A New Hybrid Cfd Approach To Study the Impact of Forced Convection on Radiant Cooled Wall With Baseboard Diffuser Including Various Vane Angles
dc.authorscopusid | 59567417000 | |
dc.authorscopusid | 58096915400 | |
dc.authorscopusid | 57207246960 | |
dc.authorscopusid | 56800992900 | |
dc.authorscopusid | 55682489100 | |
dc.authorscopusid | 24479329000 | |
dc.contributor.author | Caliskan Temiz, M. | |
dc.contributor.author | Bacak, A. | |
dc.contributor.author | Camci, M. | |
dc.contributor.author | Karakoyun, Y. | |
dc.contributor.author | Acikgoz, O. | |
dc.contributor.author | Dalkilic, A.S. | |
dc.date.accessioned | 2025-05-10T16:56:04Z | |
dc.date.available | 2025-05-10T16:56:04Z | |
dc.date.issued | 2025 | |
dc.department | T.C. Van Yüzüncü Yıl Üniversitesi | en_US |
dc.department-temp | Caliskan Temiz M., Department of Mechanical Engineering, Mechanical Engineering Faculty, Yildiz Technical University (YTU), Istanbul, 34349, Turkey; Bacak A., ASELSAN A.S, Gölbaşı Yerleşkesi, Gölbaşı, Ankara, 06830, Turkey; Camci M., Department of Mechanical Engineering, Engineering Faculty, Siirt University, Siirt, 56100, Turkey, Department of Mechanical Engineering, Engineering Faculty, King Mongkut's University of Technology Thonburi (KMUTT), Bangkok, 10140, Thailand; Karakoyun Y., Department of Mechanical Engineering, Engineering Faculty, Van Yuzuncu Yil University (YYU), Van, 65080, Turkey; Acikgoz O., Department of Mechanical Engineering, Mechanical Engineering Faculty, Yildiz Technical University (YTU), Istanbul, 34349, Turkey; Dalkilic A.S., Department of Mechanical Engineering, Mechanical Engineering Faculty, Yildiz Technical University (YTU), Istanbul, 34349, Turkey | en_US |
dc.description.abstract | The current work examines the effect of forced convection on thermal comfort in a space, including radiant wall cooling and an innovative floor-level diffuser system. It examines the impact of various vane angles on thermal comfort in room air conditioning at 15°, 30°, 45°, 60°, and 75°, and employs experimental data to confirm a hybrid 3D computational fluid dynamics (CFD) model. A new floor-level diffuser system delivers air at temperatures between 18 °C and 22 °C, with supply air velocities of 5 m/s and 10 m/s measured at the exit side of diffuser while the supply water temperature is kept constant at 14 °C. In the hybrid 3D solution, experimentally derived convective heat transfer coefficients (CHTCs) for forced airflow are utilized. This is accomplished by merging a k-ω model with a hydronic radiant panel system that incorporates forced convection. The analysis examines temperature and velocity distributions, CHTCs on the radiant-cooled wall, and the PMV-PPD components. Results indicate that at a supply air velocity of 5 m/s, thermal comfort parameters do not satisfy PMV and PPD indices, except in proximity to the diffuser. Nevertheless, elevating the supply air velocity to 10 m/s ensures thermal comfort across the space, with the exception of regions next to the cooled wall surfaces. The examination of several vane angles indicated that a 45° angle yields the most advantageous thermal comfort conditions, irrespective of air velocity. The CHTC adjacent to the radiant wall is roughly 6 W/m2K at a velocity of 5 m/s and rises to 8 W/m2K at 10 m/s. The temperature disparity between the head and ankle regions at 5 m/s adheres to the 3 °C tolerance established by international standards. The study determines that a 45° vane angle ensures best thermal comfort, and the devised numerical method yields significant insights for the construction of analogous indoor settings. © 2025 Elsevier Masson SAS | en_US |
dc.description.sponsorship | Yildiz Teknik Üniversitesi; Yancheng Teachers University, YTU, (FCD-2022-5092); Yancheng Teachers University, YTU | en_US |
dc.identifier.doi | 10.1016/j.ijthermalsci.2025.109804 | |
dc.identifier.issn | 1290-0729 | |
dc.identifier.scopus | 2-s2.0-85218412267 | |
dc.identifier.scopusquality | Q1 | |
dc.identifier.uri | https://doi.org/10.1016/j.ijthermalsci.2025.109804 | |
dc.identifier.uri | https://hdl.handle.net/20.500.14720/3539 | |
dc.identifier.volume | 213 | en_US |
dc.identifier.wosquality | Q1 | |
dc.language.iso | en | en_US |
dc.publisher | Elsevier Masson s.r.l. | en_US |
dc.relation.ispartof | International Journal of Thermal Sciences | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | Baseboard Diffuser | en_US |
dc.subject | Cfd | en_US |
dc.subject | Forced Convection | en_US |
dc.subject | Radiant Cooling | en_US |
dc.subject | Thermal Comfort | en_US |
dc.title | A New Hybrid Cfd Approach To Study the Impact of Forced Convection on Radiant Cooled Wall With Baseboard Diffuser Including Various Vane Angles | en_US |
dc.type | Article | en_US |