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Control Measures for The Noise of Diesel Generator Set

Sep. 25, 2023

Do you know how to effectively control the noise of diesel generator sets? Diesel generator sets make a lot of noise when they move. Let's take a brief look together! The effective method to control exhaust noise is to install exhaust mufflers: the main reason is that the structural design of the mufflers is unreasonable, and there are problems with the processing technology. Improvement can be made by improving the process level. Usually, muffler design is mainly based on experience, and some design calculation programs are carried out under ideal assumptions. In these assumptions, the actual impact is to ignore the presence of airflow, as well as the presence of high-pressure, high-temperature, and high-speed pulsating airflow.

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The airflow in this state will affect the sound field distribution, sound velocity, and sound propagation law of the muffler, especially the airflow velocity. The main reason why airflow affects the performance of a muffler is the high-speed pulsating airflow generated noise in the engine exhaust. Secondly, airflow can affect the acoustic components of the muffler, such as pipes, shells, and partitions, thereby stimulating vibration and radiation noise. When the structural parameters of the muffler are improperly selected or the structure is unreasonable, or there are problems with the processing technology, it can lead to a decrease in the muffler's noise reduction performance.

At the same time, excessive airflow speed can also increase the pressure loss of the muffler, leading to a decrease in its noise reduction performance. Control of engine surface radiated noise: The control of engine surface radiated noise is limited by engine performance, which is technically difficult and has limited noise reduction effects. Practice has shown that adopting structural measures can to some extent reduce engine surface radiation noise, thereby reducing engine noise. The basic measure of control is to increase the stiffness and damping of the structure to reduce its surface response under the same excitation force.

Since 1982, Dingbo Generator has been a generator set manufacturer qualified by the "National Internal Combustion Engine Quality Supervision and Inspection Center". The product quality has passed the IS09001 quality system standard certification. And obtained the qualification certificate for self-operated import and export. Over the years, Dingbo units have been widely used in all walks of life, and have won the network access qualification of the Ministry of Information Industry, the network access qualification of the Ministry of Radio and Television, the network access qualification of CNPC, the network access qualification of China Mobile, and the manufacturing qualification of marine units. In 2016, Dingbo was awarded the Certificate of Qualified Supplier of China Nuclear Power Group. Dingbo Generator has been cooperating with Shangchai Power for many years. In 2009, it became the OEM partner of Shangchai Power in China. Dingbo generator VOLVO unit ranks the top three in the Asia-Pacific sales volume, and is the core OEM partner of Sweden Volvo in the Asia-Pacific region. If any question please feel free to visit our website https://www.dieselgeneratortech.com/ or send email to sales@dieselgeneratortech.com.

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