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EXPERIMENTAL QUANTIFICATION OF THE OPERATIVE TIME OF A PASSIVE HVAC SYSTEM USING POROUS COVERING MATERIALS

Volume 13, Issue 7, 2010, pp. 637-643
DOI: 10.1615/JPorMedia.v13.i7.50
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ABSTRACT

Permeable coverings are porous materials that improve partial vapor pressure and thereby the agreeable nature of the indoor environment and local thermal comfort, while also saving energy. This is a consequence of the damping effect of materials on air humidity and is determined by the rate at which real buildings absorb moisture. This rate cannot be predicted using sorption isotherm data and has to be obtained experimentally. A new experimental method to obtain the real storage capacity and rate of sorption of covering materials is presented. A significance analysis showed that permeable coverings have an effect in indoor air conditions, not only during the first hours of occupation but also throughout the day. The maximum effect occurs during the early period (between 0900 LT and 1400 LT) and includes the 4-hour period after the office is closed. The results show that the sorption of water vapor in the porous envelope has a greater effect on indoor humidity than ventilating the room with 0.5 ach.

CITED BY
  1. Nematchoua Modeste Kameni, Tchinda René, Orosa José A., Andreasi Wagner Augusto, Effect of wall construction materials over indoor air quality in humid and hot climate, Journal of Building Engineering, 3, 2015. Crossref

  2. Orosa José A., Vergara Diego, Costa Ángel M., Bouzón Rebeca, A Novel Method Based on Neural Networks for Designing Internal Coverings in Buildings: Energy Saving and Thermal Comfort, Applied Sciences, 9, 10, 2019. Crossref

  3. Orosa José A., Vergara Diego, Costa Ángel M., Bouzón Rebeca, A Novel Method for nZEB Internal Coverings Design Based on Neural Networks, Coatings, 9, 5, 2019. Crossref

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