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Investigation on cooling efficiency of a 3D-printed integrated inter cooler applicable to a miniature multi-stage compressor.

Author(s) : DENG Y., MIAO N., LIU Y., et al.

Type of article: Article, IJR article

Summary

Inter cooler plays an extremely importance role in improving the volumetric efficiency and isentropic efficiency of multi-stage compressor. For a miniature multi-stage compressor with compact and lightweight structure, conventional inter coolers such as winding copper or stainless steel tubes are incompetent due to their relatively large dimension. A 3D-printed integrated inter cooler with complex channels and compact size is proposed. Selective laser melting process technology is applied due to its high molding precision. A numerical investigation on the cooling efficiency of the inter cooler is carried out. A comprehensive comparison of the overall cooling efficiency is conducted and optimal parameters are obtained for cooling down the inter-stage gas as much as possible. It turns out that sufficient cooling can be obtained when the coolant flow through the inter cooler with a flow rate above 0.2?L/min. Temperature of coolant influences the outlet gas temperature of all stages most significantly.

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Pages: 295-306

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Details

  • Original title: Investigation on cooling efficiency of a 3D-printed integrated inter cooler applicable to a miniature multi-stage compressor.
  • Record ID : 30025637
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 100
  • Publication date: 2019/04
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2019.02.012

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