HEAT TRANSFER ENHANCEMENT FOR HIGH VOLTAGE APPLICATIONS COOLING USING METAL OXIDE NANOFLUIDS
Amr Mohamed Naguib Azab Abido;
Abstract
Summary:
“The high voltage applications’ cooling uses the double distilled water (DDW) as a cooling
fluid because of its low electrical conductivity. This study was performed for enhancing the
cooling of the MGC-20 Cyclotron by using the metal oxides nanofluids as a cooling fluid.
The aluminum oxide (Al2O3), copper oxide (CuO) and magnesium oxide (MgO) were used
as metal oxides nanoparticles for nanofluids synthesizing to examine the availability of
using them as cooling fluids in the MGC-20 cyclotron. The Al2O3, CuO and MgO
nanofluids were prepared with different weight concentrations of nanoparticles oxides. The
thermal conductivity (TC) of Al2O3, CuO and MgO nanofluids were increased with
temperature rising as well as with increase of the oxides concentration in the nanofluid,
where the1.2% wt. CuO nanofluid offered about 16 % increase than the DDW TC at room
temperature (RT), then the 1.2% wt. Al2O3 nanofluid thermal conductivity increased by 7%
and the 1.2% wt. MgO nanofluid increased by 3% at RT. The electrical conductivity was
measured for the all nanofluids and it increased with increase of the oxides concentration, as
well as with temperature increase. The 1.2% Al2O3 nanofluid was the most suitable
nanofluid for the high voltage applications and it was tested in a heat transfer system. The
overall heat transfer coefficients of the 1.2% Al2O3 nanofluid were greater than the double
distilled water coefficients at the different flow rates (by about 13%: 17%). So the 1.2% wt.
of Al2O3 nanofluid could be used for enhancing the cooling process in the high voltage
applications especially for the MGC-20 Cyclotron.”
Summary:
“The high voltage applications’ cooling uses the double distilled water (DDW) as a cooling
fluid because of its low electrical conductivity. This study was performed for enhancing the
cooling of the MGC-20 Cyclotron by using the metal oxides nanofluids as a cooling fluid.
The aluminum oxide (Al2O3), copper oxide (CuO) and magnesium oxide (MgO) were used
as metal oxides nanoparticles for nanofluids synthesizing to examine the availability of
using them as cooling fluids in the MGC-20 cyclotron. The Al2O3, CuO and MgO
nanofluids were prepared with different weight concentrations of nanoparticles oxides. The
thermal conductivity (TC) of Al2O3, CuO and MgO nanofluids were increased with
temperature rising as well as with increase of the oxides concentration in the nanofluid,
where the1.2% wt. CuO nanofluid offered about 16 % increase than the DDW TC at room
temperature (RT), then the 1.2% wt. Al2O3 nanofluid thermal conductivity increased by 7%
and the 1.2% wt. MgO nanofluid increased by 3% at RT. The electrical conductivity was
measured for the all nanofluids and it increased with increase of the oxides concentration, as
well as with temperature increase. The 1.2% Al2O3 nanofluid was the most suitable
nanofluid for the high voltage applications and it was tested in a heat transfer system. The
overall heat transfer coefficients of the 1.2% Al2O3 nanofluid were greater than the double
distilled water coefficients at the different flow rates (by about 13%: 17%). So the 1.2% wt.
of Al2O3 nanofluid could be used for enhancing the cooling process in the high voltage
applications especially for the MGC-20 Cyclotron.”
“The high voltage applications’ cooling uses the double distilled water (DDW) as a cooling
fluid because of its low electrical conductivity. This study was performed for enhancing the
cooling of the MGC-20 Cyclotron by using the metal oxides nanofluids as a cooling fluid.
The aluminum oxide (Al2O3), copper oxide (CuO) and magnesium oxide (MgO) were used
as metal oxides nanoparticles for nanofluids synthesizing to examine the availability of
using them as cooling fluids in the MGC-20 cyclotron. The Al2O3, CuO and MgO
nanofluids were prepared with different weight concentrations of nanoparticles oxides. The
thermal conductivity (TC) of Al2O3, CuO and MgO nanofluids were increased with
temperature rising as well as with increase of the oxides concentration in the nanofluid,
where the1.2% wt. CuO nanofluid offered about 16 % increase than the DDW TC at room
temperature (RT), then the 1.2% wt. Al2O3 nanofluid thermal conductivity increased by 7%
and the 1.2% wt. MgO nanofluid increased by 3% at RT. The electrical conductivity was
measured for the all nanofluids and it increased with increase of the oxides concentration, as
well as with temperature increase. The 1.2% Al2O3 nanofluid was the most suitable
nanofluid for the high voltage applications and it was tested in a heat transfer system. The
overall heat transfer coefficients of the 1.2% Al2O3 nanofluid were greater than the double
distilled water coefficients at the different flow rates (by about 13%: 17%). So the 1.2% wt.
of Al2O3 nanofluid could be used for enhancing the cooling process in the high voltage
applications especially for the MGC-20 Cyclotron.”
Summary:
“The high voltage applications’ cooling uses the double distilled water (DDW) as a cooling
fluid because of its low electrical conductivity. This study was performed for enhancing the
cooling of the MGC-20 Cyclotron by using the metal oxides nanofluids as a cooling fluid.
The aluminum oxide (Al2O3), copper oxide (CuO) and magnesium oxide (MgO) were used
as metal oxides nanoparticles for nanofluids synthesizing to examine the availability of
using them as cooling fluids in the MGC-20 cyclotron. The Al2O3, CuO and MgO
nanofluids were prepared with different weight concentrations of nanoparticles oxides. The
thermal conductivity (TC) of Al2O3, CuO and MgO nanofluids were increased with
temperature rising as well as with increase of the oxides concentration in the nanofluid,
where the1.2% wt. CuO nanofluid offered about 16 % increase than the DDW TC at room
temperature (RT), then the 1.2% wt. Al2O3 nanofluid thermal conductivity increased by 7%
and the 1.2% wt. MgO nanofluid increased by 3% at RT. The electrical conductivity was
measured for the all nanofluids and it increased with increase of the oxides concentration, as
well as with temperature increase. The 1.2% Al2O3 nanofluid was the most suitable
nanofluid for the high voltage applications and it was tested in a heat transfer system. The
overall heat transfer coefficients of the 1.2% Al2O3 nanofluid were greater than the double
distilled water coefficients at the different flow rates (by about 13%: 17%). So the 1.2% wt.
of Al2O3 nanofluid could be used for enhancing the cooling process in the high voltage
applications especially for the MGC-20 Cyclotron.”
Other data
| Title | HEAT TRANSFER ENHANCEMENT FOR HIGH VOLTAGE APPLICATIONS COOLING USING METAL OXIDE NANOFLUIDS | Authors | Amr Mohamed Naguib Azab Abido | Issue Date | 2018 |
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