Enrichment of methane concentration via separation of gases using vortex tubes

Manohar R. Kulkarni*, Chetan R. Sardesai

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


Separation of methane and nitrogen from a mixture was investigated using a fixed geometry vortex tube. The inlet pressure was identified as the most dominant factor affecting separative power of a vortex tube of fixed geometry. Temperature separation was easily observed in a vortex tube, even by merely touching the hot and cold exits. The results show that there is a partial gas separation leading to a higher concentration of methane at one exit in comparison to the inlet and a lower concentration at the other exit.

Original languageEnglish (US)
Pages (from-to)1-12
Number of pages12
JournalJournal of Energy Engineering
Issue number1
StatePublished - Apr 1 2002


  • Methane
  • Separation techniques
  • Tubes
  • Vortices

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Energy Engineering and Power Technology
  • Waste Management and Disposal


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