Comparative acoustic analysis of standard and innovative air diffusers with enhanced mixing capabilities
This study addresses the challenge of designing a high-induction air diffuser with a complex geometry that effectively mixes and entrains more ambient air, raising concerns about potential noise increase. The research focuses on the acoustic performance of innovative 3D-printed air diffusers compare...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2025-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/08/e3sconf_eenviro2024_02002.pdf |
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| _version_ | 1832098377423126528 |
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| author | Joldos Titus Otniel Danca Paul Cernei Alexandru |
| author_facet | Joldos Titus Otniel Danca Paul Cernei Alexandru |
| author_sort | Joldos Titus Otniel |
| collection | DOAJ |
| description | This study addresses the challenge of designing a high-induction air diffuser with a complex geometry that effectively mixes and entrains more ambient air, raising concerns about potential noise increase. The research focuses on the acoustic performance of innovative 3D-printed air diffusers compared to the original air diffuser installed in the Dacia-Renault Duster vehicle. The four 3D-printed air diffusers, created using FDM (Fused Deposition Modelling), SLS (Selective Laser Sintering), DLP (Digital Light Processing), and SLA (Stereolithography), were tested to evaluate a single configuration due to concerns that the surface quality resulting from 3D printing could increase the noise produced by these diffusers. Using a professional sound level meter, acoustic measurements were conducted at the V2 (23.9 m3/h) and V3 (33.6 m3/h) flow rate settings. Results showed that the traditional air diffuser had the highest noise levels, measuring 38.2 dB at V2 and 39.6 dB at V3, which were 7.33% and 8.84% louder, respectively, than the innovative designs. Despite the DLP-printed diffuser being the quietest on V2 speed setting, the SLA-printed variant was preferred due to its superior dimensional tolerances and because the differences in noise were small. |
| format | Article |
| id | doaj-art-014169fa66fc4a229b3530603199a9fc |
| institution | Kabale University |
| issn | 2267-1242 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj-art-014169fa66fc4a229b3530603199a9fc2025-02-05T10:49:33ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016080200210.1051/e3sconf/202560802002e3sconf_eenviro2024_02002Comparative acoustic analysis of standard and innovative air diffusers with enhanced mixing capabilitiesJoldos Titus Otniel0Danca Paul1Cernei Alexandru2AtFlow Research Centre, Technical University of Cluj-NapocaNational Institute for R&D in Electric Engineering, ICPE-CAAdvanced Research Centre for Ambiental Quality and Building Physics, Technical University of Civil Engineering of BucharestThis study addresses the challenge of designing a high-induction air diffuser with a complex geometry that effectively mixes and entrains more ambient air, raising concerns about potential noise increase. The research focuses on the acoustic performance of innovative 3D-printed air diffusers compared to the original air diffuser installed in the Dacia-Renault Duster vehicle. The four 3D-printed air diffusers, created using FDM (Fused Deposition Modelling), SLS (Selective Laser Sintering), DLP (Digital Light Processing), and SLA (Stereolithography), were tested to evaluate a single configuration due to concerns that the surface quality resulting from 3D printing could increase the noise produced by these diffusers. Using a professional sound level meter, acoustic measurements were conducted at the V2 (23.9 m3/h) and V3 (33.6 m3/h) flow rate settings. Results showed that the traditional air diffuser had the highest noise levels, measuring 38.2 dB at V2 and 39.6 dB at V3, which were 7.33% and 8.84% louder, respectively, than the innovative designs. Despite the DLP-printed diffuser being the quietest on V2 speed setting, the SLA-printed variant was preferred due to its superior dimensional tolerances and because the differences in noise were small.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/08/e3sconf_eenviro2024_02002.pdf |
| spellingShingle | Joldos Titus Otniel Danca Paul Cernei Alexandru Comparative acoustic analysis of standard and innovative air diffusers with enhanced mixing capabilities E3S Web of Conferences |
| title | Comparative acoustic analysis of standard and innovative air diffusers with enhanced mixing capabilities |
| title_full | Comparative acoustic analysis of standard and innovative air diffusers with enhanced mixing capabilities |
| title_fullStr | Comparative acoustic analysis of standard and innovative air diffusers with enhanced mixing capabilities |
| title_full_unstemmed | Comparative acoustic analysis of standard and innovative air diffusers with enhanced mixing capabilities |
| title_short | Comparative acoustic analysis of standard and innovative air diffusers with enhanced mixing capabilities |
| title_sort | comparative acoustic analysis of standard and innovative air diffusers with enhanced mixing capabilities |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/08/e3sconf_eenviro2024_02002.pdf |
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