Abstract
The gas control point (GCP) and the gas pipelines outgoing from it represent one of the sources producing noise at thermal power plants (TPPs). The noise from this equipment can exceed the sanitary standards on the plant territory and in the surrounding area by tens of decibels. Installation of acoustic barriers is one of the measures to reduce the noise from the gas control point building. The effect of various process openings necessary for the passage of maintenance personnel and passage of equipment to the GCP on the acoustic efficiency of barriers is considered. The influence of additional straight and L-shaped acoustic barriers on the reduction of the noise level is investigated. To solve this problem, the Predictor computer program was used, in which barriers with different characteristic process openings around the GCP building were modeled. Sound level isolines have been plotted using the Predictor computer program, which make it possible to visualize the propagation of noise with the process opening widths ranging from 2 to 6 m and with the presence of additional straight and L-shaped barriers in front of them. It is shown that the presence of process openings for maintenance of the GCP building and for passage of special equipment significantly degrades the acoustic efficiency of the GCP building barrier. The use of additional barriers installed in front of the process openings makes it possible to reduce the level of noise propagating along the process opening axis. The difference in sound levels makes tens of dBA. The noise that propagates on both sides of the additional straight barrier or on one side of the L-shaped barrier has a pronounced beam-like directivity. A conclusion has been drawn based on the accomplished calculations that the location of additional barriers in front of process openings should be selected individually for each GCP building depending on the process opening width and depending on the location with respect to apartment block areas.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
