Conference article

Sound Source Extension Library for Modelica

Johann Emhofer
Center for Energy, AIT Austrian Institute of Technology, Giefinggass 2, 1210 Wien, Austria

Raimund Zitzenbacher
Center for Energy, AIT Austrian Institute of Technology, Giefinggass 2, 1210 Wien, Austria

Christoph Reichl
Center for Energy, AIT Austrian Institute of Technology, Giefinggass 2, 1210 Wien, Austria

Download articlehttp://dx.doi.org/10.3384/ecp17132605

Published in: Proceedings of the 12th International Modelica Conference, Prague, Czech Republic, May 15-17, 2017

Linköping Electronic Conference Proceedings 132:67, p. 605-612

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Published: 2017-07-04

ISBN: 978-91-7685-575-1

ISSN: 1650-3686 (print), 1650-3740 (online)

Abstract

Transient thermodynamic models in Modelica are widely used for energetic simulations of machines and systems which are located nearby people. Nevertheless, so far no libraries exist which consider the noise of such machines in the simulations. The Sound Source Extension library (SSElib) proposed in this work, should close this gap. With the aid of the SSElib, acoustic characteristics can be added to existing Modelica models (e.g. to a compressor model). The acoustic characteristic added to the existing model is frequency dependent in the one-octave band and could be further depend on an input parameter like the rotational speed of a compressor. With the inclusion of sound sources into energetic models, the sound behavior of machines can be considered and control strategies can be optimized to lower the noise of machines.

Keywords

Modelica, sound, noise, acoustics, heat pump

References

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