Table 1

Solar thermal nanofluid comparison table

Type

Graphite

Al

Copper

Silver

Gold


Particle, vol.%

0.0004

0.001

0.004

0.004

0.004

Commercially available

Yes

Yes

Yes

Yes

Yes

Surfactant, vol.%

0.5

0.25

0.25

0.25

0.25

1M NaOH, vol.% (achieve pH 9 to 10)

0.003

0.003

0.003

0.003

0.003

Sonication time, min

45

30

30

30

30

Collector depth, cm

10

10

10

10

10

Approximate cost, $/L

0.52

0.64

1.85

3.65

233


Assumes pure water base - where water + stabilizers = $0.5/L).

Taylor et al. Nanoscale Research Letters 2011 6:225   doi:10.1186/1556-276X-6-225

Open Data