A Comparative Study of Swirl and Non-swirl Feed Injectors: Performance Analysis and Insights

Deepak Kumar, Abhishek Verma, Abhijit Kushari, Hemant Mishra, Pramod Kumar

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This research centers on an experimental exploration of the atomization performance of both swirl and non-swirl twin-fluid injectors, with an emphasis on enhanced atomization at higher liquid flow rates. In these injectors’ design, atomization is achieved by introducing a substantial volume of air onto a liquid jet within the injector. In the context of swirl-type injectors, the air is introduced through tangential holes into an annular passage, fostering a dynamic interplay. Measurements of size and velocity are meticulously obtained using a precise 2-D Phase Doppler Particle Analyzer system. A significant finding emerged that the Sauter mean diameter of droplets is comparatively lower in the swirl injector in contrast to the non-swirl injector, attributed to the integration of tangential momentum. Meanwhile, the mean droplet velocity remains consistently stable for both injector types. The results suggest that the swirl injector exhibits comparable better atomization characteristics to the non-swirl injector, even when faced with the limitations of a constrained spray angle.

Original languageEnglish
Title of host publicationProceedings of Fluid Mechanics and Fluid Power (FMFP) 2023, Vol. 4 - Fluid Power
EditorsHardik Kothadia, Rajneesh Bhardwaj, Jaywant H. Arakeri
PublisherSpringer Science and Business Media Deutschland GmbH
Pages555-568
Number of pages14
ISBN (Print)9789819773879
DOIs
StatePublished - 2025
Externally publishedYes
Event10th International and 50th National Conference on Fluid Mechanics and Fluid Power, FMFP 2023 - Jodhpur, India
Duration: 20 Dec 202322 Dec 2023

Publication series

NameLecture Notes in Mechanical Engineering
ISSN (Print)2195-4356
ISSN (Electronic)2195-4364

Conference

Conference10th International and 50th National Conference on Fluid Mechanics and Fluid Power, FMFP 2023
Country/TerritoryIndia
CityJodhpur
Period20/12/2322/12/23

Bibliographical note

Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

Keywords

  • Air blast
  • Atomization
  • Fluidized bed catalytic cracking
  • Swirl injector
  • Two-phase flow

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