Authors :
Soud Mohammed alhajri; Esam Faleh Esam Alajmi
Volume/Issue :
Volume 6 - 2021, Issue 7 - July
Google Scholar :
http://bitly.ws/gu88
Scribd :
https://bit.ly/2Z5YWTI
Abstract :
The paper aims to study and evaluate the
porous flow to determine the effect of these media on the
behaviour of the heat exchanger. The digital method
(CFD) was used to achieve this goal. The simulated
procedure was using ANSYS software. The obtained
results show that there is a great tendency to add porous
medium to heat exchangers to increase heat transfer
efficiency. This case was studied by pressure, velocity,
and wall shear stress of heat exchangers. Also, when a
porous material was placed in the pipe, the pressure
values were affected, the pressure values differed along
the length of the pipe, and its value was observed to
decrease through the porous medium, the reason for this
is that the wall of the porous area resists the flow, which
works to reduce the liquid near the wall and from it, the
force acting on it decreases. As the number of pores
increases, the pressure value decreases. The velocity
decreases through the porous media, this is due to the
nature of the pores as they act as an obstacle in front of
the liquid particles and collide with them. This collision
leads to a loss of some momentum and the speed
decreases due to the stability of the volume. Finally, the
pressure gradients increase due to the porous media
during the heat exchange. There will be seepage from the
pipe if a pressure dispenser is placed or pressure relief is
used.
Keywords :
CFD, ANSYS, Heat Exchanger, Porous media, Heat Transfer Efficiency ,Velocity, Pressure, Porous Flow, Wall Shear Stress
The paper aims to study and evaluate the
porous flow to determine the effect of these media on the
behaviour of the heat exchanger. The digital method
(CFD) was used to achieve this goal. The simulated
procedure was using ANSYS software. The obtained
results show that there is a great tendency to add porous
medium to heat exchangers to increase heat transfer
efficiency. This case was studied by pressure, velocity,
and wall shear stress of heat exchangers. Also, when a
porous material was placed in the pipe, the pressure
values were affected, the pressure values differed along
the length of the pipe, and its value was observed to
decrease through the porous medium, the reason for this
is that the wall of the porous area resists the flow, which
works to reduce the liquid near the wall and from it, the
force acting on it decreases. As the number of pores
increases, the pressure value decreases. The velocity
decreases through the porous media, this is due to the
nature of the pores as they act as an obstacle in front of
the liquid particles and collide with them. This collision
leads to a loss of some momentum and the speed
decreases due to the stability of the volume. Finally, the
pressure gradients increase due to the porous media
during the heat exchange. There will be seepage from the
pipe if a pressure dispenser is placed or pressure relief is
used.
Keywords :
CFD, ANSYS, Heat Exchanger, Porous media, Heat Transfer Efficiency ,Velocity, Pressure, Porous Flow, Wall Shear Stress
