Impact of room temperature on human carbon dioxide emission rates at different physical activity levels

Kazuki Kuga; Pawel Wargocki; Kazuhide Ito

Impact of room temperature on human carbon dioxide emission rates at different physical activity levels

Kazuki Kuga^*, Pawel Wargocki, Kazuhide Ito

^*Corresponding author for this work

Kyushu University

Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review

Abstract

This study examined the impact of room temperature on carbon dioxide (CO₂) emission rates from humans at three different physical activity levels: sitting, standing, and walking. Six volunteers (four males and two females) stayed in a temperature-controlled classroom. Four room temperature conditions were examined: 15, 20, 25, and 28℃. Indirect calorimetry was used to measure CO₂ emission rates and additionally respiratory parameters such as ETCO₂and respiration rate. CO₂ emission rates increased significantly with the physical activity level increased, and it was lower when thermally neutral compared to thermally warm and cool. The room temperature effect on CO₂ emission rate depended on the physical activity levels.

Original language	English
Title of host publication	Proceedings of Indoor Air 2022
Publisher	International Society of Indoor Air Quality and Climate
Publication date	2022
Publication status	Published - 2022
Event	17^th International Conference of the International Society of Indoor Air Quality & Climate - University of Eastern Finland, Kuopio, Finland Duration: 12 Jun 2022 → 16 Jun 2022 Conference number: 17 https://indoorair2022.org/

Conference

Conference	17^th International Conference of the International Society of Indoor Air Quality & Climate
Number	17
Location	University of Eastern Finland
Country/Territory	Finland
City	Kuopio
Period	12/06/2022 → 16/06/2022
Internet address	https://indoorair2022.org/

Keywords

Carbon dioxide emission rate
Human bio-effluents
Indoor temperature
Physical activity

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title = "Impact of room temperature on human carbon dioxide emission rates at different physical activity levels",

abstract = "This study examined the impact of room temperature on carbon dioxide (CO2) emission rates from humans at three different physical activity levels: sitting, standing, and walking. Six volunteers (four males and two females) stayed in a temperature-controlled classroom. Four room temperature conditions were examined: 15, 20, 25, and 28℃. Indirect calorimetry was used to measure CO2 emission rates and additionally respiratory parameters such as ETCO2 and respiration rate. CO2 emission rates increased significantly with the physical activity level increased, and it was lower when thermally neutral compared to thermally warm and cool. The room temperature effect on CO2 emission rate depended on the physical activity levels.",

keywords = "Carbon dioxide emission rate, Human bio-effluents, Indoor temperature, Physical activity",

author = "Kazuki Kuga and Pawel Wargocki and Kazuhide Ito",

year = "2022",

language = "English",

booktitle = "Proceedings of Indoor Air 2022",

publisher = "International Society of Indoor Air Quality and Climate",

note = "17<sup>th</sup> International Conference of the International Society of Indoor Air Quality & Climate, Indoor Air 2022 ; Conference date: 12-06-2022 Through 16-06-2022",

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Impact of room temperature on human carbon dioxide emission rates at different physical activity levels. / Kuga, Kazuki; Wargocki, Pawel; Ito, Kazuhide.
Proceedings of Indoor Air 2022. International Society of Indoor Air Quality and Climate, 2022.

Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review

TY - ABST

T1 - Impact of room temperature on human carbon dioxide emission rates at different physical activity levels

AU - Kuga, Kazuki

AU - Wargocki, Pawel

AU - Ito, Kazuhide

N1 - Conference code: 17

PY - 2022

Y1 - 2022

N2 - This study examined the impact of room temperature on carbon dioxide (CO2) emission rates from humans at three different physical activity levels: sitting, standing, and walking. Six volunteers (four males and two females) stayed in a temperature-controlled classroom. Four room temperature conditions were examined: 15, 20, 25, and 28℃. Indirect calorimetry was used to measure CO2 emission rates and additionally respiratory parameters such as ETCO2 and respiration rate. CO2 emission rates increased significantly with the physical activity level increased, and it was lower when thermally neutral compared to thermally warm and cool. The room temperature effect on CO2 emission rate depended on the physical activity levels.

AB - This study examined the impact of room temperature on carbon dioxide (CO2) emission rates from humans at three different physical activity levels: sitting, standing, and walking. Six volunteers (four males and two females) stayed in a temperature-controlled classroom. Four room temperature conditions were examined: 15, 20, 25, and 28℃. Indirect calorimetry was used to measure CO2 emission rates and additionally respiratory parameters such as ETCO2 and respiration rate. CO2 emission rates increased significantly with the physical activity level increased, and it was lower when thermally neutral compared to thermally warm and cool. The room temperature effect on CO2 emission rate depended on the physical activity levels.

KW - Carbon dioxide emission rate

KW - Human bio-effluents

KW - Indoor temperature

KW - Physical activity

M3 - Conference abstract in proceedings

BT - Proceedings of Indoor Air 2022

PB - International Society of Indoor Air Quality and Climate

T2 - 17<sup>th</sup> International Conference of the International Society of Indoor Air Quality & Climate

Y2 - 12 June 2022 through 16 June 2022

ER -

Impact of room temperature on human carbon dioxide emission rates at different physical activity levels

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Conference

Keywords

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