The effect of noise exposure on sleep quality of urban residents: A comparative study in Shanghai, China

Xu, Xinbo; Lan, Li; Sun, Yuxiang; Lian, Zhiwei

doi:10.1007/s12273-022-0972-2

Cited by 6 publications

(3 citation statements)

References 45 publications

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“…where n = 8 indicates the number of air outlet pipes; Q i is the air volume of the air outlet pipe numbered i(i = 1,…,8); and Q is the average air volume of all air outlet pipes. Equation (1) indicates that when the ADUC value is closer to 1, the uniform flow distribution performance of the AD is better.…”

Section: Performance Evaluation Indices Of the Admentioning

confidence: 99%

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Improvement of airflow uniformity and noise reduction with optimized V-shape configuration of perforated plate in the air distributor

Liu,

Sun,

Cui

et al. 2023

Indoor and Built Environment

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The air distributor is the end component of the ventilation system, and its performance directly determines the comfortable and pleasant feeling of the residence. A perforated plate can be added to the air distributor to convert dynamic pressure into static pressure first and then distribute the air flow, which provides better self-adjustment compared with the embedded guide vane structure. However, the perforated plate can lead to a contradiction between head loss, noise and distribution uniformity. To reconcile this problem, a novel V-shape configuration of the perforated plate was put forward in this study. The internal flow and aeroacoustic properties of different types of perforated plates were systematically studied, and a full-scale test platform was built to verify the flow characteristics. The effects of hole size and installation position of the perforated plate on the uniform distribution of air flow were analyzed by the parametric analysis method. Then, the sound pressure level of the optimized perforated plate air distributor was further analyzed. The results show that, with the optimized perforated plate structure, the uniform flow performance was improved by about 30% and the overall sound pressure level was reduced by up to 12 dB.

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Section: Performance Evaluation Indices Of the Admentioning

confidence: 99%

“…In addition, indoor noise levels have a significant impact on the sleep quality of urban residents. 1 Therefore, the low noise environment created could improve the sense of pleasure 2,3 and would be the basic working condition for the on-demand regulation of fresh air.…”

Section: Introductionmentioning

confidence: 99%

Improvement of airflow uniformity and noise reduction with optimized V-shape configuration of perforated plate in the air distributor

Liu,

Sun,

Cui

et al. 2023

Indoor and Built Environment

View full text Add to dashboard Cite

show abstract

“…The general population has perceived that noise has a serious effect on our daily life. [2,3] Noise problems not only can cause tinnitus [4] and hearing loss, [5] but also can produce many extra-auditory effects, [6] such as sleep disturbance, [7,8] psychological health problems, [9] cognitive impairment, [10,11] and metabolic disorders. [6,12] There is no doubt that exposure to high sound pressure for prolonged periods will result in the decline in the sense of contentment and happiness.…”

mentioning

confidence: 99%

Recent Advances in Preparation and Structure of Polyurethane Porous Materials for Sound Absorbing Application

Dong,

Duan,

Chen

et al. 2024

Macromol. Rapid Commun.

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Various acoustic materials have been developed to resolve noise pollution problem in many industries. Especially, materials with porous structure have been broadly used to absorb sound energy in civil construction and transportation area. Polyurethane (PU) porous materials possess excellent damping properties, good toughness and well‐developed pore structures, which have a broad application prospect in sound absorption field. This work aimed to summarize the recent progress of fabrication and structure for PU porous materials in sound absorption application. The sound absorption mechanisms of porous materials were introduced. Different kinds of structure for typical PU porous materials in sound absorption application were covered and highlighted, which included PU foam, modified PU porous materials, aerogel, templated PU and special PU porous materials. Finally, the development direction and existing problems of PU material in sound absorption application were briefly prospected. It can be expected that porous PU with high sound absorption coefficient can be obtained by using some facile methods. The design and accurate regulation of porous structures or construction of multilayer sound absorption structure will be favorably recommended to fulfill the high demand of industrial and commercial applications in the future work.This article is protected by copyright. All rights reserved

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Optimizing bedroom thermal environment: A review of human body temperature, sleeping thermal comfort and sleep quality

Lian

2024

Energy and Built Environment

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The effect of noise exposure on sleep quality of urban residents: A comparative study in Shanghai, China

Cited by 6 publications

References 45 publications

Improvement of airflow uniformity and noise reduction with optimized V-shape configuration of perforated plate in the air distributor

Improvement of airflow uniformity and noise reduction with optimized V-shape configuration of perforated plate in the air distributor

Recent Advances in Preparation and Structure of Polyurethane Porous Materials for Sound Absorbing Application

Optimizing bedroom thermal environment: A review of human body temperature, sleeping thermal comfort and sleep quality

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