Computational and Experimental Investigation of using an Extractor in the Vertical Gravitational Flash Tank Separator

  • R. A. Mahmood School of Mechanical and Electrical Engineering, University of Southern Queensland 487-535 West Street, Toowoomba Qld 4350, Australia
  • D. Buttsworth School of Mechanical and Electrical Engineering, University of Southern Queensland 487-535 West Street, Toowoomba Qld 4350, Australia
  • R. Malpress School of Mechanical and Electrical Engineering, University of Southern Queensland 487-535 West Street, Toowoomba Qld 4350, Australia
Keywords: Vertical flash tank, CFD, liquid separator, two-phase flow, liquid separation enhancements

Abstract

The vertical gravitational flash tank separator can be used to increase the performance of a refrigeration cycle. Using the vertical gravitational flash tank separator improves the effective area and enhances the heat transfer coefficient inside the evaporator. However, the vertical gravitational flash tank separator still needs further investigation to improve its performance. This paper provides an investigation study to demonstrate the improvement of separation efficiency using an extractor inside the vertical gravitational flash tank separator. Computational Fluid Dynamic (CFD) was used to assess the optimum configuration and dimension of the extractor. A series of experiments were performed to test and confirm the proposed CFD configuration of the extractor design. The results revealed that the extractor had increased the separation efficiency by 2 %.  The CFD simulations gave a good agreement with the experiments; however, all the simulations underestimated the liquid separation efficiency by approximately 0.02 over the range of conditions tested.

Published
2019-07-04
How to Cite
Mahmood, R. A., Buttsworth, D., & Malpress, R. (2019). Computational and Experimental Investigation of using an Extractor in the Vertical Gravitational Flash Tank Separator. International Journal of Automotive and Mechanical Engineering, 16(2), 6706-6722. https://doi.org/10.15282/ijame.16.2.2019.18.0505
Section
Articles