Characteristics of air-conditioning heat load of a large space building under constant PMV condition -comparison of occupied zone air-conditioning system and spot air-conditioning system

Noboru Sakuragi; Yasuyuki Shiraishi; Shin Ichi Tanabe; Ken Ichi Kimura

Characteristics of air-conditioning heat load of a large space building under constant PMV condition -comparison of occupied zone air-conditioning system and spot air-conditioning system

Noboru Sakuragi^*, Yasuyuki Shiraishi, Shin Ichi Tanabe, Ken Ichi Kimura

^*Corresponding author for this work

School of Creative Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We evaluated the air-conditioning heat load of spot air-conditioning system in a large space building like a factory by a coupled simulation of convention, radiation, moisture transportation and air-conditioning system control under constant PMV condition. The energy saving performance of this system was evaluated in comparison with the results of occupied zone air-conditioning system. The following results were obtained: 1) Indoor surface temperature was higher and thermal transmission load was lower in spot air-conditioning. 2) PMV values at eight evaluation points were almost the same in spot air-conditioning. 3) Sensible heat load decreased one third by making the set value of PMV lower from 2.0 to 0.5 in occupied zone air-conditioning, and one fourth in spot airconditioning. 4) Sensible heat load decreased two third by making the air temperature at supply opening lower from 20oC to 12oC in occupied zone air-conditioning, and three fifth in spot airconditioning.

Original language	English
Title of host publication	22nd International Conference, PLEA 2005
Subtitle of host publication	Passive and Low Energy Architecture - Environmental Sustainability: The Challenge of Awareness in Developing Societies, Proceedings
Pages	803-808
Number of pages	6
Publication status	Published - 2005 Dec 1
Event	22nd International Conference on Passive and Low Energy Architecture, PLEA 2005 - Beirut, Lebanon Duration: 2005 Nov 13 → 2005 Nov 16

Publication series

Name	22nd International Conference, PLEA 2005: Passive and Low Energy Architecture - Environmental Sustainability: The Challenge of Awareness in Developing Societies, Proceedings
Volume	2

Conference

Conference	22nd International Conference on Passive and Low Energy Architecture, PLEA 2005
Country/Territory	Lebanon
City	Beirut
Period	05/11/13 → 05/11/16

Keywords

Air-conditioning heat load
CFD
Coupled simulation
Large space building

ASJC Scopus subject areas

Energy Engineering and Power Technology
Renewable Energy, Sustainability and the Environment

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

Sakuragi, N., Shiraishi, Y., Tanabe, S. I., & Kimura, K. I. (2005). Characteristics of air-conditioning heat load of a large space building under constant PMV condition -comparison of occupied zone air-conditioning system and spot air-conditioning system. In 22nd International Conference, PLEA 2005: Passive and Low Energy Architecture - Environmental Sustainability: The Challenge of Awareness in Developing Societies, Proceedings (pp. 803-808). (22nd International Conference, PLEA 2005: Passive and Low Energy Architecture - Environmental Sustainability: The Challenge of Awareness in Developing Societies, Proceedings; Vol. 2).

Characteristics of air-conditioning heat load of a large space building under constant PMV condition -comparison of occupied zone air-conditioning system and spot air-conditioning system. / Sakuragi, Noboru; Shiraishi, Yasuyuki; Tanabe, Shin Ichi et al.
22nd International Conference, PLEA 2005: Passive and Low Energy Architecture - Environmental Sustainability: The Challenge of Awareness in Developing Societies, Proceedings. 2005. p. 803-808 (22nd International Conference, PLEA 2005: Passive and Low Energy Architecture - Environmental Sustainability: The Challenge of Awareness in Developing Societies, Proceedings; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Sakuragi, N, Shiraishi, Y, Tanabe, SI & Kimura, KI 2005, Characteristics of air-conditioning heat load of a large space building under constant PMV condition -comparison of occupied zone air-conditioning system and spot air-conditioning system. in 22nd International Conference, PLEA 2005: Passive and Low Energy Architecture - Environmental Sustainability: The Challenge of Awareness in Developing Societies, Proceedings. 22nd International Conference, PLEA 2005: Passive and Low Energy Architecture - Environmental Sustainability: The Challenge of Awareness in Developing Societies, Proceedings, vol. 2, pp. 803-808, 22nd International Conference on Passive and Low Energy Architecture, PLEA 2005, Beirut, Lebanon, 05/11/13.

Sakuragi N, Shiraishi Y, Tanabe SI, Kimura KI. Characteristics of air-conditioning heat load of a large space building under constant PMV condition -comparison of occupied zone air-conditioning system and spot air-conditioning system. In 22nd International Conference, PLEA 2005: Passive and Low Energy Architecture - Environmental Sustainability: The Challenge of Awareness in Developing Societies, Proceedings. 2005. p. 803-808. (22nd International Conference, PLEA 2005: Passive and Low Energy Architecture - Environmental Sustainability: The Challenge of Awareness in Developing Societies, Proceedings).

Sakuragi, Noboru ; Shiraishi, Yasuyuki ; Tanabe, Shin Ichi et al. / Characteristics of air-conditioning heat load of a large space building under constant PMV condition -comparison of occupied zone air-conditioning system and spot air-conditioning system. 22nd International Conference, PLEA 2005: Passive and Low Energy Architecture - Environmental Sustainability: The Challenge of Awareness in Developing Societies, Proceedings. 2005. pp. 803-808 (22nd International Conference, PLEA 2005: Passive and Low Energy Architecture - Environmental Sustainability: The Challenge of Awareness in Developing Societies, Proceedings).

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abstract = "We evaluated the air-conditioning heat load of spot air-conditioning system in a large space building like a factory by a coupled simulation of convention, radiation, moisture transportation and air-conditioning system control under constant PMV condition. The energy saving performance of this system was evaluated in comparison with the results of occupied zone air-conditioning system. The following results were obtained: 1) Indoor surface temperature was higher and thermal transmission load was lower in spot air-conditioning. 2) PMV values at eight evaluation points were almost the same in spot air-conditioning. 3) Sensible heat load decreased one third by making the set value of PMV lower from 2.0 to 0.5 in occupied zone air-conditioning, and one fourth in spot airconditioning. 4) Sensible heat load decreased two third by making the air temperature at supply opening lower from 20oC to 12oC in occupied zone air-conditioning, and three fifth in spot airconditioning.",

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AU - Sakuragi, Noboru

AU - Shiraishi, Yasuyuki

AU - Tanabe, Shin Ichi

AU - Kimura, Ken Ichi

PY - 2005/12/1

Y1 - 2005/12/1

N2 - We evaluated the air-conditioning heat load of spot air-conditioning system in a large space building like a factory by a coupled simulation of convention, radiation, moisture transportation and air-conditioning system control under constant PMV condition. The energy saving performance of this system was evaluated in comparison with the results of occupied zone air-conditioning system. The following results were obtained: 1) Indoor surface temperature was higher and thermal transmission load was lower in spot air-conditioning. 2) PMV values at eight evaluation points were almost the same in spot air-conditioning. 3) Sensible heat load decreased one third by making the set value of PMV lower from 2.0 to 0.5 in occupied zone air-conditioning, and one fourth in spot airconditioning. 4) Sensible heat load decreased two third by making the air temperature at supply opening lower from 20oC to 12oC in occupied zone air-conditioning, and three fifth in spot airconditioning.

AB - We evaluated the air-conditioning heat load of spot air-conditioning system in a large space building like a factory by a coupled simulation of convention, radiation, moisture transportation and air-conditioning system control under constant PMV condition. The energy saving performance of this system was evaluated in comparison with the results of occupied zone air-conditioning system. The following results were obtained: 1) Indoor surface temperature was higher and thermal transmission load was lower in spot air-conditioning. 2) PMV values at eight evaluation points were almost the same in spot air-conditioning. 3) Sensible heat load decreased one third by making the set value of PMV lower from 2.0 to 0.5 in occupied zone air-conditioning, and one fourth in spot airconditioning. 4) Sensible heat load decreased two third by making the air temperature at supply opening lower from 20oC to 12oC in occupied zone air-conditioning, and three fifth in spot airconditioning.

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KW - CFD

KW - Coupled simulation

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Characteristics of air-conditioning heat load of a large space building under constant PMV condition -comparison of occupied zone air-conditioning system and spot air-conditioning system

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

UN SDGs

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