The effect of the strength of asymmetric heat load on indoor air quality with diffuse ceiling ventilation

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Standard

The effect of the strength of asymmetric heat load on indoor air quality with diffuse ceiling ventilation. / Zhao, Weixin; Lestinen, Sami; Kilpeläinen, Simo; Kosonen, Risto; Jokisalo, Juha.

Proceedings of Roomvent & Ventilation 2018, 2-5th of June 2018, Espoo, Finland. ed. / Risto Kosonen; Mervi Ahola; Jarkko Narvanne. SIY SISÄILMATIETO OY, 2018. p. 271-276 32.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Harvard

Zhao, W, Lestinen, S, Kilpeläinen, S, Kosonen, R & Jokisalo, J 2018, The effect of the strength of asymmetric heat load on indoor air quality with diffuse ceiling ventilation. in R Kosonen, M Ahola & J Narvanne (eds), Proceedings of Roomvent & Ventilation 2018, 2-5th of June 2018, Espoo, Finland., 32, SIY SISÄILMATIETO OY, pp. 271-276, Roomvent & Ventilation
, Espoo, Finland, 02/06/2018.

APA

Zhao, W., Lestinen, S., Kilpeläinen, S., Kosonen, R., & Jokisalo, J. (2018). The effect of the strength of asymmetric heat load on indoor air quality with diffuse ceiling ventilation. In R. Kosonen, M. Ahola, & J. Narvanne (Eds.), Proceedings of Roomvent & Ventilation 2018, 2-5th of June 2018, Espoo, Finland (pp. 271-276). [32] SIY SISÄILMATIETO OY.

Vancouver

Zhao W, Lestinen S, Kilpeläinen S, Kosonen R, Jokisalo J. The effect of the strength of asymmetric heat load on indoor air quality with diffuse ceiling ventilation. In Kosonen R, Ahola M, Narvanne J, editors, Proceedings of Roomvent & Ventilation 2018, 2-5th of June 2018, Espoo, Finland. SIY SISÄILMATIETO OY. 2018. p. 271-276. 32

Author

Zhao, Weixin ; Lestinen, Sami ; Kilpeläinen, Simo ; Kosonen, Risto ; Jokisalo, Juha. / The effect of the strength of asymmetric heat load on indoor air quality with diffuse ceiling ventilation. Proceedings of Roomvent & Ventilation 2018, 2-5th of June 2018, Espoo, Finland. editor / Risto Kosonen ; Mervi Ahola ; Jarkko Narvanne. SIY SISÄILMATIETO OY, 2018. pp. 271-276

Bibtex - Download

@inproceedings{a3d30a43262845099f5be7e6a83a2093,
title = "The effect of the strength of asymmetric heat load on indoor air quality with diffuse ceiling ventilation",
abstract = "Indoor air quality has a significant effect on performance of building occupants. In this paper, indoor air quality was studied when the heat load was located asymmetrically with diffuse ceiling ventilation. The test chamber was furnished like an office room with two laptops and two monitors, a heated manikin and a heated dummy. The highest heat load was 53 W/m² and reduced to 27 W/m² in three cases. The outdoor air was supplied through diffuse ceiling. The air flow rate used was 4.8 l/s∙ m², 3.9 l/s∙m² and 2.0 l/s∙ m² in the cases of 53 W/ m², 41 W/ m² and 27 W/ m². In term of the air change efficiency, the value of efficiency varied between 50{\%} and 54.7{\%}. Those values of air change efficiency are slightly better than the standard mixing ventilation. The observations indicate that the highest value of the mean age of air (67.7 minutes) is for 27 W/ m² and the lowest value of the mean age of air (21.6 minutes) is for 53 W/ m². The convection flows has a significant influence on air distribution. However, air change efficiency was above 50{\%} in every measured location and the performance of the diffused ceiling ventilation is like fully mixed ventilation.",
author = "Weixin Zhao and Sami Lestinen and Simo Kilpel{\"a}inen and Risto Kosonen and Juha Jokisalo",
year = "2018",
month = "6",
day = "5",
language = "English",
pages = "271--276",
editor = "Risto Kosonen and Mervi Ahola and Jarkko Narvanne",
booktitle = "Proceedings of Roomvent & Ventilation 2018, 2-5th of June 2018, Espoo, Finland",
publisher = "SIY SIS{\"A}ILMATIETO OY",
address = "Finland",

}

RIS - Download

TY - GEN

T1 - The effect of the strength of asymmetric heat load on indoor air quality with diffuse ceiling ventilation

AU - Zhao, Weixin

AU - Lestinen, Sami

AU - Kilpeläinen, Simo

AU - Kosonen, Risto

AU - Jokisalo, Juha

PY - 2018/6/5

Y1 - 2018/6/5

N2 - Indoor air quality has a significant effect on performance of building occupants. In this paper, indoor air quality was studied when the heat load was located asymmetrically with diffuse ceiling ventilation. The test chamber was furnished like an office room with two laptops and two monitors, a heated manikin and a heated dummy. The highest heat load was 53 W/m² and reduced to 27 W/m² in three cases. The outdoor air was supplied through diffuse ceiling. The air flow rate used was 4.8 l/s∙ m², 3.9 l/s∙m² and 2.0 l/s∙ m² in the cases of 53 W/ m², 41 W/ m² and 27 W/ m². In term of the air change efficiency, the value of efficiency varied between 50% and 54.7%. Those values of air change efficiency are slightly better than the standard mixing ventilation. The observations indicate that the highest value of the mean age of air (67.7 minutes) is for 27 W/ m² and the lowest value of the mean age of air (21.6 minutes) is for 53 W/ m². The convection flows has a significant influence on air distribution. However, air change efficiency was above 50% in every measured location and the performance of the diffused ceiling ventilation is like fully mixed ventilation.

AB - Indoor air quality has a significant effect on performance of building occupants. In this paper, indoor air quality was studied when the heat load was located asymmetrically with diffuse ceiling ventilation. The test chamber was furnished like an office room with two laptops and two monitors, a heated manikin and a heated dummy. The highest heat load was 53 W/m² and reduced to 27 W/m² in three cases. The outdoor air was supplied through diffuse ceiling. The air flow rate used was 4.8 l/s∙ m², 3.9 l/s∙m² and 2.0 l/s∙ m² in the cases of 53 W/ m², 41 W/ m² and 27 W/ m². In term of the air change efficiency, the value of efficiency varied between 50% and 54.7%. Those values of air change efficiency are slightly better than the standard mixing ventilation. The observations indicate that the highest value of the mean age of air (67.7 minutes) is for 27 W/ m² and the lowest value of the mean age of air (21.6 minutes) is for 53 W/ m². The convection flows has a significant influence on air distribution. However, air change efficiency was above 50% in every measured location and the performance of the diffused ceiling ventilation is like fully mixed ventilation.

M3 - Conference contribution

SP - 271

EP - 276

BT - Proceedings of Roomvent & Ventilation 2018, 2-5th of June 2018, Espoo, Finland

A2 - Kosonen, Risto

A2 - Ahola, Mervi

A2 - Narvanne, Jarkko

PB - SIY SISÄILMATIETO OY

ER -

ID: 31198862