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An integrated workflow for addressing performance, dynamics/NVH and tribological issues in scroll compressors.

Number: 1526

Author(s) : KANDASAMY S., AIHARA R., KERIBAR R., AFSHARI A., WANG Z., MA C., SONG D.

Summary

Durability, NVH, sealing and tribological (friction, wear) aspects of scroll compressor design have been receiving increased attention during development, owing to their growing prevalence in some residential, commercial and automotive HVAC applications. These have been historically addressed either by testing, or more recently, through multi-dimensional CAE (3D FEA and CFD). Both approaches are time-consuming and expensive. As typically applied, detailed 3D analyses are one-off, performed “manually”, involve multiple CAE tools and models used by various experts. Their use in a design optimization process is cumbersome. This paper presents a more practical and automated workflow that integrates such detailed analyses with performance simulation of scroll compressors within a single CAE tool. The methodology combines a flexible-body, multi-body dynamic analysis of moving parts of the scroll compressor, including details of contacts and sealing, along with models of oil film hydrodynamics of journal and thrust bearings, with an established and proven thermodynamic simulation of the gas compression process using fast 1D-flow techniques. The workflow is significantly faster than that of the existing methods, is much richer in the breadth of its predictions, and at the same time its automated nature means fewer manual steps and reduced requirement for expertise. The paper describes the methodology used in the workflow and presents an array of predictions.

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  • Original title: An integrated workflow for addressing performance, dynamics/NVH and tribological issues in scroll compressors.
  • Record ID : 30033631
  • Languages: English
  • Subject: Technology
  • Source: 2024 Purdue Conferences. 27th International Compressor Engineering Conference at Purdue.
  • Publication date: 2024/07/18

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