Short Term Airing by Natural Ventilation

Implications on IAQ and Thermal Comfort

Per Heiselberg, M. Perino

Research output: Contribution to journalJournal articleResearchpeer-review

20 Citations (Scopus)

Abstract

The need to improve the energy efficiency of buildings requires new and more efficient ventilation systems. It has been demonstrated that innovative operating concepts that make use of natural ventilation seem to be more appreciated by occupants. Among the available ventilation strategies that are currently available, buoyancy driven, single-sided natural ventilation has proved to be very effective and can provide high air change rates for temperature and Indoor Air Quality (IAQ) control. However, to promote a wider distribution of these systems an improvement in the knowledge of their working principles is necessary. The present study analyses and presents the results of an experimental evaluation of airing performance in terms of ventilation characteristics, IAQ and thermal comfort. It includes investigations of the consequences of opening time, opening frequency, opening area and expected airflow rate, ventilation efficiency, thermal comfort and dynamic temperature conditions. A suitable laboratory test rig was developed to perform extensive experimental analyses of the phenomenon under controlled and repeatable conditions. The results showed that short-term window airing is very effective and can provide both acceptable IAQ and thermal comfort conditions in buildings.
Original languageEnglish
JournalIndoor Air
Volume20
Issue number2
Pages (from-to)126-140
Number of pages15
ISSN0905-6947
DOIs
Publication statusPublished - 2010

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Indoor Air Pollution
Thermal comfort
Air quality
Ventilation
Hot Temperature
Temperature
Buoyancy
Quality Control
Quality control
Energy efficiency
Air

Keywords

  • Short-term airing
  • Natural ventilation
  • Thermal comfort
  • Indoor air quality
  • Ventilation efficiency

Cite this

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title = "Short Term Airing by Natural Ventilation: Implications on IAQ and Thermal Comfort",
abstract = "The need to improve the energy efficiency of buildings requires new and more efficient ventilation systems. It has been demonstrated that innovative operating concepts that make use of natural ventilation seem to be more appreciated by occupants. Among the available ventilation strategies that are currently available, buoyancy driven, single-sided natural ventilation has proved to be very effective and can provide high air change rates for temperature and Indoor Air Quality (IAQ) control. However, to promote a wider distribution of these systems an improvement in the knowledge of their working principles is necessary. The present study analyses and presents the results of an experimental evaluation of airing performance in terms of ventilation characteristics, IAQ and thermal comfort. It includes investigations of the consequences of opening time, opening frequency, opening area and expected airflow rate, ventilation efficiency, thermal comfort and dynamic temperature conditions. A suitable laboratory test rig was developed to perform extensive experimental analyses of the phenomenon under controlled and repeatable conditions. The results showed that short-term window airing is very effective and can provide both acceptable IAQ and thermal comfort conditions in buildings.",
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Short Term Airing by Natural Ventilation : Implications on IAQ and Thermal Comfort. / Heiselberg, Per; Perino, M.

In: Indoor Air, Vol. 20, No. 2, 2010, p. 126-140.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Short Term Airing by Natural Ventilation

T2 - Implications on IAQ and Thermal Comfort

AU - Heiselberg, Per

AU - Perino, M.

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AB - The need to improve the energy efficiency of buildings requires new and more efficient ventilation systems. It has been demonstrated that innovative operating concepts that make use of natural ventilation seem to be more appreciated by occupants. Among the available ventilation strategies that are currently available, buoyancy driven, single-sided natural ventilation has proved to be very effective and can provide high air change rates for temperature and Indoor Air Quality (IAQ) control. However, to promote a wider distribution of these systems an improvement in the knowledge of their working principles is necessary. The present study analyses and presents the results of an experimental evaluation of airing performance in terms of ventilation characteristics, IAQ and thermal comfort. It includes investigations of the consequences of opening time, opening frequency, opening area and expected airflow rate, ventilation efficiency, thermal comfort and dynamic temperature conditions. A suitable laboratory test rig was developed to perform extensive experimental analyses of the phenomenon under controlled and repeatable conditions. The results showed that short-term window airing is very effective and can provide both acceptable IAQ and thermal comfort conditions in buildings.

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