Design of an environment controlled dew tracking setup to emphasize the role of the relative humidity on breath figures dynamics - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue EPJ Techniques and Instrumentation Année : 2018

Design of an environment controlled dew tracking setup to emphasize the role of the relative humidity on breath figures dynamics

Résumé

In polymer protection pieces, polycarbonate is often used for its transparency and its high impact resistance. However, when dew appears it degrades light transmission and thus transparency. To solve this problem, anti-fogging surfaces are developed.To further understand the dew formation in natural environment in order to design high efficiency anti-fogging surfaces on polycarbonate, a recently designed dew tracking setup giving dew pictures and a digital imaging procedure allowing reliable and highly accurate droplet measurements were developed. Thanks to this setup, dew formation conditions such as relative humidity level and air temperature can be chosen and studied. Particular attention is paid to the evolution of the number of droplets according to the relative humidity and how it explains the droplet growth rate. The influence of the relative humidity (RH) on the growth rate of non-coalescing dropwise condensation has already been observed. This paper is based on these existing results as a comparison to validate the experimental setup and the post-processing analysis. We shall also use the number of droplets to further explain the role of the RH on condensation dynamics.Moreover, by applying a light subcooling, the growth kinetics were slowed down in order to observe every characteristic phase in detail and even particular intermediate phases.
Fichier principal
Vignette du fichier
s40485-018-0043-3.pdf (1.78 Mo) Télécharger le fichier
Origine Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-01737197 , version 1 (13-12-2023)

Identifiants

Citer

Nicolas Pionnier, Solmaz Boroomandi Barati, Elise Contraires, Rémi Berger, Matthieu Guibert, et al.. Design of an environment controlled dew tracking setup to emphasize the role of the relative humidity on breath figures dynamics. EPJ Techniques and Instrumentation, 2018, pp.5. ⟨10.1140/epjti/s40485-018-0043-3⟩. ⟨hal-01737197⟩
194 Consultations
8 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More