0
Research Papers: Flows in Complex Systems

Experimental Studies on the Effect of Suction Chamber Angle on the Entrainment of Passive Fluid in a Steam Ejector

[+] Author and Article Information
A. S. Ramesh

Department of Mechanical Engineering,
St. Xavier's Catholic College of Engineering,
Nagercoil 629003, Tamil Nadu, India

S. Joseph Sekhar

Department of Mechanical Engineering,
St. Xavier's Catholic College of Engineering,
Nagercoil 629003, Tamil Nadu, India
e-mail: josephsekhar@hotmail.com

1Corresponding author.

Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received March 24, 2017; final manuscript received August 10, 2017; published online October 4, 2017. Assoc. Editor: Moran Wang.

J. Fluids Eng 140(1), 011106 (Oct 04, 2017) (8 pages) Paper No: FE-17-1180; doi: 10.1115/1.4037692 History: Received March 24, 2017; Revised August 10, 2017

In this experimental study, the impact of suction chamber angle (SCA) on the entrainment ratio of a steam ejector refrigeration system (ERS) of 700 W was investigated. The basic dimensions of the ejector were derived from the compressible fluid flow equations using matlab. The system was tested with six different SCAs with various operating conditions, and its performance was analyzed. It is inferred that the entrainment of passive fluid from the evaporator is the strong function of the SCA. For all the active steam pressures, the entrainment of the passive fluid increases up to 12 deg of SCA, and above that the performance decreases significantly. Optimum angle of suction chamber increases the entrainment ratio for at least 49.96%. It is also found that the SCA has a minor influence on the back pressure.

FIGURES IN THIS ARTICLE
<>
Copyright © 2018 by ASME
Your Session has timed out. Please sign back in to continue.

References

Cizungu, K. , Mani, A. , and Groll, M. , 2001, “ Performance Comparison of Vapour Jet Refrigeration System With Environment Friendly Working Fluids,” Appl. Therm. Eng., 21(5), pp. 585–598. [CrossRef]
Saji Raveendran, P. , and Joseph Sekhar, S. , 2017, “ Performance Studies on a Domestic Refrigerators Retrofitted With Building-Integrated Water-Cooled Condenser,” Energy Build., 134, pp. 1–10. [CrossRef]
Rusly, E. , Aye, L. , Charters, W. W. S. , and Ooi, A. , 2005, “ CFD Analysis of Ejector in a Combined Ejector Cooling System,” Int. J. Refrig., 28(7), pp. 1092–1101. [CrossRef]
Eames, I . W. , Aphornratana, S. , and Haider, H. , 1995, “ A Theoretical and Experimental Study of a Small-Scale Steam Jet Refrigerator,” Int. J. Refrig., 18(6), pp. 378–386. [CrossRef]
Varga, S. , Oliveiraa, A. C. , and Diaconu, B. , 2009, “ Influence of Geometrical Factors on Steam Ejector Performance a Numerical Assessment,” Int. J. Refrig., 32(7), pp. 1694–1701. [CrossRef]
Sun, D. W. , 1997, “ Experimental Investigation of the Performance Characteristics of a Steam Jet Refrigeration System,” Energy Sources, 19(4), pp. 349–367. [CrossRef]
Sherif, S. Y. , Goswami, D. Y. , Mathur, G. D. , Iyer, S. V. , Davanagere, B. S. , Natarajan, S. , and Colacino, F. , 1998, “ A Feasibility Study of Steam-Jet Refrigeration,” Int. J. Energy Res., 22(15), pp. 1323–1336. http://onlinelibrary.wiley.com/doi/10.1002/(SICI)1099-114X(199812)22:15%3C1323::AID-ER430%3E3.0.CO;2-W/abstract
Chang, Y. , and Chen, Y. , 2000, “ Enhancement of a Steam-Jet Refrigerator Using a Novel Application of the Petal Nozzle,” Exp. Therm. Fluid Sci., 22(3–4), pp. 203–211. [CrossRef]
Chunnanond, K. , and Aphornratana, S. , 2004, “ An Experimental Investigation of a Steam Ejector Refrigerator: The Analysis of the Pressure Profile Along the Ejector,” Appl. Therm. Eng., 24(2–3), pp. 311–322. [CrossRef]
Selvaraju, A. , and Mani, A. , 2006, “ Experimental Investigation on R134a Vapour Ejector Refrigeration System,” Int. J. Refrig., 29(7), pp. 1160–1166. [CrossRef]
Jia, Y. , and Wenjian, C. , 2011, “ Area Ratio Effects to the Performance of Air-Cooled Ejector Refrigeration Cycle With R134a Refrigerant,” Energy Convers. Manage., 53(1), pp. 240–246. [CrossRef]
Khennich, M. , Galanis, N. , and Sorin, M. , 2016, “ Effects of Design Conditions and Irreversibilities on the Dimensions of Ejectors in Refrigeration Systems,” Appl. Energy, 179, pp. 1020–1031. [CrossRef]
Zhu, Y. , Cai, W. , Wen, C. , and Li, Y. , 2009, “ Numerical Investigation of Geometry Parameters for Design of High Performance Ejectors,” Appl. Therm. Eng., 29(5–6), pp. 898–905. [CrossRef]
Keenan, H. , Neumann, E. P. , and Lustwerk, F. , 1950, “ An Investigation of Ejector Design by Analysis and Experiment,” ASME J. Appl. Mech., 72, pp. 299–309. http://www.greenloco.com/GreenLoco%20Historical%20Reference/04)%20An%20Investigation%20of%20Ejector%20Design%20by%20Analysis%20and%20Experiment/slides/AI01.html
Duttan, J. C. , and Carroll, B. F. , 1986, “ Optimal Supersonic Ejector Designs,” ASME J. Fluids Eng., 108(4), pp. 414–420 [CrossRef]
Munday, J. T. , and Bagster, D. F. , 1977, “ A New Ejector Theory Applied to Steam Jet Refrigeration,” Ind. Eng. Chem. Process Des. Dev., 16(4), pp. 442–449. [CrossRef]
Huang, B. J. , Chang, J. M. , Wang, C. P. , and Petrenko, V . A. , 1999, “ A 1-D Analysis of Ejector Performance,” Int. J. Refrig., 22(5), pp. 354–364. [CrossRef]
Aphornratana, S. , and Eames, I . W. , 1997, “ A Small Capacity Steam-Ejector Refrigerator: Experimental Investigation of a System Using Ejector With Movable Primary Nozzle,” Int. J. Refrig., 20(5), pp. 352–355. [CrossRef]
Zhang, B. , Song, X. , Lv, J. , and Zuo, J. , 2012, “ Study on the Key Ejector Structures of the Waste Heat-Driven Ejector Air Conditioning System With R236fa as Working Fluid,” Energy Build., 49, pp. 209–215. [CrossRef]
Pianthong, K. , Seehanam, W. , Behnia, M. , Sriveerakul, T. , and Aphornratana, S. , 2007, “ Investigation and Improvement of Ejector Refrigeration System Using Computational Fluid Dynamics Technique,” Energy Convers. Manage., 48(9), pp. 2556–2564. [CrossRef]
Yadav, R. L. , and Patwardhan, A. W. , 2008, “ Design Aspects of Ejectors: Effects of Suction Chamber Geometry,” Chem. Eng. Sci., 63(15), pp. 3886–3897. [CrossRef]
ASHRAE, 1983, “ Steam Jet Refrigeration Equipment,” Equipment Handbook, ASHRAE, Atlanta, GA, Chap. 13.
ESDU, 1985, “ Ejector and Jet Pump,” ESDU International Ltd., London, UK, Data Item 86030.
Mellanby, A. L. , 1922, “ Some Phenomenon Associated With the Flow of Steam Through Nozzles,” Trans. Inst. Chem. Eng., 12(55), pp. 544–567.
Watson, F. R. B. , 1933, “ The Production of a Vacuum in an Air Tank by Means of a Steam Jet,” Proc. Inst. Mech. Eng., 124(1), pp. 231–238. [CrossRef]
Chen, W. , Chong, D. , Yan, J. , and Liu, J. , 2011, “ Numerical Optimization on the Geometrical Factors of Natural Gas Ejectors,” Int. J. Therm. Sci., 50(8), pp. 1554–1561. [CrossRef]
Ramesh, A. S. , and Joseph Sekhar, S. , 2017, “ Analytical and Numerical Studies of a Steam Ejector on the Effect of Nozzle Exit Position and Suction Chamber Angle to Fluid Flow and System Performance,” J. Appl. Fluid Mech., 10(1), pp. 369–378. [CrossRef]
Kim, S. , and Kwon, S. , 2006, “ Experimental Determination of Geometric Parameters for an Annular Injection Type Supersonic Ejector,” ASME J. Fluids Eng., 128(6), pp. 1164–1171. [CrossRef]
Sankarlal, T. , and Mani, A. , 2005, “ Experimental Studies on an Ammonia Ejector Refrigeration System,” Int. Commun. Heat Mass Transfer, 33(2), pp. 224–230. [CrossRef]
McLinden, M. O. , Klein, S. A. , Lemmon, E. W. , and Peskin, A. P. , 1998, “ NIST Standard Reference Database 23: NIST Thermodynamics and Transport Properties of Refrigerants and Refrigerant Mixtures, REFPROP, Version 9.1,” The National Institute of Standards and Technology, Gaithersburg, MD.
Bartosiewicz, Y. , Aidoun, Z. , Desevaux, P. , and Mercadier, Y. , 2005, “ Numerical and Experimental Investigations on Supersonic Ejectors,” Int. J. Heat Fluid Flow, 26(1), pp. 56–70. [CrossRef]
Cengal, Y. A. , and Cimbala, J. M. , 2010, Fluid Mechanics Fundamentals and Applications, 3rd ed., McGraw-Hill, New York.
Ruangtrakoon, N. , Aphornratana, S. , and Sriveerakul, T. , 2011, “ Experimental Studies of a Steam Jet Refrigeration Cycle: Effect of the Primary Nozzle Geometries to System Performance,” Exp. Therm. Fluid Sci., 35(4), pp. 676–683. [CrossRef]
El-dessouky, H. , Ettouney, H. , Alatiqi, I. , and Al-nuwaibit, G. , 2002, “ Evaluation of Steam Jet Ejectors,” Chem. Eng. Process., 41(6), pp. 551–561. [CrossRef]
Holman, J. P. , 2000, “ Experimental Methods for Engineers,” 7th ed., McGraw-Hill, New York.

Figures

Grahic Jump Location
Fig. 1

Schema of the steam jet refrigeration system

Grahic Jump Location
Fig. 2

Schema of the ejector and its pressure and velocity profile. (a) schema of the ejector and (b) pressure and velocity profile along the ejector.

Grahic Jump Location
Fig. 3

Flowchart to predict the basic geometrical parameters of the ejector

Grahic Jump Location
Fig. 4

Schema of the experimental ERS

Grahic Jump Location
Fig. 5

Ejectors fabricated for various SCAs

Grahic Jump Location
Fig. 6

Effect of SCA on entrainment ratio for various active fluid pressures

Grahic Jump Location
Fig. 7

Performance curves for boiler pressures 1.6 bar and 2 bar

Grahic Jump Location
Fig. 8

Performance curves for boiler pressures 3 bar and 3.5 bar

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In