Title: Development and validation of a one-dimensional simulation model of a hermetic reciprocating compressor for household refrigeration

Authors: Zainal Abidin, Wolfgang Lang, Raimund A. Almbauer, Daniel Nagy, Adolf Burgstaller

Addresses: Department of Thermodynamics Analysis, AVL LIST GmbH Hans-List-PLatz 1 8020 Graz, Austria. ' Christian Doppler Laboratory for Thermodynamics of Reciprocating Engines Institute for Internal Combustion Engines and Thermodynamics, Graz University of Technology, Inffeldgasse 21 A, Graz A-8010, Austria. ' Christian Doppler Laboratory for Thermodynamics of Reciprocating Engines Institute for Internal Combustion Engines and Thermodynamics, Graz University of Technology, Inffeldgasse 21 A, Graz A-8010, Austria. ' Christian Doppler Laboratory for Thermodynamics of Reciprocating Engines Institute for Internal Combustion Engines and Thermodynamics, Graz University of Technology, Inffeldgasse 21 A, Graz A-8010, Austria. ' Christian Doppler Laboratory for Thermodynamics of Reciprocating Engines Institute for Internal Combustion Engines and Thermodynamics, Graz University of Technology, Inffeldgasse 21 A, Graz A-8010, Austria

Abstract: In a hermetic reciprocating compressor (HRC), all components inside the shell interact thermally with each other, and thus all components inside the shell must be taken into account to get a complete thermodynamic analysis of a HRC. A one-dimensional simulation provides useful results as long as the thermal boundary conditions are well known. In this work, a procedure for the development and the validation of a one-dimensional simulation model of a HRC is elaborated. A thermal network (TNW) is added to the one-dimensional simulation model to obtain the thermal boundary conditions. A zero-dimensional model is applied for the calculation of the gas inside the plenums, the junctions and the cylinder. Five experimental test cases are proposed to check the validation and the consistency of the model. Finally, the procedure is applied for a 5.6 ccm hermetic compressor for isobutane.

Keywords: hermetic reciprocating compressors; HRC; simulation; thermal networks; TNW; household refrigeration; cooling appliances; modelling; hermetic compressors; isobutane; refrigerators.

DOI: 10.1504/IJESMS.2009.031352

International Journal of Engineering Systems Modelling and Simulation, 2009 Vol.1 No.4, pp.193 - 205

Published online: 01 Feb 2010 *

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