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ŠIMKO, M. KRAJČÍK, M. ŠIKULA, O. ŠIMKO, P. KALÚS, D.
Original Title
Insulation panels for active control of heat transfer in walls operated as space heating or as a thermal barrier: Numerical simulations and experiments
Type
journal article in Web of Science
Language
English
Original Abstract
Numerical simulations and experiments were performed for a thermally active wall with pipes arranged in milled channels in the thermal insulation. The advantage of this system is its suitability for installation in both new and existing buildings in the form of precast heat insulation panels attached to their facades. The study shows that by active control of the supply water temperature, it is possible to alternate the walĺs function between space heating and a thermal barrier. The wall system has the potential to significantly reduce heat loss when used as a thermal barrier. When operated as space heating, embedding the pipes in thermal insulation reduced the heating capacity by 50% as compared to systems with pipes arranged in a concrete core and by 63% for pipes arranged in a layer underneath the surface. It is crucial that pipes arranged in channels are embedded in a thermally conductive material. Failing to do so can substantially diminish the heating capacity due to the imperfect contact between the pipes and radiant surface and also due to the air gap that may form around the pipes. The thickness of the thermal insulation, spacing of the pipes, and supply water temperature also have a substantial effect on the heating capacity, whereas the thickness of the concrete core does not.
Keywords
Radiant heating system, Wall heating, Thermally activated building systems (TABS), Thermal barrier, Thermal insulation, Heat flux
Authors
ŠIMKO, M.; KRAJČÍK, M.; ŠIKULA, O.; ŠIMKO, P.; KALÚS, D.
Released
1. 1. 2018
Publisher
Elsevier
Location
Netherlands
ISBN
0378-7788
Periodical
ENERGY AND BUILDINGS
Year of study
158
Number
Supplement C
State
Swiss Confederation
Pages from
135
Pages to
146
Pages count
12
URL
http://www.sciencedirect.com/science/article/pii/S0378778817321953
Full text in the Digital Library
http://hdl.handle.net/11012/208781
BibTex
@article{BUT140369, author="Martin {Šimko} and Michal {Krajčík} and Ondřej {Šikula} and šimko {peter} and Daniel {Kalús}", title="Insulation panels for active control of heat transfer in walls operated as space heating or as a thermal barrier: Numerical simulations and experiments", journal="ENERGY AND BUILDINGS", year="2018", volume="158", number="Supplement C", pages="135--146", doi="10.1016/j.enbuild.2017.10.019", issn="0378-7788", url="http://www.sciencedirect.com/science/article/pii/S0378778817321953" }