The Influence of Draught on a Seat with Integrated Personalized Ventilation

Peter V. Nielsen, Ewa Barszcz, Tomasz Czarnota, Dariusz P. Dymalski, Michal A. Jasienski, Artur Nowotka, Agata Mozer, Sylwia M. Wiankowska, Rasmus Lund Jensen

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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Abstract

Normally we protect ourselves from cross infection by supplying fresh air to a room by a diffuser, and this air is distributed in the room according to different principles such as: mixing ventilation, displacement ventilation, vertical ventilation, etc. Often this air distribution has the consequence that it is necessary to supply a very large amount of air to the whole room to obtain a sufficient dilution of the airborne infections.

When people are seated, a way to supply air direct to the breathing zone is to use "Personalized Ventilation". Personalized ventilation has shown to be very efficient in the protection of people from cross infection.

A personalized ventilation device has been developed in the form of a neck support pillow. The air is supplied to the free convection boundary layer of the person, and the layer then transports the air to the breathing zone. The velocities in this process are very small and draught may be able to disturb the process. Therefore, this research work deals with the effectiveness of the system with different levels and directions of draught.

The measurements are made with a full-scale manikin in a wind tunnel. The results show that the boundary layer and the process in the breathing zone are rather independent of draught at velocities up to 0.2 m/s.

Original languageEnglish
Title of host publicationProceedings of Indoor Air 2008 : The 11th International Conference on Indoor Air Quality and Climate, Copenhagen, Denmark, 17 - 22 August, 2008
Number of pages8
PublisherTechnical University of Denmark (DTU)
Publication date2008
Publication statusPublished - 2008
EventInternational Conference on Indoor Air Quality and Climate - Copenhagen, Denmark
Duration: 17 Aug 200822 Aug 2008
Conference number: 11

Conference

ConferenceInternational Conference on Indoor Air Quality and Climate
Number11
CountryDenmark
CityCopenhagen
Period17/08/200822/08/2008

Fingerprint

Seats
Ventilation
Air
Boundary layers
Diffusers (fluid)
Natural convection
Dilution
Wind tunnels

Bibliographical note

Published on an USB

Keywords

  • Airborne cross infection
  • Personal ventilation
  • Aircraft seat
  • Neck support pillow
  • Room air distribution

Cite this

Nielsen, P. V., Barszcz, E., Czarnota, T., Dymalski, D. P., Jasienski, M. A., Nowotka, A., ... Jensen, R. L. (2008). The Influence of Draught on a Seat with Integrated Personalized Ventilation. In Proceedings of Indoor Air 2008: The 11th International Conference on Indoor Air Quality and Climate, Copenhagen, Denmark, 17 - 22 August, 2008 Technical University of Denmark (DTU).
Nielsen, Peter V. ; Barszcz, Ewa ; Czarnota, Tomasz ; Dymalski, Dariusz P. ; Jasienski, Michal A. ; Nowotka, Artur ; Mozer, Agata ; Wiankowska, Sylwia M. ; Jensen, Rasmus Lund. / The Influence of Draught on a Seat with Integrated Personalized Ventilation. Proceedings of Indoor Air 2008: The 11th International Conference on Indoor Air Quality and Climate, Copenhagen, Denmark, 17 - 22 August, 2008. Technical University of Denmark (DTU), 2008.
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abstract = "Normally we protect ourselves from cross infection by supplying fresh air to a room by a diffuser, and this air is distributed in the room according to different principles such as: mixing ventilation, displacement ventilation, vertical ventilation, etc. Often this air distribution has the consequence that it is necessary to supply a very large amount of air to the whole room to obtain a sufficient dilution of the airborne infections. When people are seated, a way to supply air direct to the breathing zone is to use {"}Personalized Ventilation{"}. Personalized ventilation has shown to be very efficient in the protection of people from cross infection. A personalized ventilation device has been developed in the form of a neck support pillow. The air is supplied to the free convection boundary layer of the person, and the layer then transports the air to the breathing zone. The velocities in this process are very small and draught may be able to disturb the process. Therefore, this research work deals with the effectiveness of the system with different levels and directions of draught. The measurements are made with a full-scale manikin in a wind tunnel. The results show that the boundary layer and the process in the breathing zone are rather independent of draught at velocities up to 0.2 m/s.",
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author = "Nielsen, {Peter V.} and Ewa Barszcz and Tomasz Czarnota and Dymalski, {Dariusz P.} and Jasienski, {Michal A.} and Artur Nowotka and Agata Mozer and Wiankowska, {Sylwia M.} and Jensen, {Rasmus Lund}",
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Nielsen, PV, Barszcz, E, Czarnota, T, Dymalski, DP, Jasienski, MA, Nowotka, A, Mozer, A, Wiankowska, SM & Jensen, RL 2008, The Influence of Draught on a Seat with Integrated Personalized Ventilation. in Proceedings of Indoor Air 2008: The 11th International Conference on Indoor Air Quality and Climate, Copenhagen, Denmark, 17 - 22 August, 2008. Technical University of Denmark (DTU), International Conference on Indoor Air Quality and Climate, Copenhagen, Denmark, 17/08/2008.

The Influence of Draught on a Seat with Integrated Personalized Ventilation. / Nielsen, Peter V.; Barszcz, Ewa; Czarnota, Tomasz; Dymalski, Dariusz P.; Jasienski, Michal A.; Nowotka, Artur; Mozer, Agata; Wiankowska, Sylwia M.; Jensen, Rasmus Lund.

Proceedings of Indoor Air 2008: The 11th International Conference on Indoor Air Quality and Climate, Copenhagen, Denmark, 17 - 22 August, 2008. Technical University of Denmark (DTU), 2008.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

TY - GEN

T1 - The Influence of Draught on a Seat with Integrated Personalized Ventilation

AU - Nielsen, Peter V.

AU - Barszcz, Ewa

AU - Czarnota, Tomasz

AU - Dymalski, Dariusz P.

AU - Jasienski, Michal A.

AU - Nowotka, Artur

AU - Mozer, Agata

AU - Wiankowska, Sylwia M.

AU - Jensen, Rasmus Lund

N1 - Published on an USB

PY - 2008

Y1 - 2008

N2 - Normally we protect ourselves from cross infection by supplying fresh air to a room by a diffuser, and this air is distributed in the room according to different principles such as: mixing ventilation, displacement ventilation, vertical ventilation, etc. Often this air distribution has the consequence that it is necessary to supply a very large amount of air to the whole room to obtain a sufficient dilution of the airborne infections. When people are seated, a way to supply air direct to the breathing zone is to use "Personalized Ventilation". Personalized ventilation has shown to be very efficient in the protection of people from cross infection. A personalized ventilation device has been developed in the form of a neck support pillow. The air is supplied to the free convection boundary layer of the person, and the layer then transports the air to the breathing zone. The velocities in this process are very small and draught may be able to disturb the process. Therefore, this research work deals with the effectiveness of the system with different levels and directions of draught. The measurements are made with a full-scale manikin in a wind tunnel. The results show that the boundary layer and the process in the breathing zone are rather independent of draught at velocities up to 0.2 m/s.

AB - Normally we protect ourselves from cross infection by supplying fresh air to a room by a diffuser, and this air is distributed in the room according to different principles such as: mixing ventilation, displacement ventilation, vertical ventilation, etc. Often this air distribution has the consequence that it is necessary to supply a very large amount of air to the whole room to obtain a sufficient dilution of the airborne infections. When people are seated, a way to supply air direct to the breathing zone is to use "Personalized Ventilation". Personalized ventilation has shown to be very efficient in the protection of people from cross infection. A personalized ventilation device has been developed in the form of a neck support pillow. The air is supplied to the free convection boundary layer of the person, and the layer then transports the air to the breathing zone. The velocities in this process are very small and draught may be able to disturb the process. Therefore, this research work deals with the effectiveness of the system with different levels and directions of draught. The measurements are made with a full-scale manikin in a wind tunnel. The results show that the boundary layer and the process in the breathing zone are rather independent of draught at velocities up to 0.2 m/s.

KW - Airborne cross infection

KW - Personal ventilation

KW - Aircraft seat

KW - Neck support pillow

KW - Room air distribution

M3 - Article in proceeding

BT - Proceedings of Indoor Air 2008

PB - Technical University of Denmark (DTU)

ER -

Nielsen PV, Barszcz E, Czarnota T, Dymalski DP, Jasienski MA, Nowotka A et al. The Influence of Draught on a Seat with Integrated Personalized Ventilation. In Proceedings of Indoor Air 2008: The 11th International Conference on Indoor Air Quality and Climate, Copenhagen, Denmark, 17 - 22 August, 2008. Technical University of Denmark (DTU). 2008