and Au coating thicknesses mixed in water to make a GNSblended
nanofluid. It can significantly enhance the solar collector
efficiency up to 70% with 0.05% particle volume fraction.
Ladjevardi et al. [23] investigated the applications of nanofluids
in direct absorptions of solar radiation in volumetric solar collector.
The results show that by using graphite nanofluids
(0.000025 vol%) can absorb more than 50% of incident irradiation
energy, and just about 0.0045 $/L increase in cost. Nathan Hordy
et al. [24] investigated the optical characterization of the
MWCNTs nanofluids, the results show that are highly absorbing
over the majority of the solar spectrum, allowing for about 100%
solar energy absorption.
As mentioned above studies, there are only a few research
committed to the conventional solar collectors. The main purpose
of this study is to discuss the feasibility for nanofluids
apply to flat-plate solar collector. In this experiment, CueH2O
nanofluids were prepared, and its thermal conductivities with
different nanoparticle mass fraction and size were tested. The
optimum concentration of nanofluids was chosed as the working
fluids. The efficiency of flat-plate solar collectors with
nanofluids under various particle size and mass fraction were
investigated.
และ and Au coating thicknesses mixed in water to make a GNSblended
ของไหลนาโน nanofluid. It can significantly enhance the solar collector
efficiency up to 70% with 0.05% particle volume fraction.
Ladjevardi et al. [23] investigated the applications of nanofluids
in direct absorptions of solar radiation in volumetric solar collector.
The results show that by using graphite nanofluids
(0.000025 vol%) can absorb more than 50% of incident irradiation
energy, and just about 0.0045 $/L increase in cost. Nathan Hordy
et al. [24] investigated the optical characterization of the
MWCNTs nanofluids, the results show that are highly absorbing
over the majority of the solar spectrum, allowing for about 100%
solar energy absorption.
As mentioned above studies, there are only a few research
committed to the conventional solar collectors. The main purpose
of this study is to discuss the feasibility for nanofluids
apply to flat-plate solar collector. In this experiment, CueH2O
nanofluids were prepared, and its thermal conductivities with
different nanoparticle mass fraction and size were tested. The
optimum concentration of nanofluids was chosed as the working
fluids. The efficiency of flat-plate solar collectors with
nanofluids under various particle size and mass fraction were
investigated.
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