Akademik Veri Yönetim Sistemi
JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS, cilt.16, ss.1-10, 2023 (SCI-Expanded)
We experimentally investigated the evaporation characteristics of a sessile water droplet on
a glass substrate with different surface roughness levels. The influence of five parameters is
evaluated for the evaporation process: substrate temperature (30 °C, 45 °C, and 60 °C),
surface roughness (P0, P600, and P60), droplet volume (3, 5, and 8 µL), water droplets
initial temperature (30 °C, 40 °C, and 60 °C), and inclination angle (0 deg, 45 deg, and
75 deg) of the glass substrate. The Taguchi orthogonal array design of L27 is utilized to
establish minimal candidate trial points for experimental works, and more trials have
been conducted to quantify the effects accurately. Then, analysis of variance (ANOVA)
has been used to evaluate the evaporation times for the sessile droplets. The results indicate
that evaporation times decrease with rising substrate temperatures, increasing substrate
inclination angle, and increasing initial water droplet temperatures. In contrast, evaporation times rise with increasing surface roughness and droplet volumes. After evaluation of
the ANOVA analysis, surface roughness levels and droplet volumes are considered the most
influential parameters after substrate temperatures, which is the most effective parameter
on the evaporation times. On the other hand, initial water droplet temperatures and substrate inclination angle are less effective considering droplet evaporation times. A linear
regression fit was derived via ANOVA analysis for the evaporation time, and the best
mean deviation was found to be 10% from the experiments. The experimental outcomes
were compared to previous research, and correlations were derived. The proposed correlation has given good results considering experimental and literature data