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Prediction of normal boiling point and critical temperature of refrigerants by graph neural network and transfer learning.

Author(s) : WANG G., HU P.

Type of article: IJR article

Summary

Normal boiling point () and critical temperature () are two major thermodynamic properties of refrigerants. In this study, a dataset with 742 data points for and 166 data points for was collected from references, and then prediction models of and for refrigerants were established by graph neural network and transfer learning. Graph neural network is applied to correlate the and of refrigerants with their corresponding molecular structure, while transfer learning is used to further improve the prediction accuracy on . Compared with the data in references, the average absolute deviation for is 1.20%, and for , it is reduced from 1.91% to 1.05% with the help of transfer learning, which is lower than the group contribution methods. The results indicate that the graph neural network is a powerful approach to estimating refrigerant properties, and transfer learning can improve the prediction accuracy for the case of insufficient training data.

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Pages: 97-104

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Details

  • Original title: Prediction of normal boiling point and critical temperature of refrigerants by graph neural network and transfer learning.
  • Record ID : 30031762
  • Languages: English
  • Subject: Technology
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 151
  • Publication date: 2023/07
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2023.04.006

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