Fig. 4From: Experimental Research on Stability and Natural Convection of TiO2-Water Nanofluid in Enclosures with Different Rotation AnglesTransmittance of TiO2-water nanofluid. Transmittance (τ) changes of TiO2-water nanofluid (wt% = 0.5%) under different pH values with times (h) at different doses (m) of dispersant agent. a m = 5 wt%. b m = 6 wt%. c m = 7 wt%. d m = 8 wt%Back to article page