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Proceedings Paper

Development of a rational design procedure for a pressure recovery system for HPCL
Author(s): Sehoon Kim; Jungkun Jin; Hyuckmo Kwon; Sejin Kwon
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Paper Abstract

From the geometric parameter study, an optimal ejector design procedure of pressure recovery system for chemical lasers was acquired. For given primary flow reservoir conditions, an up-scaled ejector was designed and manufactured. In the performance test, secondary mass flow rate of 200g/s air was entrained satisfying the design secondary pressure, 40 ~ 50torr. Performance validation of a supersonic ejector system along with an investigation of effects of supersonic diffuser was conducted. Placement of the diffuser at the secondary inlet further reduced diffuser upstream pressure to 7torr. Lastly, the duplicate of apparatus (air 100 g/s secondary mass flow rate each) was built and connected in parallel to assess proportionality behavior on a system to handle larger mass flow rate. Test and comparison of the parallel unit demonstrated the secondary mass flow rate was proportional to the number of individual units that were brought together maintaining the lasing pressure.

Paper Details

Date Published: 23 March 2005
PDF: 6 pages
Proc. SPIE 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (23 March 2005); doi: 10.1117/12.610987
Show Author Affiliations
Sehoon Kim, Korea Advanced Institute of Science and Technology (South Korea)
Jungkun Jin, Korea Advanced Institute of Science and Technology (South Korea)
Hyuckmo Kwon, Korea Advanced Institute of Science and Technology (South Korea)
Sejin Kwon, Korea Advanced Institute of Science and Technology (South Korea)


Published in SPIE Proceedings Vol. 5777:
XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Jarmila Kodymova, Editor(s)

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