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CFD simulation and experimental study on air-side performance of MCHX.

Author(s) : TU X., LIN H., LIANG X.

Summary

The air-side heat transfer and pressure drop characteristics of micro-channel heat exchanger (MCHX) with flat-tube louver fin were investigated using both computational fluid dynamics (CFD) simulation and experiment methods. The test samples were not enough to fully investigate air-side performance, so the main aim of experimental investigation was to offer effective data to validate CFD model. The 3-dimension (3-D) CFD model was established to predict air-side flow and heat transfer characteristics. The air-side experimental data were reduced using effectiveness-NTU method. The comparison between CFD simulations and experimental data showed that established 3-D CFD model had very good prediction ability. Several important geometry configuration parameters of MCHX louver fin, involving fin pith, louver angle, louver pitch, louver length and flow depth, which have great influence on MCHX performance, have been analyzed with CFD simulation method under commonly used residential air conditioner condenser condition. The variation tendencies of air-side performance with those parameters were obtained. Based on CFD simulation results, some optional configuration parameters for flat-tube louver fin were proposed.

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Details

  • Original title: CFD simulation and experimental study on air-side performance of MCHX.
  • Record ID : 2010-1804
  • Languages: English
  • Publication date: 2010/07/12
  • Source: Source: Proc. 2010 int. Refrig. Air Cond. Conf., Purdue Univ.
    n. 2143; 8 p.; fig.; tabl.; 8 ref.

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