Detail publikace

Detailed spray analysis of airblast atomization of various fuels in a reacting environment

KARDOS, R. RÁCZ, E. MALÝ, M. JEDELSKÝ, J. JÓZSA, V.

Originální název

Detailed spray analysis of airblast atomization of various fuels in a reacting environment

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Understanding spray evolution in a reacting environment is critical to designing advanced, clean combustion systems. The processes in the upstream region determine flame shape, stability, ignition characteristics, pollutant emission, and combustion efficiency. The developed spray is never achieved in combustion since the early regions feature primary and secondary atomization, while droplets evaporate as they approach the flame. Consequently, there is no thermodynamic equilibrium before the flame front. The principal goal of this paper is to provide detailed information to model developers on various sprays measured by a Phase Doppler Anemometer; the processed measurement data is available as supplementary material, while the raw data will be provided upon request. Four different fuels were tested: diesel fuel, aviation kerosene type JP-8, biodiesel, and a 50 % biodiesel-diesel blend by volume. The plain -jet airblast atomizer was tested at four atomization gauge pressures (0.3, 0.45, 0.6, 0.75 barg). Therefore, sixteen different sprays were measured along one spray diameter at each of four downstream distances of 15, 25, 35, and 45 mm, measured from the nozzle tip. The paper details the droplet size distribution, droplet axial velocity, fluctuations, and correlation between size and velocity to facilitate a comprehensive understanding of liquid fuel sprays. This latter measure helps identify the overshooting phenomenon, i.e., localizing the regions where the large droplets move faster than the gas phase.

Klíčová slova

Spray; Airblast atomizer; Phase Doppler Anemometry; Reacting; Biofuel; Evaporation

Autoři

KARDOS, R.; RÁCZ, E.; MALÝ, M.; JEDELSKÝ, J.; JÓZSA, V.

Vydáno

1. 8. 2024

Nakladatel

PERGAMON-ELSEVIER SCIENCE LTD

Místo

OXFORD

ISSN

1879-2189

Periodikum

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER

Ročník

227

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

12

Strany počet

12

URL

https://www.sciencedirect.com/science/article/pii/S001793102400379X

BibTex

@article{BUT188454,
  author="Réka Anna {Kardos} and Erika {Rácz} and Milan {Malý} and Jan {Jedelský} and Viktor {Józsa}",
  title="Detailed spray analysis of airblast atomization of various fuels in a reacting environment",
  journal="INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER",
  year="2024",
  volume="227",
  number="1",
  pages="1--12",
  doi="10.1016/j.ijheatmasstransfer.2024.125548",
  issn="1879-2189",
  url="https://www.sciencedirect.com/science/article/pii/S001793102400379X"
}