A Simplified Method for Stationary Heat Transfer of a Hollow Core Concrete Slab Used for TABS

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Resumé

Thermally activated building systems (TABS) have been an energy efficient way to improve the indoor thermal comfort. Due to the complicated structure, heat transfer prediction for a hollow core concrete used for TABS is difficult. This paper proposes a simplified method using equivalent thermal resistance for the stationary heat transfer of this kind of system. Numerical simulations are carried out to validate this method, and this method shows very small deviations from the numerical simulations. Meanwhile, this method is used to investigate the influence of the thickness of insulation on the heat transfer. The insulation with a thickness of more than 0.06 m can keep over 95 % of the heat transferred from the lower surface, which is beneficial to the radiant ceiling cooling. Finally, this method is extended to involve the effect of the pipe, and the numerical comparison results show that this method can accurately predict the effect of the pipe.
OriginalsprogEngelsk
TitelProceedings of the 2nd Asia Conference of International Building Performance Simulation Association
Antal sider8
Udgivelses stedNagoya, Japan
ForlagInternational Building Performance Simulation Association - Japan (IBPSA -Japan)
Publikationsdato2014
StatusUdgivet - 2014
BegivenhedThe 2nd Asia Conference of International Building Performance Simulation Association - Higashiyama Campus, Nagoya University, Nagoya, Japan
Varighed: 28 nov. 201429 nov. 2014
Konferencens nummer: 2

Konference

KonferenceThe 2nd Asia Conference of International Building Performance Simulation Association
Nummer2
LokationHigashiyama Campus, Nagoya University
LandJapan
ByNagoya
Periode28/11/201429/11/2014

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Concrete slabs
Heat transfer
Insulation
Pipe
Thermal comfort
Ceilings
Computer simulation
Heat resistance
Concretes
Cooling

Bibliografisk note

The proceedings is published as a printed book, usb and online.

Citer dette

Yu, T., Heiselberg, P. K., Lei, B., & Pomianowski, M. Z. (2014). A Simplified Method for Stationary Heat Transfer of a Hollow Core Concrete Slab Used for TABS. I Proceedings of the 2nd Asia Conference of International Building Performance Simulation Association Nagoya, Japan: International Building Performance Simulation Association - Japan (IBPSA -Japan).
Yu, Tao ; Heiselberg, Per Kvols ; Lei, Bo ; Pomianowski, Michal Zbigniew. / A Simplified Method for Stationary Heat Transfer of a Hollow Core Concrete Slab Used for TABS. Proceedings of the 2nd Asia Conference of International Building Performance Simulation Association. Nagoya, Japan : International Building Performance Simulation Association - Japan (IBPSA -Japan), 2014.
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title = "A Simplified Method for Stationary Heat Transfer of a Hollow Core Concrete Slab Used for TABS",
abstract = "Thermally activated building systems (TABS) have been an energy efficient way to improve the indoor thermal comfort. Due to the complicated structure, heat transfer prediction for a hollow core concrete used for TABS is difficult. This paper proposes a simplified method using equivalent thermal resistance for the stationary heat transfer of this kind of system. Numerical simulations are carried out to validate this method, and this method shows very small deviations from the numerical simulations. Meanwhile, this method is used to investigate the influence of the thickness of insulation on the heat transfer. The insulation with a thickness of more than 0.06 m can keep over 95 {\%} of the heat transferred from the lower surface, which is beneficial to the radiant ceiling cooling. Finally, this method is extended to involve the effect of the pipe, and the numerical comparison results show that this method can accurately predict the effect of the pipe.",
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Yu, T, Heiselberg, PK, Lei, B & Pomianowski, MZ 2014, A Simplified Method for Stationary Heat Transfer of a Hollow Core Concrete Slab Used for TABS. i Proceedings of the 2nd Asia Conference of International Building Performance Simulation Association. International Building Performance Simulation Association - Japan (IBPSA -Japan), Nagoya, Japan, The 2nd Asia Conference of International Building Performance Simulation Association, Nagoya, Japan, 28/11/2014.

A Simplified Method for Stationary Heat Transfer of a Hollow Core Concrete Slab Used for TABS. / Yu, Tao; Heiselberg, Per Kvols; Lei, Bo; Pomianowski, Michal Zbigniew.

Proceedings of the 2nd Asia Conference of International Building Performance Simulation Association. Nagoya, Japan : International Building Performance Simulation Association - Japan (IBPSA -Japan), 2014.

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

TY - GEN

T1 - A Simplified Method for Stationary Heat Transfer of a Hollow Core Concrete Slab Used for TABS

AU - Yu, Tao

AU - Heiselberg, Per Kvols

AU - Lei, Bo

AU - Pomianowski, Michal Zbigniew

N1 - The proceedings is published as a printed book, usb and online.

PY - 2014

Y1 - 2014

N2 - Thermally activated building systems (TABS) have been an energy efficient way to improve the indoor thermal comfort. Due to the complicated structure, heat transfer prediction for a hollow core concrete used for TABS is difficult. This paper proposes a simplified method using equivalent thermal resistance for the stationary heat transfer of this kind of system. Numerical simulations are carried out to validate this method, and this method shows very small deviations from the numerical simulations. Meanwhile, this method is used to investigate the influence of the thickness of insulation on the heat transfer. The insulation with a thickness of more than 0.06 m can keep over 95 % of the heat transferred from the lower surface, which is beneficial to the radiant ceiling cooling. Finally, this method is extended to involve the effect of the pipe, and the numerical comparison results show that this method can accurately predict the effect of the pipe.

AB - Thermally activated building systems (TABS) have been an energy efficient way to improve the indoor thermal comfort. Due to the complicated structure, heat transfer prediction for a hollow core concrete used for TABS is difficult. This paper proposes a simplified method using equivalent thermal resistance for the stationary heat transfer of this kind of system. Numerical simulations are carried out to validate this method, and this method shows very small deviations from the numerical simulations. Meanwhile, this method is used to investigate the influence of the thickness of insulation on the heat transfer. The insulation with a thickness of more than 0.06 m can keep over 95 % of the heat transferred from the lower surface, which is beneficial to the radiant ceiling cooling. Finally, this method is extended to involve the effect of the pipe, and the numerical comparison results show that this method can accurately predict the effect of the pipe.

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M3 - Article in proceeding

BT - Proceedings of the 2nd Asia Conference of International Building Performance Simulation Association

PB - International Building Performance Simulation Association - Japan (IBPSA -Japan)

CY - Nagoya, Japan

ER -

Yu T, Heiselberg PK, Lei B, Pomianowski MZ. A Simplified Method for Stationary Heat Transfer of a Hollow Core Concrete Slab Used for TABS. I Proceedings of the 2nd Asia Conference of International Building Performance Simulation Association. Nagoya, Japan: International Building Performance Simulation Association - Japan (IBPSA -Japan). 2014