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 article
http://dx.doi.org/10.3384/ecp17132605Published in: Proceedings of the 12th International Modelica Conference, Prague, Czech Republic, May 15-17, 2017
Linköping Electronic Conference Proceedings 132:67, p. 605-612
Published: 2017-07-04
ISBN: 978-91-7685-575-1
ISSN: 1650-3686 (print), 1650-3740 (online)
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.
M. J. Crocker, editor. Handbook of Noise and Vibration Control. Wiley, New Jersey, 2007.
IEC 61672-1. Electroacoustics - Sound level meters - Part 1: Specifications ( International Electrotechnical Commission Standard No. 61672-1). Onlline on: https://webstore.iec.ch/publication/5708, last visited: 2017-03-07, 2003.
M. Möser. Technische Akustik. Springer-Verlag, Berlin Heidelberg, 9th edition, 2012. doi: https://doi.org/10.1007/978-3-642-30933-5.
Travis E. Oliphant. Guide to NumPy. Provo, UT, March 2006. URL http://www.tramy.us/.
TLK-Thermo GmbH. TIL suite and TIL media: Commercial library for steady-state and transient simulation of thermodynamic systems such as heat pump,refrigeration, a/c, cooling and Rankine systems. Onlline on: https://www.tlkthermo.com/, last visited: 2017-01-22.
