Analysis of the thermal performance of Thermally Activated Ceiling Slits

Ken Ikai; Jun Shinoda; Kan Shindo; Takeshi Takenaka; Shuichi Tamura; Tetsuo Kobori; Shin-Ichi Tanabe

Analysis of the thermal performance of Thermally Activated Ceiling Slits

Ken Ikai^*, Jun Shinoda, Kan Shindo, Takeshi Takenaka, Shuichi Tamura, Tetsuo Kobori, Shin-Ichi Tanabe

^*Corresponding author for this work

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

Abstract

This study aims to evaluate the novel “TABS ceiling slits”, designed to achieve daylight harvesting and solar heat removal, based on their cooling effect and the indoor thermal environment through heat balance simulations. The heat balance model was validated with field measurements conducted summer 2020, and two analyses were conducted. In the first analysis, the effects of supply water conditions on the heat extraction of the TABS ceiling slits and the operative temperatures of the office space were verified. In the second analysis, the comprehensive design conditions of the TABS ceiling slits were investigated through a parametric analysis with the embedded pipe location as an additional parameter. The results showed that the solar radiation removal performance and the indoor thermal environment could be sufficiently satisfied by the water supply conditions and the pipe locations in the actual design.

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

Daylight Use
Heat Balance Simulation
Radiant Cooling System
Thermal Comfort
Well Water Use

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title = "Analysis of the thermal performance of Thermally Activated Ceiling Slits",

abstract = "This study aims to evaluate the novel “TABS ceiling slits”, designed to achieve daylight harvesting and solar heat removal, based on their cooling effect and the indoor thermal environment through heat balance simulations. The heat balance model was validated with field measurements conducted summer 2020, and two analyses were conducted. In the first analysis, the effects of supply water conditions on the heat extraction of the TABS ceiling slits and the operative temperatures of the office space were verified. In the second analysis, the comprehensive design conditions of the TABS ceiling slits were investigated through a parametric analysis with the embedded pipe location as an additional parameter. The results showed that the solar radiation removal performance and the indoor thermal environment could be sufficiently satisfied by the water supply conditions and the pipe locations in the actual design.",

keywords = "Daylight Use, Heat Balance Simulation, Radiant Cooling System, Thermal Comfort, Well Water Use",

author = "Ken Ikai and Jun Shinoda and Kan Shindo and Takeshi Takenaka and Shuichi Tamura and Tetsuo Kobori and Shin-Ichi Tanabe",

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",

url = "https://indoorair2022.org/",

}

Ikai, K, Shinoda, J, Shindo, K, Takenaka, T, Tamura, S, Kobori, T & Tanabe, S-I 2022, Analysis of the thermal performance of Thermally Activated Ceiling Slits. in Proceedings of Indoor Air 2022. International Society of Indoor Air Quality and Climate, 17^th International Conference of the International Society of Indoor Air Quality & Climate, Kuopio, Finland, 12/06/2022.

TY - ABST

T1 - Analysis of the thermal performance of Thermally Activated Ceiling Slits

AU - Ikai, Ken

AU - Shinoda, Jun

AU - Shindo, Kan

AU - Takenaka, Takeshi

AU - Tamura, Shuichi

AU - Kobori, Tetsuo

AU - Tanabe, Shin-Ichi

N1 - Conference code: 17

PY - 2022

Y1 - 2022

N2 - This study aims to evaluate the novel “TABS ceiling slits”, designed to achieve daylight harvesting and solar heat removal, based on their cooling effect and the indoor thermal environment through heat balance simulations. The heat balance model was validated with field measurements conducted summer 2020, and two analyses were conducted. In the first analysis, the effects of supply water conditions on the heat extraction of the TABS ceiling slits and the operative temperatures of the office space were verified. In the second analysis, the comprehensive design conditions of the TABS ceiling slits were investigated through a parametric analysis with the embedded pipe location as an additional parameter. The results showed that the solar radiation removal performance and the indoor thermal environment could be sufficiently satisfied by the water supply conditions and the pipe locations in the actual design.

AB - This study aims to evaluate the novel “TABS ceiling slits”, designed to achieve daylight harvesting and solar heat removal, based on their cooling effect and the indoor thermal environment through heat balance simulations. The heat balance model was validated with field measurements conducted summer 2020, and two analyses were conducted. In the first analysis, the effects of supply water conditions on the heat extraction of the TABS ceiling slits and the operative temperatures of the office space were verified. In the second analysis, the comprehensive design conditions of the TABS ceiling slits were investigated through a parametric analysis with the embedded pipe location as an additional parameter. The results showed that the solar radiation removal performance and the indoor thermal environment could be sufficiently satisfied by the water supply conditions and the pipe locations in the actual design.

KW - Daylight Use

KW - Heat Balance Simulation

KW - Radiant Cooling System

KW - Thermal Comfort

KW - Well Water Use

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 -

Analysis of the thermal performance of Thermally Activated Ceiling Slits

Abstract

Conference

Keywords

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