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Numerical Comparison of Operating Conditions and Nozzle Geometry on Injector Performance

[+] Author Affiliations
Kun Zhang

Dalian University of Technology, Dalian, Liaoning, ChinaDalian Ocean University, Dalian, Liaoning, China

Bo Zhang, Xu Xiang

Dalian University of Technology, Dalian, Liaoning, China

Yong Yang

Wenzhou Special Equipment Inspection Center, Wenzhou, Zhejiang, China

Paper No. HT2013-17207, pp. V004T13A003; 4 pages
doi:10.1115/HT2013-17207
From:
  • ASME 2013 Heat Transfer Summer Conference collocated with the ASME 2013 7th International Conference on Energy Sustainability and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology
  • Volume 4: Heat and Mass Transfer Under Extreme Conditions; Environmental Heat Transfer; Computational Heat Transfer; Visualization of Heat Transfer; Heat Transfer Education and Future Directions in Heat Transfer; Nuclear Energy
  • Minneapolis, Minnesota, USA, July 14–19, 2013
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 978-0-7918-5550-8
  • Copyright © 2013 by ASME

abstract

A model was established to discuss the effect of operating parameters and nozzle shapes on the performance of injectors. The comparison pointed out that heat load has worst effect on injector geometries, while little effect on area ratio. On the other hand, the area ratio is very sensitive to suction temperature, which is critical to injector performance. The least energy loss is achieved when nozzle converges gently at the same nozzle entrance and exit diameter.

Copyright © 2013 by ASME
Topics: Ejectors , Nozzles , Geometry

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