Evaluation of Experimental Artifacts in the Evaporation of Droplets on Fibers

  • Asrardel, Mohamad (Universidad de Zaragoza)
  • Poonawala, Taha (Universidad de Zaragoza)
  • Muelas, Álvaro (Universidad de Zaragoza)
  • Ballester, Javier (Universidad de Zaragoza)

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In light of the potential impact of undesired experimental artifacts in the evaporation of isolated droplets suspended on fibers, a preliminary study has been carried out using a newly-developed facility and a droplet evaporation model. The conduction of heat through the suspension fiber has been found to significantly enhance the evaporation rate, leading even to the onset of internal bubbling for some cases. The absorption of thermal radiation from the environment was found to be less relevant for this specific setup, although its impact could be much larger for cases where the droplet is exposed to hot walls. Overall, it is observed that these artifacts strongly depend on the experimental conditions applied in the tests, and therefore should be carefully considered when analyzing the results obtained under this configuration.