Comparison between thermal conductivity enhancements reported in literature review and result of this Decanoylcarnitine work related to vol.% = 1.Author(s)NanofluidConcentrationNanoparticle size (nm)EnhancementThis workAg/WEG501% volumetric40–5037%Chon et al. Alumina/water4% volumetric5030%Timofeeva et al. Alumina/water5% volumetric4010%Teng et al. Alumina/water2% by weight2014.7Beck et al. Alumina/water4% volumetric1223%Yang et al. Graphite/oil2% by weight20–4029%Utomo et al. Titania/water4% volumetric50–605%Utomo et al. Alumina/water4% volumetric20–3010%Zhang et al. Copper/ethyleneglycol5% volumetric3311.5%Xie et al. SiC/water4.2% volumetric2515.9%Rezazadeh et al. Ag/water1% volumetric20–4029%Lee et al. Alumina/water3.5% volumetric20–5012%Full-size tableTable optionsView in workspaceDownload as CSV
According to Table 5, the biologically-produced nanofluid at vol.% = 1 has relatively higher thermal conductivity rather than other nanofluid, even in comparison with two-step Ag/water nanofluid . According to Table 5, carpels can be stated that, other nanofluids at volumetric concentration higher than 1% have lower thermal conductivity enhancement comparing to the results of this work at vol.% = 1. For instance, Timofeeva et al.  has reported the thermal conductivity enhancement of about 10% for alumina/water at vol.% = 5, while result of this work shows that thermal conductivity can be enhanced up to 37% at vol.% = 1. This is an evidence that Ag/WEG50 biologically-produced nanofluid can have potential applications in heat transfer media due to its relatively higher thermal conductivity.