Abstract
In this paper, the enhancement of water evaporation rate by applying electric field inside a smooth channel has been numerically investigated. Present study focuses on the comparison of the EHD parameters (the water evaporation rate enhancement factor and Coefficient of Performance of EHD) of new configurations with the conventional one. New configurations comprise the variation of the wire electrode longitudinal position as well as the addition of a wall-mounted electrode as a secondary receiving electrode to the conventional configuration. The results were firstly validated by computational error analysis. After validation, the numerical simulations are carried out for the determination of the optimal values of the wire electrode position and the wall-mounted electrode length. The results show the water evaporation enhancement of 28 and 74% for the cases with the optimal wire electrode position and the optimal wall-mounted electrode length over the conventional configuration, respectively. Also, the new case with the optimal wall-mounted electrode length is determined as the best design, due to the improvement in Coefficient of Performance of EHD (about 24%) compared with the new case with the optimal wire electrode position.
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