Concept study of sustainable noise control solution for HVAC systems based on microperforated elements
Recently fibreless solutions have become a trend in the design of sustainable and environmentally friendly duct silencers. In this respect microperforated panels have been proved to provide adequate performance for the substitution of unfavourable fibrous material layers commonly used in mass-produc...
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Estonian Academy Publishers
2021
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oai:doaj.org-article:aa609109e3df42b29f9deaa79a5dd30a2021-11-17T17:48:21ZConcept study of sustainable noise control solution for HVAC systems based on microperforated elements1736-60461736-753010.3176/proc.2021.4.13https://doaj.org/article/aa609109e3df42b29f9deaa79a5dd30a2021-11-01T00:00:00Zhttps://kirj.ee/wp-content/plugins/kirj/pub/proc-4-2021-461-469_20211106233837.pdfhttps://doaj.org/toc/1736-6046https://doaj.org/toc/1736-7530Recently fibreless solutions have become a trend in the design of sustainable and environmentally friendly duct silencers. In this respect microperforated panels have been proved to provide adequate performance for the substitution of unfavourable fibrous material layers commonly used in mass-produced silencers. This paper presents an acoustic study of microperforated elements aimed for effective and eco-friendly noise control solutions. Several microperforated sheet metal panels have been experimentally tested in a variety of layered configurations to maximize the sound absorption coefficient in the expected operational frequency range. The optimal solutions have been implemented in the design of novel fibreless solutions, presented in this research, and compared with typical fibrous material filled units commercially available. The results of the study demonstrate the appropriateness of the double-layered microperforates for a duct silencer application as well as for a variety of NVH (noise, vibration, and harshness) impleÂ- mentations where potent noise absorption is aimed for.Jüri LavrentjevHans RämmalMargus VillauEstonian Academy Publishersarticlemicroperforated elementnoise controlfibrelesstransmission lossinsertion lossabsorption coefficienthvac (heatingventilationand air conditioning).ScienceQENProceedings of the Estonian Academy of Sciences, Vol 70, Iss 4, Pp 461-469 (2021) |
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DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
microperforated element noise control fibreless transmission loss insertion loss absorption coefficient hvac (heating ventilation and air conditioning). Science Q |
| spellingShingle |
microperforated element noise control fibreless transmission loss insertion loss absorption coefficient hvac (heating ventilation and air conditioning). Science Q Jüri Lavrentjev Hans Rämmal Margus Villau Concept study of sustainable noise control solution for HVAC systems based on microperforated elements |
| description |
Recently fibreless solutions have become a trend in the design of sustainable and environmentally friendly duct silencers. In this respect microperforated panels have been proved to provide adequate performance for the substitution of unfavourable fibrous material layers commonly used in mass-produced silencers. This paper presents an acoustic study of microperforated elements aimed for effective and eco-friendly noise control solutions. Several microperforated sheet metal panels have been experimentally tested in a variety of layered configurations to maximize the sound absorption coefficient in the expected operational frequency range. The optimal solutions have been implemented in the design of novel fibreless solutions, presented in this research, and compared with typical fibrous material filled units commercially available. The results of the study demonstrate the appropriateness of the double-layered microperforates for a duct silencer application as well as for a variety of NVH (noise, vibration, and harshness) impleÂ- mentations where potent noise absorption is aimed for. |
| format |
article |
| author |
Jüri Lavrentjev Hans Rämmal Margus Villau |
| author_facet |
Jüri Lavrentjev Hans Rämmal Margus Villau |
| author_sort |
Jüri Lavrentjev |
| title |
Concept study of sustainable noise control solution for HVAC systems based on microperforated elements |
| title_short |
Concept study of sustainable noise control solution for HVAC systems based on microperforated elements |
| title_full |
Concept study of sustainable noise control solution for HVAC systems based on microperforated elements |
| title_fullStr |
Concept study of sustainable noise control solution for HVAC systems based on microperforated elements |
| title_full_unstemmed |
Concept study of sustainable noise control solution for HVAC systems based on microperforated elements |
| title_sort |
concept study of sustainable noise control solution for hvac systems based on microperforated elements |
| publisher |
Estonian Academy Publishers |
| publishDate |
2021 |
| url |
https://doaj.org/article/aa609109e3df42b29f9deaa79a5dd30a |
| work_keys_str_mv |
AT jurilavrentjev conceptstudyofsustainablenoisecontrolsolutionforhvacsystemsbasedonmicroperforatedelements AT hansrammal conceptstudyofsustainablenoisecontrolsolutionforhvacsystemsbasedonmicroperforatedelements AT margusvillau conceptstudyofsustainablenoisecontrolsolutionforhvacsystemsbasedonmicroperforatedelements |
| _version_ |
1718425373231808512 |