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Title:
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Compressible 1D-3D simulation of a muffler with pseudosound prediction levels
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Author:
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López Mas, Joan; Ruano Pérez, Jesús; Lehmkuhl Barba, Oriol; Rigola Serrano, Joaquim; Oliva Llena, Asensio
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics; Universitat Politècnica de Catalunya. CTTC - Centre Tecnològic de la Transferència de Calor |
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Abstract:
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Numerical software for the simulation of thermal and fluid-dynamic behavior of hermetic reciprocating compressors is a must for its understanding and improvement. Hence, these tools are widely used to improve compressor performance in terms of COP. However there is a trade of between COP increase and noise
levels produced by the compressor. The work is focused on numerical prediction of noise generation due to the fluid flow phenomena, with special attention to pressure perturbations. Because the suction muffler is a key-point in noise reduction, this element is numerically studied using two modeling approaches, first through compressible CFD and second through simplified one-dimensional models. The obtained numerical data is post-processed in order to obtain the characteristic frequency charts of the muffler geometry setup working under the compressor boundary conditions. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
-Compressors
-Compressors -- Simulació numèrica |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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Published by:
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International Institute of Refrigeration
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