Verification of the impact of the used type of excitation noise in determining the acoustic properties of separating constructions

Lumnitzer, Ervin; Andrejiová, Miriam; Bodnárová, Alexandra Goga

doi:10.1016/j.measurement.2015.09.030

Cited by 9 publications

(4 citation statements)

References 4 publications

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“…It is usually an expression of the heat release rate and its components, the density of the heat release rate, the temperatures, the amount of smoke generated, the pressure ratios, etc. [3,4].…”

Section: Design Fire Scenario and Design Firementioning

confidence: 99%

“…All phases of a fire can be described by fire parameters, the most significant of which include fire area, fire perimeter, linear rate of spread, rate of flare-up of materials, flame height, flame temperature, heat release rate, heat flux density, and others. Using the fire phases and their parameters, the dynamics of the developing fire and its predicted effects on the surrounding environment, i.e., the building structure, can be described [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

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Fire Models as a Tool for Evaluation of Energy Balance in Burning Space Relating to Building Structures

et al. 2022

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Fire is defined as an extremely hazardous event, causing a threat to life and health of persons, but also damage to the economic sphere. It has been shown many times that fire can occur anywhere and at any time. In order to minimize the risk of fire manifestations, it is necessary to understand its course. In technical practice, computational models are used to determine the partial manifestations of fire, such as fire spread rate, smoke generation rate in the burning area, formation of toxic burning products, flame height, and others. One of the important characteristics is also the energy balance in the burning area relating to the character of burning material, access of oxygen necessary for exothermic reaction of burning, and reaction of the installed safety devices. In this paper we will point out the fire safety of the building. The FDS (Fire Dynamics Simulator) model is recently used in practice, and its advantage is the possibility to model fire even in large and atypical spaces. The contribution of this paper is the practical application of fire safety of construction using the FDS Model, to reduce the cost of fire safety for the structure being constructed. Attention was paid to evaluating how the heat energy that is released during a fire can be influenced by the installed stable fire-extinguishing equipment, taking into consideration the fire resistance of the building structures.

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Section: Design Fire Scenario and Design Firementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fire Models as a Tool for Evaluation of Energy Balance in Burning Space Relating to Building Structures

et al. 2022

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“…Most of the buildings in Europe are located in urban areas and outdoor traffic noise is perceived as one of the main pollutants that influence occupants' life quality and well-being [28][29][30]. It has been estimated that about 80 million people are exposed to unacceptable noise levels and almost 170 million people live in areas where noise causes sleep disturbance, adverse health effects and serious annoyance [30][31][32]. Given the impact unwanted sound has on the acoustic comfort in an indoor environment, it is necessary to take measures to protect these spaces from noise.…”

Section: Sound Insulation Against External Noisementioning

confidence: 99%

A soft-sensing approach for the evaluation of the acoustic comfort due to building envelope protection against external noise

et al. 2019

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“…These expectations imply performance-related requirements on road pavement surfaces, such as skid resistance, evenness, and homogeneity without distress, along with low noise and pollution emissions [1,2].The performance-related and safety characteristics of a surface change owing to traffic loading and environmental effects; so, do its acoustic properties. Some authors [3][4][5][6][7] have conducted acoustic assessments on different surfaces with different characteristics, e.g., based on surface texture (texture depth), unevenness, and distress (no distress, cracking, alligator cracking, and ravelling), under different traffic flow conditions (vehicle type, speed), and by different measurement methods. The results were thus influenced by several factors, and are difficult to compare with each other.…”

mentioning

confidence: 99%

The Correlation Between the Statistical Pass-By Index Values and the Total Number of Vehicle Passes

Decký

Remišová

Brna

et al. 2021

Civil and Environmental Engineering

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In this study, the traffic noise degradation in asphalt pavements was analysed using the ‘Statistical Pass-By method’. The sound levels of two surfaces were monitored during 9 and 12 years of service, respectively. By comparing the dependencies of the maximum A-weighted sound pressure level on logarithm of vehicle velocity, an increase in the sound level was found at all recorded speeds. Following an analysis of sound levels, as combined with the statistical pass-by index (SPBI) calculated versus age (expressed in vehicles), it was determined that the noise is an increasing power function of SPBI values on vehicle passes, based on an approximation of noise level adjustment to a reference temperature of 20 °C (using a coefficient of 0.06 for asphalt concrete surface AC11 and - 0.03 for mastic asphalt SMA11). The adjusted traffic noise degradation model showed that the SMA11 surface has a higher resistance to acoustic degradation than AC11 surface.

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Verification of the impact of the used type of excitation noise in determining the acoustic properties of separating constructions

Cited by 9 publications

References 4 publications

Fire Models as a Tool for Evaluation of Energy Balance in Burning Space Relating to Building Structures

Fire Models as a Tool for Evaluation of Energy Balance in Burning Space Relating to Building Structures

A soft-sensing approach for the evaluation of the acoustic comfort due to building envelope protection against external noise

The Correlation Between the Statistical Pass-By Index Values and the Total Number of Vehicle Passes

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