Skip to main content

CFD Analysis of Supersonic Ejectors Operating with Mixture of Gases

  • Conference paper
  • First Online:
2nd International Congress on Energy Efficiency and Energy Related Materials (ENEFM2014)

Part of the book series: Springer Proceedings in Energy ((SPE))

  • 1522 Accesses

Abstract

The purpose of this paper is to evaluate the performance of the ejector using two different streams of fluids. To investigate the ejector performance, different operating conditions were applied to ejector. The value of motive and suction pressure were considered to be constant while discharge pressure of ejector was changed continuously. Motive flow was considered to be saturated steam while Suction flow is composed of air and steam. In this mixture, the mass fraction of air and steam changed in the range of 0–1. Ejector performance curves are extracted for different mass fractions of air and steam. The resulted performance curves indicate that the variation of mass fraction of species that were present in the suction flow mixture had significant effect on the performance of ejector. Results showed that as the mass fraction of air in suction flow was increased, the ejector entertainment ratio was increased as well. Also can observed that the variation of mass fraction of suction flow don’t have significant effect on break point of ejector performance curves.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 169.00
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Hardcover Book
USD 219.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

References

  1. D.W. Sun, I.W. Eames, Recent developments in the design theories and applications of ejectors—a review. J. Inst. Energy 68, 65–79 (1995)

    Google Scholar 

  2. N. Sharifi, M. Boroomand, An investigation of thermo-compressor design by analysis and experiment: part 1 validation of the numerical method. Energy Convers. Manag. 69, 217–227 (2013)

    Article  Google Scholar 

  3. J.H. Keenan, E.P. Neumann, A simple air ejector. J. Appl. Mech., Trans. ASME 64, A75–A81 (1942)

    Google Scholar 

  4. K.R. Hedges, P.G. Hill, Compressible flow ejectors Part I —development of a finite-difference flow model. J. Fluids Eng., Trans. ASME 96, 272–281 (1974)

    Article  Google Scholar 

  5. T. Sriveerakul, S. Aphornratana, K. Chunnanond, Performance prediction of steam ejector using computational fluid dynamics: part 1, validation of the CFD results. Int. J. Therm. Sci. 46, 812–822 (2007)

    Google Scholar 

  6. A. Hemidi, F. Henry, S. Leclaire, J.M. Seynhaeve, Y. Bartosiewicz, CFD analysis of a supersonic air ejector. Part I: experimental validation of single phase and two-phase operation, applied thermal engineering 29, 1523–1531 (2009)

    Google Scholar 

  7. X. Yang, X. Long, X. Yao, Numerical investigation on the mixing process in a steam ejector with different nozzle structures. Int. J. Therm. Sci. 56, 95–106 (2012)

    Article  Google Scholar 

  8. X. Chen, S. Omer, M. Worall, S. Riffat, Recent developments in ejector refrigeration technologies. Renew. Sustain. Energy Rev. 19, 629–651 (2013)

    Google Scholar 

  9. K. Pianthong, W. Sheehanam, M. Behnia, T. Sriveerakul, S. Aphornratana, Investigation and improvement of ejector refrigeration system using computational fluid dynamics technique. Energy Convers. Manag. 48, 2556–2564 (2007)

    Article  Google Scholar 

  10. J.M. Cardemil, S. Colle, A general model for evaluation of vapor ejectors performance for application in refrigeration. Energy Convers. Manag. 64, 79–86 (2012)

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Maziar Shafaee .

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2015 Springer International Publishing Switzerland

About this paper

Cite this paper

Shafaee, M., Tavakol, M., Riazi, R. (2015). CFD Analysis of Supersonic Ejectors Operating with Mixture of Gases. In: Oral, A., Bahsi Oral, Z., Ozer, M. (eds) 2nd International Congress on Energy Efficiency and Energy Related Materials (ENEFM2014). Springer Proceedings in Energy. Springer, Cham. https://doi.org/10.1007/978-3-319-16901-9_21

Download citation

  • DOI: https://doi.org/10.1007/978-3-319-16901-9_21

  • Published:

  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-16900-2

  • Online ISBN: 978-3-319-16901-9

  • eBook Packages: EnergyEnergy (R0)

Publish with us

Policies and ethics