Open AccessTheoretical Model to Investigate the Heat Transfer Mechanism through a Heat Pipe with Graphene Oxide/Distilled Water as Working Fluid
Author(s) -
Jihad Kadhim AbdAli,
Adil Abbas Alwan
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/987/1/012017
Subject(s) - condenser (optics) , heat pipe , evaporator , materials science , heat transfer , distilled water , evaporation , condensation , working fluid , thermodynamics , mechanics , composite material , heat exchanger , physics , light source , optics
This study investigates heat transfer through a heat pipe by analysing the evaporation and condensation of working fluid (distilled water) in two parts of the heat pipe to find the phase change phenomenon. A computational methodology was developed to simulate the phase change processes and a thermal model was simulated to determine the spatial and temporal temperature profile of the heat pipe and phase change location. The velocity and location of the phase change in the evaporator and condenser sections of the pipe were calculated at each stage, as was the temperature across the domain. The thermal efficiency of the heat pipe was improved by adding graphene oxide nanoparticles at an increase of 15%. When nanoparticles were added to the distilled water, the time of the phase change phenomenon was reduced in the evaporator and condenser sections. The capillary property was enhanced when nanoparticles were deposited in the wall of the evaporator’s wick structure. The temperature distribution of the phase change phenomenon was evaluated via the evaporation and condensation processes and the location of the interface line in the two main parts of the heat pipe.