Moisture Buffering Potential of Plasters for Energy Efficiency
in Modern Buildings

Fořt, Jan; Doleželová, Magdaléna; Černý, Robert

doi:10.3846/enviro.2017.254

Cited by 2 publications

(3 citation statements)

References 18 publications

(23 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To improve indoor air quality, people often replace indoor air with natural ventilation, adjusting the indoor temperature and humidity. In this case, the buffering capacity of the materials for indoor humidity will inevitably be affected [3]. This paper established different kinds of ventilation strategies, changing the air exchange rate across 1, 2, 3, and 4 ACH/h, and contrasted the outdoor humidity values hourly [39].…”

Section: The Effect Of Ventilation Strategy On Moisture Buffering Permentioning

confidence: 99%

“…Their effect depends on the difference in moisture content between the indoor and outdoor air and the capability of moisture exchange with the indoor air [2]. The use of hygroscopic materials can improve indoor air quality and human comfort [3,4]. Applying passive, new, environmentally friendly materials hygroscopic materials to the interior surface of exterior walls, has shown outstanding advantages [5].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Research on the Comprehensive Performance of Hygroscopic Materials in an Office Building Based on EnergyPlus

Cui

Shao

et al. 2019

Energies

View full text Add to dashboard Cite

This paper presents the research status of hygroscopic materials, points out the weak links as targets for major breakthroughs, and introduces humidifying mechanisms and their categories. In this paper, we simulated a single-monomer Shenyang office building with different envelopes of inner-surface hygroscopic materials for indoor humidity conditions, energy consumption, and economy, which are three aspects of energy consumption analysis in EnergyPlus software. To obtain the best moisture buffering performance from hygroscopic materials, we also simulated different cases including the laying area, ventilation strategy, thickness, and initial moisture content of different hygroscopic materials. The humidity fluctuation, with changes in the style of hygroscopic materials and usage conditions, of a room in a building can be analyzed by numerical simulation. This allows the determination of the best moisture buffering performance of the building structure. The results show that hygroscopic materials have great advantages in three energy saving aspects of building assessment. Hygroscopic materials can regulate indoor air humidity and reduce energy consumption. In addition, the entire life-cycle cost can be minimized. Lower rates of air exchange and larger usable areas can help enhance the level of performance of hygroscopic materials. The thickness and initial moisture content of hygroscopic materials have little impact on the moisture buffering value. This study strived to provide a theoretical basis and technical guidance for the production and installation of hygroscopic materials. It also promoted the passive materials market and the building’s energy savings. The best moisture buffering performance, evaluated at room level in this paper, can be obtained through real-world environmental simulation.

show abstract

Section: The Effect Of Ventilation Strategy On Moisture Buffering Permentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research on the Comprehensive Performance of Hygroscopic Materials in an Office Building Based on EnergyPlus

Cui

Shao

et al. 2019

Energies

View full text Add to dashboard Cite

show abstract

“…In addition, the whole life cycle cost can be minimized. Therefore, hygroscopic materials can improve human comfort [3,10].…”

Section: Introductionmentioning

confidence: 99%

Effect of Water Immersion on Raw and Expanded Ugandan Vermiculite

Marcos

2021

Minerals

View full text Add to dashboard Cite

Effect of water immersion at different times (from 1/2h to 24 h) on raw and expanded vermiculite from Uganda was investigated. The expansion was carried out by electrical heating at different temperatures and by irradiation with microwaves. After, the expansibility (k) and the water absorption content (WA) were obtained and the samples were characterized. The elemental and mineral composition was determined by X-ray fluorescence and X-ray diffraction, respectively; the thermal behavior by thermal gravimetric analyses; and the textural parameters by BET. The expansibility of Ugandan vermiculite is relatively lower than the other commercial vermiculites due basically to its lower K2O content (0.36%) and higher water content (about 20%). The water absorption capacity of samples significantly increased with the increase in heating temperature. The maximum WA content, about 130 mg/g, was obtained at 900 °C for 24 h. The loss of water during the expansion process in the Ugandan vermiculite caused loss of structural order and crystallinity. Moreover, in the samples expanded and subsequently immersed in water, the structural order and crystallinity increased with increasing WA values. Specific surface area and porosity hardly vary with temperature and are practically independent of vermiculite purity. Expanded commercial vermiculites could be a suitable hygroscopic material, given its efficient water absorption. Microwave expanded commercial vermiculites, in this case, would not be recommended

show abstract

Moisture Buffering Potential of Plasters for Energy Efficiency in Modern Buildings

Cited by 2 publications

References 18 publications

Research on the Comprehensive Performance of Hygroscopic Materials in an Office Building Based on EnergyPlus

Research on the Comprehensive Performance of Hygroscopic Materials in an Office Building Based on EnergyPlus

Effect of Water Immersion on Raw and Expanded Ugandan Vermiculite

Contact Info

Product

Resources

About