An experimental investigation on the radiant cooled wall's heat transfer characteristics in a fully conditioned real-sized living environment

Aliihsan Koca, Yakup Karakoyun*, Ozgen Acikgoz, Mustafa Dogu, Ahmet Selim Dalkilic

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Radiant wall applications have been favored compared to floor and ceiling ones owing to their advantages. In the current work, the heat transfer characteristics of a radiant cooled wall, which are heat fluxes, and heat transfer coefficients, have been experimentally investigated by altering supplied water temperatures and using proper reference temperatures in a fully conditioned real-sized test chamber where the obstacles such as unrealistic room sizes and insufficient air conditioning processes have been eliminated. Detailed methodology for the determination of reference temperature, used thermocouples’ locations, and heat gains were revealed. As a result, investigated radiant cooled wall's average total, radiative, and convective heat transfer coefficients were determined as 7.83, 5.14, and 2.57 W/m2K, in turn. 67 % of the total heat transfer rate in the mean was found to belong to radiation. Furthermore, novel empirical correlations on the total, radiative, and convective heat transfer coefficients were derived with the mean squared errors of 99 %, 98 %, and 99 %, respectively. There is no experimental investigation on radiant wall cooling excluding authors’ previous publications. Finally, a detailed measured and calculated dataset, obtained from the third investigation on the radiant cooling wall system in open sources, was presented for the sake of other researchers.

Original languageEnglish
Article number112578
JournalEnergy and Buildings
Volume277
DOIs
Publication statusPublished - 15 Dec 2022

Bibliographical note

Publisher Copyright:
© 2022 Elsevier B.V.

Funding

This work was financially funded by the Scientific and Technological Research Council of Turkey (TUBITAK) via the TEYDEB-1507 (3100577) and ARDEB-3001 (213M199) projects, which were coordinated by Dr. Koca. The experiments were carried out at the Mir Arastirma and Gelistirme A.S. company facilities.

FundersFunder number
Türkiye Bilimsel ve Teknolojik Araştırma KurumuTEYDEB-1507, 3100577, ARDEB-3001, 213M199

    Keywords

    • Heat transfer coefficient
    • Radiant ceiling
    • Radiant cooling
    • Radiant floor
    • Radiant wall

    Fingerprint

    Dive into the research topics of 'An experimental investigation on the radiant cooled wall's heat transfer characteristics in a fully conditioned real-sized living environment'. Together they form a unique fingerprint.

    Cite this