Spray Formation in the Multi-Hole Nozzle of Twin-Fluid Atomizers

Authors

  • Amir Khalid Automotive and Combustion Synergies Technology Group, Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Pagoh Higher Education Hub, 84600 Pagoh, Muar, Johor, Malaysia
  • Shahrin Hisham Amirnordin Combustion Research Group (CRG), Centre for Energy and Industrial Environment Studies (CEIES), Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, Malaysia
  • Uthayakumar Vasuthavan Combustion Research Group (CRG), Centre for Energy and Industrial Environment Studies (CEIES), Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, Malaysia
  • Azian Hariri Combustion Research Group (CRG), Centre for Energy and Industrial Environment Studies (CEIES), Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, Malaysia
  • Mas Fawzi Combustion Research Group (CRG), Centre for Energy and Industrial Environment Studies (CEIES), Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, Malaysia

Keywords:

internal mixing twin-fluid atomizer, multi-circular jet plate, open area ratio, breakup length, air-fuel mixing

Abstract

The atomization of internal-mixing twin-fluid atomizers is highly dependent on the internal geometry of the mixing chamber. Many studies have been conducted on the air entrance geometry influencing the air-fuel mixing. This paper aims to determine the effects of a multi-circular jet (MCJ) plate on the spray formation of twin-fluid atomizers. Plates 1, 2 and 3 with different open area ratios were used in the experiments. A swirler was used for comparison. The spray images were captured at different equivalence ratios using a direct photography method. ImageJ software was used to analyse the breakup length of spray formation. Results corroborate that, as the open area ratio of an MCJ plate increases, the break-up length decreases. The opening area for primary air entrance into the mixing chamber contributes to the airfuel mixing, thereby affecting the spray performance of twin-fluid atomizers.

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Published

2020-12-14

How to Cite

Khalid, A. ., Amirnordin, S. H. ., Vasuthavan, U. ., Hariri, A. ., & Fawzi, M. . (2020). Spray Formation in the Multi-Hole Nozzle of Twin-Fluid Atomizers. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 53(1), 75–81. Retrieved from https://www.akademiabaru.com/submit/index.php/arfmts/article/view/2410

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