Indoor Air Design Parameters of Air Conditioners for Mold-Prevention and Antibacterial in Island Residential Buildings

Xueyan Zhang, Jingyi Liang, Beibei Wang, Yang Lv and Jingchao Xie
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Xueyan Zhang: School of Civil Engineering, Dalian University of Technology, Dalian 116024, China
Jingyi Liang: School of Civil Engineering, Dalian University of Technology, Dalian 116024, China
Beibei Wang: School of Civil Engineering, Dalian University of Technology, Dalian 116024, China
Yang Lv: School of Civil Engineering, Dalian University of Technology, Dalian 116024, China
Jingchao Xie: School of Construction Engineering, Beijing University of Technology, Beijing 100000, China

IJERPH, 2020, vol. 17, issue 19, 1-16

Abstract: The climate characteristics of the islands in the Nansha Islands of China are a typical marine climate including high temperature, high relative humidity, high salt content, strong solar radiation, and long sunshine. These can provide suitable conditions for mold reproduction on the surface of the wall in a building. Therefore, mildew pollution on the wall for a long time can easily damage the building’s structure. It does not only directly affect the appearance of the building, but also indirectly affects the indoor environment and human health. In this paper, dominant fungi in the residential buildings on thee Nansha Islands of China are Aspergillus , Penicillium, and Cladosporium . Critical lines of temperature and relative humidity for mould growth on the interior surfaces of island residential building envelopes have been given and discussed. The results show that the risk of mould growth on the wall with different materials, from low to high, is reinforced concrete, aerated concrete block, coral aggregate, brick, and wood. Furthermore, in order to prevent the room regulated by air conditioner from being contaminated by mould, indoor air temperature should be set variable and controlled between 26 °C and 28 °C, the relative humidity should be changed between 50% and 80%.

Keywords: island residential buildings; dominant fungi; design parameters of air conditioner; mold-prevention and antibacterial (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
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