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Articoli di riviste sul tema "Acoustic natural ventilation"

Autore: Grafiati

Pubblicato: 2 novembre 2024

Ultima modifica: 31 luglio 2025

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1

Fusaro, Gioia, Xiang Yu, Zhenbo Lu, Fangsen Cui, and Jian Kang. "A Metawindow with Optimised Acoustic and Ventilation Performance." Applied Sciences 11, no. 7 (2021): 3168. http://dx.doi.org/10.3390/app11073168.

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Crucial factors in window performance, such as natural ventilation and noise control, are generally conceived separately, forcing users to choose one over the other. To solve this dualism, this study aimed to develop an acoustic metamaterial (AMM) ergonomic window design to allow noise control without dependence on the natural ventilation duration and vice versa. First, the finite element method (FEM) was used to investigate the noise control performance of the acoustic metawindow (AMW) unit, followed by anechoic chamber testing, which also served as the validation of the FEM models. Furthermo

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2

Razavi, Zohreh, Max Richter, Murray Hodgson, and Alireza Khaleghi. "Acoustical Improvements with Natural Air Ventilation in the Liu Institute for Global Issues at the University of British Columbia." Journal of Green Building 6, no. 1 (2011): 114–22. http://dx.doi.org/10.3992/jgb.6.1.114.

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Low speech privacy in shared and private offices in one of the early generation of a “green” building resulted in occupants' dissatisfaction. This problem is experienced in Liu institute with a natural-ventilation system. Such a system requires low air-flow resistance which is achieved by large openings which will result in noise transmission between various spaces within the building. The poor acoustical quality in this building resulted in occupants' noise complaints which were further investigated by way of relevant acoustical measurements. CATT-Acoustic software was utilized to modify the

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3

Lee, Heow Pueh, and Sanjay Kumar. "Perspectives on the Sonic Environment and Noise Mitigations during the COVID-19 Pandemic Era." Acoustics 3, no. 3 (2021): 493–506. http://dx.doi.org/10.3390/acoustics3030033.

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The pandemic has impacted every facet of our life, society, and environment. It has also affected both the requirement and challenges for acoustic research and applications. The present article attempts to present a summary of the impact of COVID-19 on several aspects of acoustics, from the changes in the sonic environment due to reduced human and industrial activities to natural ventilation requirements for mitigating the transmission of coronavirus while mitigating noise, and, more importantly, discusses the potential impacts and challenges for acoustics in the post-COVID-19 era. The present

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4

Ávila Ferreira, Vinícius. "Soundproof Window - Natural Ventilation." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 3 (2021): 3294–304. http://dx.doi.org/10.3397/in-2021-2361.

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Expansion of brasilians cities worsen noise pollution in these places, forcing people to maintain their doors and windows closed. Domestic environment enclosing lead to necessity of air conditioning system, however the frequent use of the equipment may cause many health problems, such as respiratory difficulties and spread of diseases , not to mention high costs with energy. Considering these facts, there is the need of soundproofing windows with air supply , that allows passage of air without noise passage, guarantee a well-ventilated environment, with thermic and acoustic comfort without the

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5

Zekic, Suzana, Luis Gomez-Agustina, Haydar Aygun, and Issa Chaer. "Experimental acoustic testing of alternative ventilation ducts." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 265, no. 5 (2023): 2785–92. http://dx.doi.org/10.3397/in_2022_0390.

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Ducts of alternative materials to galvanised steel, are widely employed in residential buildings' mechanical ventilation systems in a bid to comply with the conservation of energy regulations in circumstances that prevent the use of natural ventilation. The noise transfer predictions of systems with alternative ducts are still being based on data for galvanised steel due to the lack of the acoustic performance data of alternative ventilation ducts tested in controlled conditions. To close this knowledge gap, alternative ventilation ducts and associated 90º bend samples were acoustically tested

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6

Ang, Linus Yinn Leng, and Fangsen Cui. "Recent progress in acoustic metamaterials with ventilation." Journal of the Acoustical Society of America 154, no. 4_supplement (2023): A85. http://dx.doi.org/10.1121/10.0022883.

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To develop sustainable cities, natural ventilation is being explored as one of the ways to reduce energy consumption and carbon dioxide emissions. Recently, acoustic metamaterials with ventilation have garnered attention for their potential to provide both ventilation and noise control. In addition, this class of acoustic metamaterials can be used as a machine enclosure for dissipating thermal load and reducing noise emission. This presentation focuses on the recent progress in acoustic metamaterials with ventilation over the last five years, highlighting three types: metamufflers, metapanels,

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7

Bielek, Boris, Daniel Szabó, and Vladimír Majsniar. "Development and Experimental Verification of Ventilation Units for Under Pressure Ventilation System." Advanced Materials Research 1041 (October 2014): 329–32. http://dx.doi.org/10.4028/www.scientific.net/amr.1041.329.

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Task of controlled ventilation in modern residential buildings is to ensure optimum quality of interior environment and fulfill hygienic and thermal technical requirements guaranteeing comfort of user. The paper discusses development and experimental verification of atypical vertical ventilation units of under pressure controlled ventilation system for residential high-rise building. Recommended concept of solution to façade detail in relation to ventilation system. Conceptual designs of alternatives of air inlet openings of under pressure controlled ventilation system for apartments of atypi

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8

Gamalia, A. N., S. N. N. Ekasiwi, and F. X. T. B. Samodra. "Acoustical and ventilation performance of school building near airport area in relation to Indoor Environmental Quality (IEQ)." IOP Conference Series: Earth and Environmental Science 1157, no. 1 (2023): 012005. http://dx.doi.org/10.1088/1755-1315/1157/1/012005.

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Abstract Buildings that prioritize natural ventilation have problems dealing with airborne noise. The Indoor Environmental Quality (IEQ) disturbance will be considered in the school design located around the airport. As a result, the disorder can cause Sick Building Syndrome (SBS). Thus, the aspect of natural ventilation and noise (acoustics) is a problem that must be compromised. This paper will report the results of measuring the IEQ parameters of ventilation and acoustic, indicated by changes in the ratio of window openings in an elementary school located closest to the airplane runway. The

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9

Oldham, D. J., Jian Kang, and M. W. Brocklesby. "Modelling the Acoustical and Airflow Performance of Simple Lined Ventilation Apertures." Building Acoustics 12, no. 4 (2005): 277–92. http://dx.doi.org/10.1260/135101005775219139.

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The pressure differences that can be used to drive a natural ventilation system are very small and thus large apertures are required to allow sufficient air to enter and leave a building to ensure good air quality or thermal comfort. Large apertures are potential acoustic weak points on a façade and may require some form of acoustic treatment such as absorbent linings, in which case the ventilator is similar to a short section of lined duct. In ducts, the performance of absorbent linings increases with the length of lining and the ratio of the length of lined perimeter to the cross sectional a

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10

Hoz-Torres, María L. de la, Antonio J. Aguilar, Diego P. Ruiz, and María Dolores Martínez-Aires. "Analysis of Impact of Natural Ventilation Strategies in Ventilation Rates and Indoor Environmental Acoustics Using Sensor Measurement Data in Educational Buildings." Sensors 21, no. 18 (2021): 6122. http://dx.doi.org/10.3390/s21186122.

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Indoor environmental conditions can significantly affect occupants’ health and comfort. These conditions are especially important in educational buildings, where students, teachers and staff spend long periods of the day and are vulnerable to these factors. Recently, indoor air quality has been a focus of attention to ensure that disease transmission in these spaces is minimised. In order to increase the knowledge in this field, experimental tests have been carried out to characterise the impact of natural ventilation strategies on indoor air quality and the acoustic environment. This study ha

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11

Jalil, Nurul Amira Abd, Nazli Bin Che Din, and Nila Inangda Manyam Keumala Daud. "A Literature Analysis on Acoustical Environment in Green Building Design Strategies." Applied Mechanics and Materials 471 (December 2013): 138–42. http://dx.doi.org/10.4028/www.scientific.net/amm.471.138.

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Acoustic quality is important in ensuring a healthy and workable working environment. One of green buildings main objective is to reduce the building impact on human health and performance. This was emphasized in most green building rating system under its requirement for Indoor Environmental Quality (IEQ). IEQ highlights the four main points for achieving an improved indoor environment: indoor air quality, acoustics, visual comfort (lighting) and thermal comfort. Although acoustics was mentioned in the IEQ criteria, according to previous surveys and studies; acoustics quality in green buildin

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12

Du, Liangfen, and Zheng Fan. "Study on noise insulation using double layered acoustic gratings." Journal of the Acoustical Society of America 156, no. 4_Supplement (2024): A16. https://doi.org/10.1121/10.0034946.

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Noise reduction technologies that enable natural ventilation have garnered significant attention, especially in densely populated cities like Hong Kong and Singapore. These technologies not only provide aural and thermal comfort but also serve as alternatives to air conditioning during cooling seasons, thereby reducing energy consumption in green buildings. Common passive solutions for noise reduction and natural ventilation include plenum windows, coiling-up-space structures, and Helmholtz resonator (HR)-based structures. However, achieving effective noise isolation, particularly at low frequ

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13

Bielek, Boris, and Daniel Szabó. "New Façade Ventilation Units of under Pressure Controlled Ventilation System." Advanced Materials Research 1057 (October 2014): 113–20. http://dx.doi.org/10.4028/www.scientific.net/amr.1057.113.

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Abstract (sommario):

Task of controlled ventilation in modern residential buildings is to ensure optimum quality of interior environment and fulfill hygienic and thermal technical requirements guaranteeing comfort of user. The paper discusses development and experimental verification of atypical vertical ventilation units of under pressure controlled ventilation system for residential high-rise building. Recommended concept of solution to façade detail in relation to ventilation system. Optimized alternative of air inlet openings in the bottom level of vertical pilaster with function of air distribution channel f

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14

Torresin, Simone, Rossano Albatici, Francesco Aletta, Francesco Babich, Tin Oberman, and Jian Kang. "Acoustic Design Criteria in Naturally Ventilated Residential Buildings: New Research Perspectives by Applying the Indoor Soundscape Approach." Applied Sciences 9, no. 24 (2019): 5401. http://dx.doi.org/10.3390/app9245401.

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The indoor-outdoor connection provided by ventilation openings has been so far a limiting factor in the use of natural ventilation (NV), due to the apparent conflict between ventilation needs and the intrusion of external noise. This limiting factor impedes naturally ventilated buildings meeting the acoustic criteria set by standards and rating protocols, which are reviewed in this paper for residential buildings. The criteria reflect a general effort to minimize noise annoyance by reducing indoor sound levels, typically without a distinction based on a ventilation strategy. Research has devel

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15

Lam, Man Sum, May Hang Grace Kwok, Siu Ming Cheung, Joanne Wai Yin Ng, and Wing Yee Tang. "A possible mitigation measures for urbanized residential care homes for elderly (RCHE) - acoustic window with natural ventilation." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 264, no. 1 (2022): 400–407. http://dx.doi.org/10.3397/nc-2022-748.

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Hong Kong is well known as a densely populated city, which has an explicit usage of road traffic as its transport backbone. Severe road traffic noise problem is resulted from poorly planning in past decades, leads to the development of typical baffle type acoustic window with only one outer and one inner opening to attenuate adverse traffic noise impact. Nevertheless, extensive noise mitigation measures while allowing natural ventilation are essential when designing a RCHE. In view of the concern of the limited accessibility of the elderlies, the equal opportunity at both sides of the room to

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16

Bravo, Teresa, and Cedric Maury. "Micro-perforated mufflers based on the Acoustic Black Hole effect." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 268, no. 5 (2023): 3296–307. http://dx.doi.org/10.3397/in_2023_0472.

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Attenuation of acoustic disturbance with compact and low-weight acoustical devices is a demanding requisite in industries such as vehicle exhaust mufflers, turbofan liners or ventilation systems. Acoustic Black Holes (ABH) is a concept that has been studied originally in the field of vibration control for the design of a structure based on a power-law thickness profiles along its edges. The idea of wave trapping and dissipation has been extended to the field of duct acoustics using compact devices that avoid blocking the air flow. Based on this idea, in this work we propose the study of a micr

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17

Gaj, Patryk, and Joanna Kopania. "Influence of Geometry of Channel on the Flow Noise Parameters." Mechanics and Mechanical Engineering 22, no. 2 (2020): 541–52. http://dx.doi.org/10.2478/mme-2018-0043.

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AbstractAcoustic emission through duct walls is an important problem in engineering acoustics. This phenomenon most commonly occurs in heating, ventilating and air-conditioning (HVAC) and other gas flow ducting (large industrial silencers). Many works focus on elaboration of more exact description of the acoustic field phenomena reflecting the real conditions in which these appliances operate. As a standard, circle or rectangular ducts are used in ventilation systems. However, technical conditions during the installation of the HVAC system, due to the limitation of the assembly space, require

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18

Lei, Yue, Yuzhen Peng, and Adrian Chong. "Indoor Environmental Quality assessment of mixed-mode ventilation with ceiling fans in the tropics." E3S Web of Conferences 396 (2023): 01086. http://dx.doi.org/10.1051/e3sconf/202339601086.

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Mixed-mode ventilation in buildings has a potential for significant energy savings. However, previous attempts in the tropics were unsuccessful due to the hot and humid weather. Indeed, there is little to no natural ventilation potential in tropical climates if conventional air conditioning systems are used. Additionally, existing studies typically do not consider the noise and air quality constraints while the performance of mixed-mode buildings is susceptible to outdoor conditions. Using elevated air movement has proven to be an effective strategy to offset the rise in the room temperature s

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19

TAN, Johann Kay Ann, and Siu-Kit LAU. "Generalization of noise insulation afforded by common window designs with active noise control exposed to moving noise source." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 270, no. 10 (2024): 1108–19. http://dx.doi.org/10.3397/in_2024_2780.

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A window device that can provide noise insulation while maintaining natural ventilation is highly desirable and is especially sought after in heavily noise-polluted and hot-humid climates cities, such as Southeast Asian cities. However, a solution to provide such a window is non-trivial because the design principles guiding acoustics and ventilation are diametrically opposed. While louvre windows have traditionally been used in communal, healthcare, and some educational setting to provide a balance between acoustics and ventilation benefits, it is still sorely lacking to provide sufficient ins

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20

Aguilar, Antonio J., María L. de la Hoz-Torres, Mª Dolores Martínez-Aires, and Diego P. Ruiz. "Monitoring and Assessment of Indoor Environmental Conditions after the Implementation of COVID-19-Based Ventilation Strategies in an Educational Building in Southern Spain." Sensors 21, no. 21 (2021): 7223. http://dx.doi.org/10.3390/s21217223.

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Since students and teachers spend much of their time in educational buildings, it is critical to provide good levels of indoor environmental quality (IEQ). The current COVID-19 pandemic has shown that maintaining a good indoor air quality level is an effective measure to control the transmission of the SARS-CoV-2 virus. This study used sensors to monitor key IEQ factors and assess several natural ventilation scenarios in a classroom of the University of Granada. Subsequently, the IEQ factors (temperature, relative humidity, CO2 concentration, acoustic environment, and air velocity) were evalua

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21

Kajitani, Keigo, Kiichiro Sawada, Thu Lan Nguyen, and Bach Lien Trieu. "Development of ventilation and sound insulation materials by the multi-objective optimization." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 268, no. 4 (2023): 4559–68. http://dx.doi.org/10.3397/in_2023_0650.

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Natural ventilation-based houses in tropical countries often suffer from poor acoustic performance. To address this issue, we developed ventilation and sound-absorbing materials using a multi-objective optimization program. The program was developed to design test specimens that optimize the sum of the flow velocities of all elements of the divided cylindrical 3D model for sound-absorbing ability and the sum of the flow velocities in the bottom elements of the model for ventilation ability, with the objective of maximizing both. By outputting the specimens using a 3D printer, we were able to s

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TOCHON-DANGUY, Samuel, Charlotte LAFFONT, and Adrien CLEMENT. "Acoustic Natural Ventilation Openings - OVNA : How to get rid of the impossible choice between too much heat inside or too much noise !" INTER-NOISE and NOISE-CON Congress and Conference Proceedings 270, no. 7 (2024): 4110–22. http://dx.doi.org/10.3397/in_2024_3415.

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Due to global warming, summer comfort in buildings is a prime issue, and so is indoor air quality. Natural ventilation is encouraged by "low-carbon" approaches to cool the buildings and reduce air-conditioning. However, remaining free constructible areas in dense cities are mainly noisy, and the inhabitants should not be forced to choose between too much heat inside or too much noise ! The first step is to anticipate buildings' façades " eligibility for natural ventilation through opened windows ", depending on their exposure to the forecoming noise sources. Since 2015 LASA has been carrying R

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23

Ulum, Muhammad S., Wenny Arminda, Maqbul Kamaruddin, and Widi Dwi Satria. "Ventilation Performance of Air Duct in Double Loaded Corridor Building: A Case Study." Civil Engineering Journal 9, no. 10 (2023): 2445–55. http://dx.doi.org/10.28991/cej-2023-09-10-06.

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Buildings with double-loaded corridor types are often found in Indonesia and generally function as offices or lecture rooms. This type of building is popular because of its efficient circulation path to accommodate the movement of occupants. However, a wall separating the room from the corridor makes it impossible to put windows to implement a cross-ventilation system due to acoustic problems. Hence, to achieve indoor thermal comfort, this type of building relies on using an air conditioning (AC) system. However, with the WHO's call to reduce the use of AC during the COVID-19 pandemic, it is n

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24

Lu, King Kwong, Maurice Yeung, Kit Wong, and Fanni Lin. "Development on acoustic louvre to enhance the noise reduction performance of acoustic balconies." Journal of the Acoustical Society of America 154, no. 4_supplement (2023): A86. http://dx.doi.org/10.1121/10.0022886.

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A balcony in a domestic flat provides residents an outdoor living space as well as better ventilation to improve indoor air quality. However, balcony door when open for natural ventilation will allow outdoor noise transmit into the residential flat. Innovative acoustic balcony design by installation of sound absorptive panels onto the balcony ceiling and side walls of balcony has been implemented in Hong Kong for mitigating road traffic noise. Recently, combined balcony with an extension of utility platform for installation of air-conditioning outdoor unit has become popular. However, the para

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Ang, Linus Yinn Leng, Fangsen Cui, Kian-Meng Lim, and Heow Pueh Lee. "A Systematic Review of Emerging Ventilated Acoustic Metamaterials for Noise Control." Sustainability 15, no. 5 (2023): 4113. http://dx.doi.org/10.3390/su15054113.

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As sustainability is one of the main pillars in developing future cities, adopting natural ventilation whenever possible is one way to reduce energy consumption, thus indirectly reducing carbon dioxide emissions. Lately, ventilated acoustic metamaterials have started to receive more research attention because of how they can provide both ventilation and noise control. Motivated by this research attention, we present this timely systematic review of emerging ventilated acoustic metamaterials for noise control. By limiting the review to a five-year coverage (2018–2023), three kinds of ventilated

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Biler, Ahmet, Aslihan Unlu Tavil, Yuehong Su, and Naghman Khan. "A Review of Performance Specifications and Studies of Trickle Vents." Buildings 8, no. 11 (2018): 152. http://dx.doi.org/10.3390/buildings8110152.

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The air quality of indoor spaces is the most significant parameter in providing a healthy living environment. Low indoor air quality (IAQ) leads to Sick Building Syndrome—one of the major reasons for labor loss in office buildings. The fundamental measure to ensure indoor air quality is ventilation, which includes two basic types: mechanical ventilation and natural ventilation. Natural ventilation is an exchange of stale indoor air with fresh outdoor air by means of a pressure difference due to wind and/or stack effect. Trickle Vents, known also as background ventilators, are natural ventilati

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Granzotto, Nicola. "Optimization of Controlled Mechanical Ventilation Systems for Indoor Acoustic Comfort." Designs 5, no. 3 (2021): 48. http://dx.doi.org/10.3390/designs5030048.

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The indoor air quality inside living spaces is a fundamental factor in providing adequate comfort. In order to do this, a minimum air exchange must be ensured. This can be obtained by means of natural or mechanical ventilation or using the Controlled Mechanical Ventilation system (CMV). CMV ensures better energy performance, as in the winter period, the warm air that comes out of the building preheats the cold air that enters, and the opposite occurs in the summer period. A possible problem with CMV is the noise of the fans due to the movement of air and to the electric motor rotation. This wo

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SHTREPI, Louena, Andrea GERBOTTO, Fabio FAVOINO, and Arianna ASTOLFI. "Sound insulation characterisation of innovative natural ventilated façade in the context of living lab installations." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 270, no. 1 (2024): 10094–102. http://dx.doi.org/10.3397/in_2024_4388.

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Building acoustic standards like EN 14351 and ISO 10140 regulate the measurement of sound insulation of transparent elements, with indications of the test sample dimensions, test conditions, and criterions of adaptations of the results to different on-site conditions. However, given the research on innovative transparent building envelope including internal ventilation as double skin facades, these methodologies present limitations related to the characterization of the high variability of operating conditions in real in-field conditions. To this aim the acoustic performance could be explored

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Fusaro, Gioia, Massimo Garai, and Jian Kang. "Broadband potential optimisation of a full scale acoustic metawindow performance." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 265, no. 3 (2023): 4032–39. http://dx.doi.org/10.3397/in_2022_0574.

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Noise control and airflow in duct-like systems are among some of the most interesting applications to conjugate AMMs innovation and sustainability. Specifically applied to the built environment, they opened up a new field of research supporting indoor wellbeing, sanitised environments, and public activities. Previous research conducted by the authors has proved AMM based window to be a resourceful way to address both natural ventilation and reduce the incoming noise propagation; however, the effective spectral range did not cover lower frequencies (50-350 Hz). For this reason, in the presented

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Zaniboni, Luca, and Rossano Albatici. "Natural and Mechanical Ventilation Concepts for Indoor Comfort and Well-Being with a Sustainable Design Perspective: A Systematic Review." Buildings 12, no. 11 (2022): 1983. http://dx.doi.org/10.3390/buildings12111983.

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Current literature and guidelines on sustainable design often debate on the advantages of natural ventilation (NV) and mechanical ventilation (MV) on indoor environment and energy consumption. The present systematic review explores the existing literature comparing NV and MV on the indoor comfort and well-being points of view. The findings emphasize that thermo-hygrometric comfort is the main driver of occupants’ ventilation behavior, while ventilation design is mainly led by indoor air quality targets. Moreover, more recent papers (especially after COVID-19 outbreak) emphasize the necessity o

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Lee, Heow Pueh. "Reconfigurable sonic crystals with built-in Helmholtz's resonators for noise mitigation." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 268, no. 7 (2023): 1102–6. http://dx.doi.org/10.3397/in_2023_0166.

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Natural ventilation is desirable for improving the air quality against airborne transmission of viruses. On the other hand, a good noise barrier would not have any opening for effective noise mitigation as noise can enter the space with the natural ventilation. The use of noise shields and noise barriers for shielding a piece of noisy machine may also drastically cut down the natural ventilation which will be required for preventing heat built-up in the engine room. In this paper, acoustic metamaterials in the form of sonic crystals with built-in Helmholtz's resonators are designed for targeti

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Thanushree, Nagendra, Sandilya Uditi, and Nischay N. Gowda Dr. "Beyond Function: How Interior Space Design Affects Productivity, Creativity and Collaboration in Design-Centric Offices." International Journal of Trends in Emerging Research and Development 2, no. 6 (2024): 167–77. https://doi.org/10.5281/zenodo.14597323.

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The impact of interior design components on employee creativity and productivity in design-focused workplaces is examined in this study. Based on a number of case studies, the study assesses how ergonomics, lighting, natural ventilation, spatial layouts, acoustics, and colours affect workplace dynamics and employee experiences. It emphasizes how crucial these elements are to establishing the best possible atmosphere that encourages both solo and group performance in the creative professions. Lighting is a major factor in productivity; well-designed artificial lighting promotes visual comfort a

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Harvie-Clark, Jack, Nick Conlan, Nicholas Dobinson, and Rupert Kazlauciunas. "A new Building Regulation for overheating: practical considerations for the acoustic constraints." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 265, no. 2 (2023): 5235–46. http://dx.doi.org/10.3397/in_2022_0764.

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A new Building Regulation to mitigate overheating applies in England from June 2022. A requirement of the regulation is that the strategy to mitigate overheating must be usable, considering occupants' safety and comfort. If internal noise levels exceed 40 dBA Lnight, or 55 dB LAmax more than 10 times a night, then windows cannot be assumed to be open during the night time period. This paper discusses a triage process to consider the noise risk, the practical methods and uncertainties in the noise survey, environmental noise modelling, calculation of facade sound insulation with windows suffici

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Chen, Tianhao, Zinuo Huang, and Jiani Yu. "Vibration and noise analysis of a 5000 DWT stainless steel chemical tanker based on the finite element method." Journal of Physics: Conference Series 3021, no. 1 (2025): 012041. https://doi.org/10.1088/1742-6596/3021/1/012041.

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Abstract This study evaluates the noise of a 5000 DWT stainless steel chemical tanker using finite element and acoustic methods. Vibration characteristics of the superstructure were analysed to ensure natural frequencies meet design standards. VA ONE software predicted noise levels in various areas, assessing contributions from the main engine, propeller, and ventilation system and suggesting noise reduction measures. The results confirm the vibration design meets frequency requirements, and noise levels comply with the IMO MSC.337(91) standard, supporting further ship design optimisation.

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Jin, Yue, and Ning Zhang. "Comprehensive Assessment of Thermal Comfort and Indoor Environment of Traditional Historic Stilt House, a Case of Dong Minority Dwelling, China." Sustainability 13, no. 17 (2021): 9966. http://dx.doi.org/10.3390/su13179966.

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The stilt house is one of the most representative of Chinese architecture among national minority traditional dwellings, most of which are located in mountainous regions whose climate is characterized by hot summers and cold winters. Moreover, it is widely distributed in Southeast Asian countries, such as Thailand, Laos, Cambodia, etc., as well as tropics like Hawaii, Guam. These kinds of dwellings have unique architectural aesthetics as well as high climate adaptability. However, because of their remote locations and rapid disappearance in urbanization, few studies have focused on their real

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Chung, Andy W., and Wai Ming To. "Hybrid VR and physical kiosks for soundscape design in urban planning." Journal of the Acoustical Society of America 156, no. 4_Supplement (2024): A94. https://doi.org/10.1121/10.0035221.

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Abstract (sommario):

In response to the challenge of urban noise pollution, innovative noise mitigation measures, such as acoustic windows and balconies, have been developed to effectively reduce traffic noise while allowing natural ventilation. To engage stakeholders and demonstrate the effectiveness of these innovations, a physical kiosk equipped with an acoustic window was created, along with a complementary Virtual Reality (VR) experience. This setup aims to create a near-real perception of the sonic environment, allowing users to experience noise reduction capabilities along with other sensory effects. Throug

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Nurdiani, N., and A. K. Zahran. "The Implementation of Tropical Architecture in Office Building for Supporting Sustainable Environment." IOP Conference Series: Earth and Environmental Science 1488, no. 1 (2025): 012087. https://doi.org/10.1088/1755-1315/1488/1/012087.

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Abstract The increasing development and economic growth in Indonesia have resulted in an increase in national energy needs. However, these development activities can have negative impacts on the environment such as air, land and water pollution and carbon dioxide emissions. Green architecture is an approach that tries to minimize these negative impacts to support the realization of a sustainable environment. The concept of working with climate is one aspect of green architecture that involves considering natural conditions, thermal, visual and acoustic comfort, natural ventilation and lighting

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38

Maciel, M. A., G. A. Zuffi, and M. A. V. Duarte. "MODELING AND OPTMIZATION POWER REQUIREMENTS OF ACTIVE ACOUSTIC LOUVRES." Revista de Engenharia Térmica 14, no. 2 (2015): 77. http://dx.doi.org/10.5380/reterm.v14i2.62138.

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The development of new technologies for ventilated facades is within the context of energy efficiency of buildings , including the compatibility of the dichotomy between natural ventilation and soundproofing in tropical countries . Given this perspective, this work proposes the application of techniques for active noise control in acoustic louvers . One limitation of the spread of technical active noise control in buildings is the energy inherent in the technique. Thus, the proposed system is based on the reduction of structural vibrations of the shutter blades by using piezoelectric actuators

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Chu, Yijing, Ming Wu, Hongling Sun, Jun Yang, and Mingyang Chen. "Some Practical Acoustic Design and Typical Control Strategies for Multichannel Active Noise Control." Applied Sciences 12, no. 4 (2022): 2244. http://dx.doi.org/10.3390/app12042244.

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Abstract (sommario):

Active noise control (ANC) systems usually involve a large number of loudspeakers and error microphones in order to achieve noise reduction over an extended region of space. Although fundamentals of ANC theory and principles of ANC methods have been well-established over the past 40 years, applications of this technology are facing new challenges. A larger quiet zone with better noise reduction performance is always desirable in a variety of real-life scenarios. This paper presents several important factors that affect the performance of multichannel ANC systems in some popular applications su

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Inoue, Mizuki. "Consideration of "Adaptive acoustic comfort" in Office with surveying current office." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 268, no. 6 (2023): 2308–17. http://dx.doi.org/10.3397/in_2023_0340.

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Abstract (sommario):

Recently, some companies would like to have outdoor space or natural ventilation system in their office to save energy and prevent the spread of infectious diseases. Sometimes it is difficult to achieve the traditional target noise level in such spaces. However, it is very valuable for employees to be able to breathe fresh air, feel the breeze, and feel that the air is clean. Several surveys have shown that factors other than noise sometimes have a greater impact on space satisfaction. To design a comfortable space, we need to consider several factors while keeping the noise level acceptable i

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41

Curto, Domenico, Andrea Guercio, and Vincenzo Franzitta. "Investigation on a Bio-Composite Material as Acoustic Absorber and Thermal Insulation." Energies 13, no. 14 (2020): 3699. http://dx.doi.org/10.3390/en13143699.

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Abstract (sommario):

In order to limit the anthropic emissions of CO2, research is currently investigating new materials for the building sector. The main purpose is the reduction in the embodied energy consumption, especially in the residential sector, and consequently the limitation of the direct and indirect utilization of fossil fuels, for the indoor heating, cooling, and ventilation services. Indeed, the residential sector is affected by a high energy demand, thus the choice of improved materials is fundamental to improve the sustainability. All phases: construction, building life, and dismantling are impacti

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COOKE, J. T. "Natural ventilation and acoustic privacy in settlement cores: a review of window technology and night-time economy planning policy." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 270, no. 1 (2024): 10263–79. http://dx.doi.org/10.3397/in_2024_4962.

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Abstract (sommario):

This study reviewed the potential of partially open windows to address the challenges of natural ventilation and night-time airborne noise within settlement cores. These areas, which often feature historic buildings, require sensitive interventions to balance the conservation of heritage with the need for liveable, sustainable cities. The 'night-time economy' (NTE) encompasses a diverse range of businesses, services, and events that operate beyond traditional daytime hours, such as restaurants, bars, nightclubs, entertainment venues, cultural events, and 24-hour services. Night-time noise dist

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43

Ilfiani, Pratiwi Dian, Suprapto Siswosukarto, and Djoko Sulistyo. "EVALUASI HUBUNGAN BIAYA INVESTASI TERHADAP KUALITAS KENYAMAN PADA PERUMAHAN." INERSIA: lNformasi dan Ekspose hasil Riset teknik SIpil dan Arsitektur 15, no. 2 (2019): 44–59. http://dx.doi.org/10.21831/inersia.v15i2.28621.

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ABSTRACTThe demand for housing has never stopped because the population growth always increased. Technical Guidelines for the Construction of Healthy Houses issued by the Minister of Regional Regional Development states that a house as a place of residence must meet indoor health and comfort requirements which is influenced by lighting, airing, air temperature and humidity. This study uses natural lighting, natural ventilation, room humidity and acoustic comfort as variables. The object of this study is limited to the building area of a maximum of 70 m2 with four sample that maintain the origi

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Manca, Sara, Veronica Cerina, Valentina Tobia, Simona Sacchi, and Ferdinando Fornara. "The Effect of School Design on Users’ Responses: A Systematic Review (2008–2017)." Sustainability 12, no. 8 (2020): 3453. http://dx.doi.org/10.3390/su12083453.

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Abstract (sommario):

This systematic review focused on the effect of the educational environment design on students’ and teachers’ performance, satisfaction, and wellbeing. Starting from a bulk of 1307 articles, a set of N = 68 empirical papers was selected and organized on the basis of four different content clusters, i.e., architectural building design and aesthetic features, indoor environmental features, classroom design, and school green spaces/outdoor spaces. From the analysis of research findings, the key role of pleasant, warm, and flexible learning environments emerged, for promoting both wellbeing and pe

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45

Lahayrech, Safaa, Monica Siroux, Anas El Maakoul, Ismail Khay, and Alain Degiovani. "A Review: Ventilated Double-skin Façades." IOP Conference Series: Earth and Environmental Science 1050, no. 1 (2022): 012019. http://dx.doi.org/10.1088/1755-1315/1050/1/012019.

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Abstract (sommario):

Abstract In the aim of reducing the effect of climate change on the environment, multiple energy efficient solutions have been developed in all energy-consuming sectors around the world, especially smart building design strategies in the building sector. One of these technologies are Ventilated Double-Skin Façades (VDFs), which use the thermal interaction between the external environment and the internal space of a building in order to reduce its heating or cooling loads and thus reduce the greenhouse gas emissions. They also offer multiple other benefits, depending on several parameters, incl

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46

Chan, Isabelle Y. S., and Hao Chen. "Lessons Learned from the COVID-19 Pandemic: A Multigroup Structural Equation Modelling of Underground Space Environment and Users’ Health." Buildings 13, no. 5 (2023): 1321. http://dx.doi.org/10.3390/buildings13051321.

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Abstract (sommario):

Due to the inherent limitations of underground spaces, such as the lack of natural ventilation and sunlight, underground space users tend to face more health risks compared with their aboveground counterparts. However, little is known about how the underground environment, users’ health, and their associations were impacted by the outbreak of the pandemic. In this study, we investigated and compared the impacts of the general underground environment on regular users’ physical and psychological health before and after the pandemic. To achieve this aim, the data from 525 surveys were collected f

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Tang, SK, and Rudolf YC Lee. "Noise reduction of enhanced acoustic balconies on a high-rise building block." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 1 (2021): 5327–34. http://dx.doi.org/10.3397/in-2021-3050.

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Abstract (sommario):

A new device called 'enhanced acoustic balcony' is installed in a new housing estate in Hong Kong. It is intended to help reduce the impact of traffic noise on the residents. This balcony is basically an enlarged form of a plenum window and with three openings. Apart from the outdoor air inlet, there is the balcony door and a side-hung window on the interior balcony wall for natural ventilation of the indoor space. Sound absorption of NRC 0.7 is installed on the balcony ceiling and its sidewall facing the incoming traffic noise and an inclined panel is installed outside the balcony to provide

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48

Ordóñez, Jose Manuel Bautista, and Maria Alzira de Araújo Nunes. "Component Mode Synthesis Method Applied to Acoustic Resonators in Ducts for Structural Vibration Analysis." International Journal of Acoustics and Vibration 25, no. 4 (2020): 498–503. http://dx.doi.org/10.20855/ijav.2020.25.41638.

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Abstract (sommario):

Tubular structural systems appear in many industrial applications, such as heating, ventilation, and air conditioning systems, which are responsible for making any enclosed environment remain within a temperature, humidity, and cleanliness range. This kind of system has its applications in the internal environmental comfort of industrial spaces, buildings, and vehicles. Several of these spaces have industrial processes that generate high sound frequencies and mechanical vibrations that need to be adequately controlled to meet both environmental and health norms. With the intention to analyze t

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49

Meyer, J., and B. Hedwig. "The influence of tracheal pressure changes on the responses of the tympanal membrane and auditory receptors in the locust Locusta migratoria L." Journal of Experimental Biology 198, no. 6 (1995): 1327–39. http://dx.doi.org/10.1242/jeb.198.6.1327.

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Abstract (sommario):

In resting tethered locusts, the effect of slow changes in tracheal air pressure on peripheral auditory information processing was analysed. The tympanal membrane vibrations, the pressure inside the tracheal system and the summed activity of the auditory receptors were measured simultaneously. With the membrane in the resting position, laser vibrometry and Fast Fourier Transformation analysis of sound-induced membrane vibrations demonstrated characteristic power spectra at the attachment sites of the high-frequency and low-frequency receptors. The spectra were different above 9 kHz, but very s

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50

Gültekin, Aysenur, and Jihyun Park. "A Comparative Study on the Sustainable Evaluation of DGNB and G-SEED Focusing on IEQ Enhancement." Buildings 13, no. 10 (2023): 2538. http://dx.doi.org/10.3390/buildings13102538.

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Abstract (sommario):

This paper aims to compare the sustainability assessment methods of DGNB and G-SEED, the two domestic green building rating systems, focusing on indoor environmental evaluation and reviewing recent laws, certifications systems, and guidelines from Germany and South Korea. According to existing studies, Korea’s green building certification has similar evaluation items, environmental (62.6%), social aspects (25.4%), and economic aspects (3.0%) compared with DGNB. Continuing research comparing DGNB and G-SEED, this paper will present an insight into the DGNB and G-SEED green building rating syste

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