Abstract
Investigations on heated ceiling method can be considered as a new research area in comparison to the common wall heating-cooling and cooled ceiling methods. In this work, heat transfer characteristics of a heated radiant ceiling system was investigated experimentally. There were different configurations for a single room design in order to determine the convective and radiative heat transfer rates. Almost all details on the arrangement of the test chamber, hydraulic circuit and radiant panels, the measurement equipment and experimental method including uncertainty analysis were revealed in detail indicating specific international standards. Total heat transfer amount from the panels were calculated as the sum of radiation to the unheated surfaces, convection to the air, and conduction heat loss from the backside of the panels. Integral expression of the view factors was calculated by means of the numerical evaluations using Matlab code. By means of this experimental chamber, the radiative, convective and total heat-transfer coefficient values along with the heat flux values provided from the ceiling to the unheated surrounding surfaces have been calculated. Moreover, the details of 28 different experimental case study measurements from the experimental chamber including the convective, radiative and total heat flux, and heat output results are given in a Table for other researchers to validate their theoretical models and empirical correlations.
Original language | English |
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Pages (from-to) | 363-375 |
Number of pages | 13 |
Journal | Heat and Mass Transfer |
Volume | 54 |
Issue number | 2 |
DOIs | |
Publication status | Published - 1 Feb 2018 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2017, Springer-Verlag GmbH Germany.
Funding
Acknowledgements This study has been financially supported by Yildiz Technical University Scientific Research Projects Coordination Department, Project Number: 2015-06-01-KAP02. The fifth author acknowledges the support provided by the BResearch Chair Grant^ National Science and Technology Development Agency, The Thailand Research Fund, the National Research University Project and King Mongkut’s University of Technology Thonburi through the BKMUTT 55th Anniversary Commemorative Fund^.
Funders | Funder number |
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Department of Scientific and Industrial Research, Ministry of Science and Technology | 2015-06-01-KAP02 |
National Science and Technology Development Agency | |
Thailand Research Fund | |
King Mongkut's University of Technology Thonburi | |
Belgorod National Research University |
Keywords
- Experimental chamber
- Heat transfer
- Hydronic radiant ceiling system
- Radiant heating
- Radiant systems