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CFD analysis of low pressure screw compressor: using two refrigerants (HFO 1234yf and R123).

Author(s) : ADHIKARY P., DAS R., MANGARAJ A. K., et al.

Summary

There are many limitations to key-frame re-meshing. This study investigates a new technique (key-frame remeshing) that supplies pre-generated unstructured grids to the CFD solver at different time steps with lowpressure refrigerants (HFO 1234yf and R123). Customized grid generation of twin screw machines for CFD analysis is widely used by the refrigeration and air-conditioning industry today but is currently not suitable for topologies such as those of single screw, variable pitch or tri screw rotors. We know there are many limitations to key-frame re-meshing. It requires time consuming pre-processing, has limited applicability to complex meshes and leads to inaccuracies in conservation of calculated variables. It was concluded that customized tools for generation of CFD grids are required for complex twin screw machines.

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Pages: 4

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Details

  • Original title: CFD analysis of low pressure screw compressor: using two refrigerants (HFO 1234yf and R123).
  • Record ID : 30024781
  • Languages: English
  • Source: Proceedings of the International Conference on Emerging Technologies for Sustainable and Intelligent HVAC&R Systems, Kolkata, July 27-28 2018.
  • Publication date: 2018/07/27

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