Acoustic Intensity Mapping at a Natural Gas Compression Station
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1 Acoustic Intensity Mapping at a Natural Gas Compression Station Dr. Eng. Silviu Emil IONESCU 1, Dr. Eng. Valentin SILIVESTRU 1, Dr. Eng. Adina Cristina IONESCU 1, Dr. Eng. Ilie LAŢA 2, Eng. Ioan RUSU 2, Eng. Adrian OSTROVEANU 2, Eng. Dragos COSTEA 2 1 The Romanian Research and Development Institute for Gas Turbines COMOTI 2 The National Gas Transmission Company TRANSGAZ SA Medias Content Case study description Acoustic measurements plan Conclusions and future action plans to reduce the noise 1
2 Case study description outlet inlet compressor Images with the Turbo-Compressor Power Plant for Natural Gas Transportation outlet outlet 2
3 Acoustic measurements plan SPL measurement Noise analysis at different operating conditions N1 Gas Turbine Engine Speed N1 [rpm] Measurement surfaces Acoustic intensity mapping over a measured grid according to ISO 9614 with Acoustic Intensity Probe 3
4 Acoustic measurements plan Noise analysis at different operating conditions dba N1 [rpm] N2 [rpm] N1 Gas Turbine Engine Speed N2 Centrifugal Compressor Speed 4
5 Important frequency domain at different operating conditions Acoustic analysis results 2007 N1 [rpm] N2 [rpm] F1x [Hz] F2x [Hz] Acoustic analysis results 2009 N1 [rpm] N2 [rpm] F1x [Hz] F2x [Hz] Acoustic analysis results 2011 N1 [rpm] N2 [rpm] F1x [Hz] F2x [Hz] [ID=68] Average G2 - Recording - Noise Hz;(dB(A)[2.000e-05 Pa], RMS) Important frequency domain
6 Acoustic measurements plan Noise analysis at different operating conditions [ID=137] Average G _MIC1 - R [ID=141] Average G _MIC1 - R [ID=145] Average G _MIC1 - R Ec* Ec* Ec* Comparative FFT analysis at different operating conditions Ec* 6
7 Acoustic intensity mapping over a measured grid according to ISO 9614 with Acoustic Intensity Probe Measurement surfaces 7
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![Conclusions and future action plans to reduce the noise Resonant frequency domain [ID=85] G3 rezonanta_acc3 - Recording - Vibration](/docs-images/94/119389731/images/24-0.jpg "Hz; (m/s², RMS 04.05e+00 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.")
24 Conclusions and future action plans to reduce the noise Resonant frequency domain [ID=85] G3 rezonanta_acc3 - Recording - Vibration Hz; (m/s², RMS 04.05e
25 Conclusions and future action plans to reduce the noise Action plans to reduce the noise Reduce the noise on the propagation path Reduce the noise at source Acoustic treatments for the outlet pipeline Modify the outlet pipeline resonance by changing the structure and thickness Introduce resonant cavities solutions to actively attenuate system frequencies which potentially can amplify the noise on the outlet pipeline Fundamental and applicative research for customized solutions based on acoustic absorption or insulation materials Fundamental and Applicative Research for System Redesign Solutions implementation to reduce the noise 25
26 Thank you for your attention! 26
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