Publication detail

Insulation panels for active control of heat transfer in walls operated as space heating or as a thermal barrier: Numerical simulations and experiments

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"
}