Microclimate Conditions in Rooms: Their Impact on Mold Development in Buildings

Orlik-Kożdoń, Bożena

doi:10.3390/en13174492

Cited by 9 publications

(3 citation statements)

References 28 publications

(29 reference statements)

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“…In this article, the improvement of the thermal envelope of the building was carried out in relation to the indicators of the internal microclimate in the building [12], its energy efficiency [13,14,15], and geometric data [16], as well as to the reasons of thermal bridges formation [17,18,19] and mold growth [7,20] in enclosures.…”

Section: Discussionmentioning

confidence: 99%

Energy Saving Architecture Concept: Buildings with Low Energy Consumption and Emissions in Kyrgyzstan

Boronbaev¹

2023

E3S Web of Conf.

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The adopted concept and examples of energy-saving architecture were the basis for improving the energy efficiency and thermal microclimate conditions of the building, reducing its greenhouse gas emissions. The appropriate location, shape, orientation, and dimensions of the building, its rooms, and enclosures, especially windows, and doors, are determined. The daily, seasonal, and year-round effects on the building of renewable energies of incoming solar radiation and the environment – the energy of outdoor air, base soil, wind, sky, and surfaces facing the building are considered. Buildings with small thermal envelope surfaces in a form of a national Kyrgyz yurt and a sphere have no architectural thermal bridges that cause microclimate disturbance and mold growth. The straw bale solar passive building has a similar performance to the Nearly Zero Energy building and the Green Building. It has minimal energy consumption, CO2 emissions, embodied energy, and a low carbon footprint of used straw bales, wood frames, and clay plasterwords.

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Section: Discussionmentioning

confidence: 99%

Energy Saving Architecture Concept: Buildings with Low Energy Consumption and Emissions in Kyrgyzstan

Boronbaev¹

2023

E3S Web of Conf.

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“…Continued corrosion of the metal can occur if the relative humidity is greater than 80% while the temperature is above 0 • C at the surface. With regard to mould growth, studies point to a maximum relative humidity limit of 75% to prevent it, as reported by Zhan et al [19] based on studies [24][25][26].…”

Section: Introductionmentioning

confidence: 92%

Experimental Assessment and Validation of the Hygrothermal Behaviour of an Innovative Light Steel Frame (LSF) Wall Incorporating a Monitoring System

Jerónimo,

Gonçalves,

Furtado

et al. 2023

Buildings

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Currently, the construction sector is witnessing a growing demand for lightweight solutions, which can be justified by the need to adopt high-performance solutions and the fact that the industry is struggling with a shortage of skilled labour. In this sense, this study focuses on a novel and flexible building wall system, constructed using an innovative extensible LSF profile. To enhance its functionality, a monitoring system comprising printed sensors was integrated into the wall. These sensors underwent a thorough verification process. To evaluate the hygrothermal performance of the complete LSF wall solution and validate the novel monitoring system, an extensive ageing test focused on heat/rain, freeze/thaw cycles was conducted on a large-scale wall prototype. Additionally, this research introduces a novel approach by simulating exceptional solar radiation conditions, surpassing the standard cycles outlined in EAD 040083-00-0404, for the first time in this kind of solution. The results cover the measurements taken inside the building system using the incorporated monitoring system. Additionally, supplementary external temperature and heat flow sensors were used to determine the thermal transmittance. Visual and thermography inspections were also carried out. The findings reveal no instances of failures or defects that could potentially impact the hygrothermal behaviour of the system. The hybrid LSF constructive solution leads to more stable temperatures on the inner surface. The presence of direct solar radiation can raise surface temperatures by up to 5 °C compared to surfaces not exposed to such radiation, even when a light-coloured surface is used. The monitoring system worked correctly. In conclusion, the innovative profile proved to be resistant to hygrothermal cycles and the monitoring system developed is efficient.

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“…SBS phenomenon commonly caused by the poor quality of temperature, humidity, and by the activity of spores, mycotoxins, and volatile compounds from toxic microorganisms such as fungus, bacteria, and other pathogenic organisms [9], [10]. However, many studies discussed that the microorganism, especially mold occurrence, is related to room microclimate [9], [11], [12].…”

Section: Introductionmentioning

confidence: 99%

Algae Facade Technology in Improving Air Quality and Building Health: Analysis of Microclimate and Growth ofAspergillus niger

Algifari¹,

Daniel²,

Nofdianto³

2023

Preprint

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This research was conducted in response to concerns about room comfort and the Sick Building Syndrome (SBS) phenomenon. The focus of this study was to examine the effect of photobioreactor (PBR) based algae facade on the room microclimate and growth of Aspergillus niger. A glass simulation chamber resembling the letter "U" with a size of 40 cm long, 40 cm wide, and 40 cm high has been used for the experiment. Twenty samples of Aspergillus niger were tested for 11 days in four simulation chambers and were given different treatments, two rooms were installed with PBR and the other two rooms were not installed PBR (control). The room with PBR had a relatively lower temperature and humidity in the peak phase with a difference of 4.3C and 5.5% RH compared to the control room. In addition, three out of ten molds in the PBR chamber had a growth rate of about 0.94 cm2/day and the spore production of 1.9x104 CFU/ml. Meanwhile, seven out of ten molds in the control room had a growth rate of 1.4 cm2/day and an average spore production of 5.4x104 CFU/ml. These results indicate that the algae facade is able to improve the microclimate of the room and suppress the growth rate of Aspergillus niger. mold in buildings. Keywords: Facade, Chlorella pyrenoidosa, Aspergillus niger, microclimate, photobioreactor

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Microclimate Conditions in Rooms: Their Impact on Mold Development in Buildings

Cited by 9 publications

References 28 publications

Energy Saving Architecture Concept: Buildings with Low Energy Consumption and Emissions in Kyrgyzstan

Energy Saving Architecture Concept: Buildings with Low Energy Consumption and Emissions in Kyrgyzstan

Experimental Assessment and Validation of the Hygrothermal Behaviour of an Innovative Light Steel Frame (LSF) Wall Incorporating a Monitoring System

Algae Facade Technology in Improving Air Quality and Building Health: Analysis of Microclimate and Growth ofAspergillus niger

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