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Comparison of the performance of propane (R290) and propene (R1270) as alternative refrigerants for cooling during expansion in a helical capillary tube: A CFD-based insight investigation.

Author(s) : KUMAR JENA S., BOSE S., DAS PATLE S.

Type of article: IJR article

Summary

The current research compared the efficiency of the new generation refrigerants, propane (R290) and propene (R1270), for cooling applications. The refrigerants’ flow and phase change properties in a helical capillary tube are simulated using ANSYS Fluent 2021 R2 CFD software. For this virtual experiment, a helical capillary tube with an inner diameter of 1.2 mm and a total length of 2100 mm is used. The flashing phenomenon, in which the refrigerants undergo a phase change, is simulated using a finite volume-based mixture model. The Zwart–Gerber–Belamri model is utilized to estimate mass transfer during flashing, which adheres to a homogeneous equilibrium strategy. A set of user-defined functions (UDF) are created to access the refrigerant properties and implement the cavitation model. Bilinear interpolation is used to calculate the fluid’s characteristics at a particular cell pressure and temperature. Available numerical and experimental results are used to verify the constructed numerical model. The investigation shows that under the same operating conditions, R290 refrigerant maintains a higher mass flow through the helical capillary tube than R1270 . R1270 produces a lower temperature vapour-liquid mixture at the exit of the capillary tube in comparison to . CFD simulations have generated information and data that are helpful in choosing proper refrigerants for different purposes.

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Pages: 300-313

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Details

  • Original title: Comparison of the performance of propane (R290) and propene (R1270) as alternative refrigerants for cooling during expansion in a helical capillary tube: A CFD-based insight investigation.
  • Record ID : 30030910
  • Languages: English
  • Subject: HFCs alternatives
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 146
  • Publication date: 2023/02
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2022.11.009

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