混响室内扩散器声散射系数的实验研究

IF 1.4 Q4 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY

Environmental and Climate Technologies Pub Date : 2023-01-01 DOI:10.2478/rtuect-2023-0034

Olga Khrystoslavenko, Raimondas Grubliauskas

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引用次数: 1

摘要

木炭是一种可持续的、可再生的、环保的材料，利用声学装置可以生产。由木材废料制成的木炭可以改善室内的声学质量。因此，本文的目的是研究橡木木炭元素穿孔比对QRD声散射系数的影响。通过测量混响室内的混响时间计算声散射系数。散射系数的计算结果表明，散射系数随频率的增加而增加，在木炭扩散器N7中，散射系数的最大值达到0.88。扩散器对声波的扩散效果随着井数的增加而增加。与不含木炭的扩散器相比，木炭含量为80%的扩散器的散射系数更高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Experimental Studies of the Sound Scattering Coefficient of the Diffuser in the Reverberation Chamber

Abstract Wood charcoal is a sustainable, renewable, and environmentally friendly material with the use that the acoustic device can produce. Charcoal made of wood waste materials allows for improving indoor acoustical quality. Therefore, this objective of the article is to investigate the sound scattering coefficients of QRD with the perforation ratio of oak wood charcoal elements. Sound scattering coefficient calculated with the measurement of the reverberation time in the reverberation chamber. The calculation results of the scattering coefficient show the growth of scattering in the frequencies - the highest value reached 0.88 (diffuser N7 with charcoal). The effectiveness of diffusers to diffuse sound waves increases as the number of wells grows. The diffuser with 80 % charcoal elements showed a higher scattering coefficient compared to the diffuser without charcoal elements.

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来源期刊

Environmental and Climate Technologies GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY-

CiteScore

3.10

自引率

28.60%

发文量

审稿时长

16 weeks

期刊介绍： Environmental and Climate Technologies provides a forum for information on innovation, research and development in the areas of environmental science, energy resources and processes, innovative technologies and energy efficiency. Authors are encouraged to submit manuscripts which cover the range from bioeconomy, sustainable technology development, life cycle analysis, eco-design, climate change mitigation, innovative solutions for pollution reduction to resilience, the energy efficiency of buildings, secure and sustainable energy supplies. The Journal ensures international publicity for original research and innovative work. A variety of themes are covered through a multi-disciplinary approach, one which integrates all aspects of environmental science: -Sustainability of technology development- Bioeconomy- Cleaner production, end of pipe production- Zero emission technologies- Eco-design- Life cycle analysis- Eco-efficiency- Environmental impact assessment- Environmental management systems- Resilience- Energy and carbon markets- Greenhouse gas emission reduction and climate technologies- Methodologies for the evaluation of sustainability- Renewable energy resources- Solar, wind, geothermal, hydro energy, biomass sources: algae, wood, straw, biogas, energetic plants and organic waste- Waste management- Quality of outdoor and indoor environment- Environmental monitoring and evaluation- Heat and power generation, including district heating and/or cooling- Energy efficiency.