Theoretical and Experimental Study on the Transmission Loss of a Side Outlet Muffler

Zhang, Liang; Shi, He-Mu; Zeng, Xie; Zhuang, Zhuo

doi:10.1155/2020/6927574

Cited by 13 publications

(12 citation statements)

References 19 publications

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“…e turbulent component is described by the power spectral density. Considering that the turbulence component represents the distribution of wind speed in the frequency domain and the dynamic simulation of the power system is carried out in the time domain, this item is replaced by random noise [23,24]. New wind speed models are mean value, slope component, gust component, and random wind [25].…”

Section: Modeling Of Wind Power Systemsmentioning

confidence: 99%

Modeling and Control of Wind Speed in Renewable Energy Power Generation and Wind Power Generation Systems

Shan

Shixuan

Liu

et al. 2022

Security and Communication Networks

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Wind energy is one of the most used clean energy sources in renewable energy, and its renewable and sustainable nature is one of the reasons why it is used for power generation. In the current environment where all countries in the world are facing energy problems, research on wind power generation systems is also increasing. This article aims to study the problem of modeling and controlling wind speed in the wind power generation system of renewable energy power generation. To this end, this article proposes a modeling method for wind power generation systems, which can be used to study the momentum problems in wind power generation and the mechanical torque of the generator. And at the end of the article, related experiments and analysis are designed to explore and compare its operating cost, speed, and wind wheel speed. The experimental results in this paper show that through effective modeling and control of its wind speed, the economic risks in the actual wind power generation system can be controlled, with a maximum reduction of 24%, and the actual operating cost is also reduced by 8.66%, so wind power has high practical value.

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Section: Modeling Of Wind Power Systemsmentioning

confidence: 99%

Modeling and Control of Wind Speed in Renewable Energy Power Generation and Wind Power Generation Systems

Shan

Shixuan

Liu

et al. 2022

Security and Communication Networks

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“…The equation ( 10) is used for calculating experimental Transmission Loss. (8,9) . One microphone is set at site 3 and the others at locations 1, 2, and 4 to get transfer function H31, H32, and H34 with respectable placements.…”

Section: Methods Of Two Loadsmentioning

confidence: 99%

Effect of Variations in Diameter of Extended Inlet on Transmission Loss of Single Expansion Chamber Reactive Muffler with Extended Inlet

Suratwala¹,

Kulkarni²

2023

IJST

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Objectives: Muffler with extended inlet has an additional dimension of variable compared to normal mufflers, that is the diameter. Understanding the effect of change in this diameter value affects Transmission Loss. Muffler used for experimentation is a reactive muffler, which cancels the noise waves using reflection phenomenon. Comparison of Computer Aided Engineering (CAE) in experiments to signify the technology advancement. Methods: MATLAB program is created for running the data and analytical solution. Finite element analysis with COMSOL Multiphysics using 3D model of muffler and computer aided engineering is done considering boundary conditions. The real experiment is carried out to evaluate confidence in simulated results where two load method is applied. Findings: Experimental setup results are showing results close to Numerical analysis. Analysis of the study suggest increase in diameter leads to rise in transmission loss. The experimental results of selected dimensions setup also prove same. Various geometric variation in muffler have effect of 10 to 30% on TL, while changing diameter from 10 to 20 mm of extended inlet raise the peak of TL to almost double and increase the average TL by 28%. Novelty: A diameter variation in extended inlet is an empty space in literature till now. This research combines analytical and experimental setups and comparison of results leads to a strong conclusion toward better muffler design.

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“…As early as the 1970s, the concept of information integration was gradually proposed, and the concept of "data fusion" introduced by JDL laboratory experts in the United States put forward that the concept of information fusion was widely used in the 1990s. From the initial military field to today's, various industries have applications [11][12][13]. The core of data fusion is coordination, optimization, and comprehensive processing.…”

Section: Background Of Information Fusion Technologymentioning

confidence: 99%

Wearable-Based Virtual Display Information Processing and Data Fusion Research

Lv¹,

Liu

2022

Mobile Information Systems

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This paper is combined with the existing acquisition module design to achieve the upper computer online information monitoring system. Real-time mapping technology is adopted to change the trend of data collection potential for real-time tracking and monitoring. The monitoring data can be predicted and analyzed by changing trend, at the same time combined with SQL2008 database technology, user login system, registration system, monitoring system, data query, and data storage system. The integration and other functions are improved, so that the system not only has the advantages of information management platform but also realizes the remote client base matching layer wireless information real-time monitoring function. Data fusion technology refers to the information processing technology that uses computer to automatically analyze and synthesize some observation information obtained in time and sequence under certain criteria, so as to complete the required decision-making and evaluation tasks. The intelligent wearable online information monitoring system designed in this paper realizes wireless sensor network, to some extent feedback and monitoring of underlying real information. Through the corresponding information processing and data fusion, the user can easily and clearly get product information. Based on the existing 80 sets of data, the experiment trains and extracts 320 feature vectors, which verify the effectiveness of the method.

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Theoretical and Experimental Study on the Transmission Loss of a Side Outlet Muffler

Cited by 13 publications

References 19 publications

Modeling and Control of Wind Speed in Renewable Energy Power Generation and Wind Power Generation Systems

Modeling and Control of Wind Speed in Renewable Energy Power Generation and Wind Power Generation Systems

Effect of Variations in Diameter of Extended Inlet on Transmission Loss of Single Expansion Chamber Reactive Muffler with Extended Inlet

Wearable-Based Virtual Display Information Processing and Data Fusion Research

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