失败。空气相对湿度、内部空气温度和表面冷凝等因素都是可能导致霉菌出现的方面。在这种情况下，本研究进行，以了解使用隔热和太阳能的墙壁在自然通风住宅中的霉菌生长的方向的影响。这项研究是在位于南美洲的巴西弗洛里亚诺波利斯的潮湿温带气候（柯本Cfa）中进行的。为此，在EnergyPlus软件8.8版中进行了模拟。通过改变外墙中隔热材料的使用来模拟住宅：在墙的内侧隔热，在墙的外侧隔热和没有隔热的墙。采用了两个太阳方向，即北方和南方。根据发现的结果，观察到建设性参数如何影响模具的形成和生长的理想条件发生的时期。结果发现，当房间朝北时，满足霉菌出现条件的长时间发生较少。还观察到，在比较建筑系统之间的性能时，不使用隔热材料减少了这些情况。这种影响也是由于该模型中空气变化的增加而发生的。
Among the possible pathologies in buildings, one of the main occurrences in humid climates is the appearance of mold. The mold growth on envelope inside surfaces is not exclusively due to failure on building execution and waterproofing. Factors such as, the air relative humidity, inside air temperature, and surface condensation, are aspects that could cause the mold emergence. In this context, the present research was carried out in order to understand the influence of the use of thermal insulation and the solar orientation of the walls in the mold growth in naturally ventilated residences. This study is developed in the humid temperate climate (Köppen Cfa) of Florianópolis, Brazil, located in South America. For this, simulations in the EnergyPlus software, version 8.8, were performed. The residence was simulated by varying the use of thermal insulation in external walls: thermal insulation on the internal side of the wall, insulation on the outer side of the wall and wall without insulation. Two solar orientations were adopted, being north and south. Based on the results found, it was observed how the constructive parameters affect the periods of occurrence of ideal conditions for formation and growth of the mold. It was found that when the rooms were facing north, fewer occurrences of long periods satisfying the conditions for the appearance of the mold occurred. It was also observed that the non-use of thermal insulation reduced these occurrences when the performance among construction systems was compared. This effect also occurred due to the increase in air changes in this model.