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International journal of refrigeration = Revbue internationale du froid v.74, 2017년, pp.528 - 539   SCI SCIE
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Nouvelle mEthodologie de caractErisation des compresseurs A spirale A injection de vapeur
New characterization methodology for vapor-injection scroll compressors

Tello-Oquendo, Fernando M. (Corresponding author. Instituto Universitario de Investigació ); Navarro-Peris, Emilio (n en Ingenierí ); Gonzá (a Energé ); lvez-Maciá (tica, Universitat Politè ); , José (cnica de Valè );
  • 초록  

    Abstract This paper presents a characterization methodology for vapor-injection scroll compressors (SCVI). An SCVI was characterized in a modified calorimetric test bench, which is able to control the intermediate pressure and the injection superheat independently. Based on the characterization results, the injection mass flow rate was correlated with the intermediate pressure through a linear expression, and a modified AHRI polynomial was proposed to estimate the compressor power input. The correlations were used in a simple model to predict the intermediate conditions of the SCVI installed in a heat pump prototype with an economizer. The deviations obtained for the evaporator mass flow rate, injection mass flow rate, intermediate pressure, and compressor power input were lower than 5% in all cases. The proposed methodology allows evaluating SCVI in a wide range of operating conditions, being only dependent on compressor characteristics and totally independent of the system in which it is installed. Highlights Vapor-injection compressors characterization independently of the injection mechanism. Testing of a vapor-injection scroll compressor in a modified calorimetric test bench. Correlation of the intermediate conditions for vapor-injection scroll compressors. Validation of characterization methodology in a heat pump prototype with economizer. Deviations below 5% in mass flow rates and the compressor power input.


  • 주제어

    Characterization .   Vapor-injection .   Scroll compressor .   Calorimetric bench .   Caractérisation .   Injection de vapeur .   Compresseur à spirale .   Banc calorimétrique.  

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