Impact of Perforated Ceiling Radiant Cooling Panel Design Factors on Room Acoustic Performance

Wan-Ki Moon; Geon-Hee Kim; Jae-Yun Jeon; Joo-Young Hong

doi:10.21086/ksles.2025.2.32.1.034

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2025 Vol.32, Issue 1 Preview Page Next Page

Research Article

Impact of Perforated Ceiling Radiant Cooling Panel Design Factors on Room Acoustic Performance 타공형 천장 복사 냉방 패널 설계요소에 따른 실내 음향성능 영향

28 February 2025. pp. 34-44

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Abstract

In this study, heat transfer and acoustic performance of perforated ceiling radiant cooling panels were analyzed by varying in porosity rate, porosity diameter, and panel thickness, and the sound absorption coefficient, reverberation time (T30), intelligibility (C50 and D50), and speech privacy indicators (r_D, r_P) based on acoustic simulation. The results showed that higher porosity, smaller pore diameter, and thinner panel thickness decreased the reverberation time (T30: 0.77 s) and improved clarity (C50: 5.2 dB and D50: 0.72%). In particular, the combination of 15% porosity, 0.5 mm diameter, and 15 mm thickness showed the best performance, effectively improving the speech disturbance distance (r_D: 6.04 m) and speech privacy distance (r_P: 11.03 m). Increasing the perforation rate decreased the heat transfer performance but improved the acoustic performance, which is a compromise to optimize the acoustic environment while minimizing heat transfer losses. This study provides practical design guidelines for improving acoustic performance in the design of perforated ceiling radiant panels, and suggests the need for further research to validate the simulation results in real environments.

Keywords

Ceiling radiant cooling panel

Perforation

Reverberation time

Clarity, Speech privacy

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Information

Publisher :The Korean Society of Living Environmental System
Publisher(Ko) :한국생활환경학회
Journal Title :Journal of The Korean Society of Living Environmental System
Journal Title(Ko) :한국생활환경학회
Volume : 32
No :1
Pages :34-44
Received Date : 2025-01-29
Revised Date : 2025-02-08
Accepted Date : 2025-02-23
DOI :https://doi.org/10.21086/ksles.2025.2.32.1.034

Journal of The Korean Society of Living Environmental System ISSN:1226-1289(Print) 한국생활환경학회

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