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IIR document

Prediction model of the average size of aggregate in nano-refrigerant.

Number: pap. n. 217

Author(s) : LIN L., PENG H., DING G.

Summary

Nanoparticles form aggregates in nano-refrigerant. The average size of aggregate has significant effect on the heat transfer performance of nano-refrigerant. The objective of this study is to propose a model for predicting the average size of aggregate in nano-refrigerant. The average size of aggregate in nano-refrigerant depends on the coupled aggregation-sedimentation process. This process was simulated by two sub-models, i.e., the single particle motion sub-model and the particle-particle interaction sub-model. In the computing procedure, the cell-linked list (CLL) method was introduced to speed up scanning particle pairs in order to save computation time, and the constant-number method was adopted to eliminate the negative effect of aggregation on the computation accuracy. The prediction values were compared with the experimental data, and good agreement was obtained.

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Pages: 8 p.

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Details

  • Original title: Prediction model of the average size of aggregate in nano-refrigerant.
  • Record ID : 30015837
  • Languages: English
  • Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
  • Publication date: 2015/08/16
  • DOI: http://dx.doi.org/10.18462/iir.icr.2015.0217

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