Heat and mass transfer between indoor air and a permeable and hygroscopic building envelope

Part I - Field measurements

Carey J. Simonson (Corresponding Author), Mikael Salonvaara, Tuomo Ojanen

Research output: Contribution to journalArticleScientificpeer-review

50 Citations (Scopus)

Abstract

In this paper, measurements are presented which quantify the mass transfer of tracer gases and water vapor between indoor air and a permeable and hygroscopic building envelope. The transfer of tracer gases through the envelope requires the entire envelope to be permeable, while the transfer of moisture requires sufficient hygroscopic mass to be in contact with the indoor air. The results show that mass transfer can improve the indoor air quality and climate. The diffusion of gases through the building envelope significantly increases the effective ventilation rate for poorly ventilated rooms, but only moderately increases the effective ventilation for well-ventilated rooms. Moisture transfer, on the other hand, has a significant influence on the indoor humidity for both poorly and well-ventilated rooms.
Original languageEnglish
Pages (from-to)63 - 101
Number of pages39
JournalJournal of Thermal Envelope and Building Science
Volume28
Issue number1
DOIs
Publication statusPublished - 2004
MoE publication typeA1 Journal article-refereed

Fingerprint

Mass transfer
Gases
Heat transfer
Ventilation
Moisture
Air
Steam
Air quality
Contacts (fluid mechanics)
Water vapor
Atmospheric humidity

Cite this

@article{d357e0aeb0c24fcb8ecd45acac97ce8f,
title = "Heat and mass transfer between indoor air and a permeable and hygroscopic building envelope: Part I - Field measurements",
abstract = "In this paper, measurements are presented which quantify the mass transfer of tracer gases and water vapor between indoor air and a permeable and hygroscopic building envelope. The transfer of tracer gases through the envelope requires the entire envelope to be permeable, while the transfer of moisture requires sufficient hygroscopic mass to be in contact with the indoor air. The results show that mass transfer can improve the indoor air quality and climate. The diffusion of gases through the building envelope significantly increases the effective ventilation rate for poorly ventilated rooms, but only moderately increases the effective ventilation for well-ventilated rooms. Moisture transfer, on the other hand, has a significant influence on the indoor humidity for both poorly and well-ventilated rooms.",
author = "Simonson, {Carey J.} and Mikael Salonvaara and Tuomo Ojanen",
year = "2004",
doi = "10.1177/1097196304044395",
language = "English",
volume = "28",
pages = "63 -- 101",
journal = "Journal of Building Physics",
issn = "1744-2591",
publisher = "SAGE Publications",
number = "1",

}

Heat and mass transfer between indoor air and a permeable and hygroscopic building envelope : Part I - Field measurements. / Simonson, Carey J. (Corresponding Author); Salonvaara, Mikael; Ojanen, Tuomo.

In: Journal of Thermal Envelope and Building Science, Vol. 28, No. 1, 2004, p. 63 - 101.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Heat and mass transfer between indoor air and a permeable and hygroscopic building envelope

T2 - Part I - Field measurements

AU - Simonson, Carey J.

AU - Salonvaara, Mikael

AU - Ojanen, Tuomo

PY - 2004

Y1 - 2004

N2 - In this paper, measurements are presented which quantify the mass transfer of tracer gases and water vapor between indoor air and a permeable and hygroscopic building envelope. The transfer of tracer gases through the envelope requires the entire envelope to be permeable, while the transfer of moisture requires sufficient hygroscopic mass to be in contact with the indoor air. The results show that mass transfer can improve the indoor air quality and climate. The diffusion of gases through the building envelope significantly increases the effective ventilation rate for poorly ventilated rooms, but only moderately increases the effective ventilation for well-ventilated rooms. Moisture transfer, on the other hand, has a significant influence on the indoor humidity for both poorly and well-ventilated rooms.

AB - In this paper, measurements are presented which quantify the mass transfer of tracer gases and water vapor between indoor air and a permeable and hygroscopic building envelope. The transfer of tracer gases through the envelope requires the entire envelope to be permeable, while the transfer of moisture requires sufficient hygroscopic mass to be in contact with the indoor air. The results show that mass transfer can improve the indoor air quality and climate. The diffusion of gases through the building envelope significantly increases the effective ventilation rate for poorly ventilated rooms, but only moderately increases the effective ventilation for well-ventilated rooms. Moisture transfer, on the other hand, has a significant influence on the indoor humidity for both poorly and well-ventilated rooms.

U2 - 10.1177/1097196304044395

DO - 10.1177/1097196304044395

M3 - Article

VL - 28

SP - 63

EP - 101

JO - Journal of Building Physics

JF - Journal of Building Physics

SN - 1744-2591

IS - 1

ER -