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Bypass ejector with an annular cavity in the nozzle wall to increase the entrainment: Experimental and numerical validation

Yinhai Zhu and Peixue Jiang

Energy, 2014, vol. 68, issue C, 174-181

Abstract: A bypass ejector geometry with an annular cavity in the nozzle wall was tested for various operating conditions to evaluate the entrainment performance. The results were compared with those of a conventional ejector. The data shows that the primary mass flow rate in the bypass ejector is always about 20% less than that in the conventional ejector. The results show that the bypass ejector is better than the conventional ejector at relatively high primary and secondary flow pressures with a maximum improvement in the entrainment performance of 31.5%. The bypass ejector has better entrainment performance in the critical mode. Since most ejectors operate in the critical mode, this ejector will have many applications requiring more entrainment.

Keywords: Ejector; Bypass; Annular cavity; CFD modeling; Performance (search for similar items in EconPapers)
Date: 2014
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Citations: View citations in EconPapers (11)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:68:y:2014:i:c:p:174-181

DOI: 10.1016/j.energy.2014.02.046

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