Quiet and efficient cooling for IC-engine powered systems
2013 (English)In: 42nd International Congress and Exposition on Noise Control Engineering 2013, INTER-NOISE 2013: Noise Control for Quality of Life, OAL-Osterreichischer Arbeitsring fur Larmbekampfung , 2013, 5677-5686 p.Conference paper (Refereed)
The cooling module placed in heavy vehicles is a compact installation, consisting of several components that all affect the cooling air stream which results in complex flows. Even though the fan is considered the main source of sound, adjacent surfaces affect the flow and the scattering of the sound radiated from the fan and make it difficult to predict the acoustic source distribution and sound field inside and outside of the cooling system. This paper focus on the noise emissions caused by the flow associated with the cooling fan and the interaction with an upstream radiator. The long- Term objective of the work is to obtain an efficient and accurate simulation tool for the design of silent and efficient cooling systems, where the present work will be a viable tool in the evaluation process. A modular test rig was built that consisted of a radiator, shroud, fan and hydraulic engine mounted in a wall, which was located between an anechoic room and a reverberation room in order to control the sound level of the incoming flow. Acoustic characteristics e.g. sound pressure- And sound power levels, have been measured in both rooms and will later be used to validate future numerical simulations.
Place, publisher, year, edition, pages
OAL-Osterreichischer Arbeitsring fur Larmbekampfung , 2013. 5677-5686 p.
Fan, Flow acoustic measurements, Noise
IdentifiersURN: urn:nbn:se:kth:diva-151117ScopusID: 2-s2.0-84904512286ISBN: 978-163266267-5OAI: oai:DiVA.org:kth-151117DiVA: diva2:746793
42nd International Congress and Exposition on Noise Control Engineering 2013: Noise Control for Quality of Life, INTER-NOISE 2013, 15 September 2013 through 18 September 2013, Innsbruck, Austria
QC 201409152014-09-152014-09-152016-09-05Bibliographically approved