|Table of Contents|

Research on the Influence of Water Evaporation Rate Under the Action of Electric Field(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2025年01期
Page:
1-5148
Research Field:
特约稿
Publishing date:

Info

Title:
Research on the Influence of Water Evaporation Rate Under the Action of Electric Field
Author(s):
Luo Xiao; Shang Yongzhi; Liu Wei; Lu Ping; Liu Chenhan
(Advanced Thermal Management Technology and Functional Materials Laboratory,School of Energy and Mechanical Engineering,Nanjing Normal University,Nanjing 210023,China)
Keywords:
water evaporation rate; photomolecular effect; gradient electric field; molecular dynamics
PACS:
TK121
DOI:
10.3969/j.issn.1001-4616.2025.01.001
Abstract:
The theory of photomolecular effect states that photons form a gradient electric field at the liquid gas evaporation interface,and the generated electric field force breaks the hydrogen bonds between water molecule clusters,promoting the water evaporation rate to exceed the theoretical evaporation limit. In order to verify the photomolecular effect,this paper uses molecular dynamics methods to study the water evaporation characteristics under the action of an external gradient electric field. The simulation results of liquid gas equilibrium state show that the thickness of the evaporation zone in liquid gas mixture increases with temperature. Self evaporation simulation shows that the evaporation rate varies nonlinearly with the increase of temperature. When the temperature approaches the boiling point,the evaporation rate increases faster. Under the action of an electric field,the rate of water evaporation is significantly increased,and with the increase of temperature,the effect of gradient electric field on the rate of water evaporation is significantly weakened.

References:

[1]TAO P,NI G,SONG C,et al. Solar-driven interfacial evaporation[J]. Nature energy,2018,3(12):1031-1041.
[2]TU Y,CHEN G. Photomolecular effect:visible light absorption at water-vapor interface[J/OL]. arXiv Preprint arXiv:2202.10646,2022.
[3]TU Y,ZHOU J,LIN S,et al. Photomolecular effect leading to water evaporation exceeding thermal limit[J/OL]. arXiv Preprint arXiv:2201.10385,2022.
[4]LEIMKUHLER B,MATTHEWS C. Molecular dynamics[J]. Interdisciplinary applied mathematics,2015,39:443.
[5]ERCOLESSI F. A molecular dynamics primer[R]. Spring college in computational physics. Trieste:ICTP,1997.
[6]YANG T,PAN C. Molecular dynamics simulation of a thin water layer evaporation and evaporation coefficient[J]. International journal of heat and mass transfer,2005,48(17):3516-3526.
[7]KOBAYASHI K,HORI K,KON M,et al. Molecular dynamics study on evaporation and reflection of monatomic molecules to construct kinetic boundary condition in vapor-liquid equilibria[J]. Heat and mass transfer,2016,52:1851-1859.
[8]SKARBALIUS G,DIUGYS A,MISIULIS E,et al. Molecular dynamics study on water evaporation/condensation parameters[J]. Microfluidics and nanofluidics,2021,25(10):81.
[9]LI X,LI J,LU J,et al. Enhancement of interfacial solar vapor generation by environmental energy[J]. Joule,2018,2(7):1331-1338.
[10]ZHANG X,PENG Y,SHI L,et al. Highly efficient solar evaporator based on a hydrophobic association hydrogel[J]. ACS sustainable chemistry & engineering,2020,8(49):18114-18125.
[11]CHEN G. On the molecular picture and interfacial temperature discontinuity during evaporation and condensation[J]. International journal of heat and mass transfer,2022,191:122845.

Memo

Memo:
-
Last Update: 2025-02-15