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Critical temperature for nanoparticle cloud formation during combustion of single micron-sized iron particle

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Abstract

Temporally, spatially, and thermally resolved measurements of in situ nanoparticle cloud formation during combustion of single micron-sized iron particles are carried out. The critical particle temperature for the cloud formation is identified using high-speed and high-magnification shadowgraphy, recording the evolution of a nanoparticle cloud, synchronized with two-color pyrometry probing the surface temperature of the burning micron particle. The finding could serve as an important criterion to minimize nanoparticle generation in the flame of iron-particle suspensions, making iron powders a cleaner and more recyclable fuel.

Original languageEnglish
Article number112296
Number of pages6
JournalCombustion and Flame
Volume244
DOIs
Publication statusPublished - Oct 2022

Bibliographical note

Funding Information:
Akmal Irfan Majid is acknowledged for assistance to EDS measurement. This research has received funding from Opzuid (stimulus) Grant agreement no. PROJ-02594.

Funding

Akmal Irfan Majid is acknowledged for assistance to EDS measurement. This research has received funding from Opzuid (stimulus) Grant agreement no. PROJ-02594.

Keywords

  • Iron combustion
  • Metal fuel
  • Nanoparticle formation
  • Particle temperature
  • Shadowgraphy

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