Abstract
When choosing silencers in air conditioning, it is necessary to pay attention not only to the acoustic attenuation, but also to the pressure loss of the silencer. If the pressure loss of the damper is too high, noise will occur directly in the damper. The pressure losses of the silencers are determined mainly experimentally. Based on the performed measurement, a CFD model of the selected silencer was constructed, where the influence of various parameters on the value of the pressure loss of the selected silencer was investigated.
Highlights
Great emphasis is placed on reducing the noise associated with the operation of air conditioning systems, so components are built into the piping network, whose task is to attenuate and absorb this noise
Great emphasis is placed on the pressure losses of air-conditioning components
The work addresses the issue of determining the pressure loss of link silencers in determining the coefficient of local pressure loss
Summary
Great emphasis is placed on reducing the noise associated with the operation of air conditioning systems, so components are built into the piping network, whose task is to attenuate and absorb this noise. For the correct design of the system, it is necessary to know the pressure loss of individual components of the pipeline network. When designing a silencer in practice, the pressure drop of this component is often forgotten and only its acoustic attenuation of the sound is evaluated. An integral part of various measurements and experiments is a computational model constructed using CFD methods. The created computational model must be verified by measurement. This verified model can greatly facilitate further experiments, as it can be used to solve similar tasks
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