Category: Transient Plane Source
Author(s): Dongsheng Zhu, Nan Wang, Shandong Tu, Xianju Wang, Xin-Fang Li, Xinfang Li, Zhengdong Wang
Keywords: concentration, Copper, Cu-H2O, Cu-H2O nanofluids, Heat Transfer, nano-suspensions, Nanofluids, Nanoparticles, pH, Sodium Dodecylbenzenesulfonate (SDBS), surfactants, Thermal Conductivity, Transient plane source (TPS), Transient plane source (TPS) method, Weight Fraction
Abstract: This study investigates the effect changing the PH of a copper nanofluid and sodium dodecylbenzenesulfonate (SDBS) surfactant concentration has on the thermal conductivity of the nanofluid. The thermal conductivity was determined through the Hot Disk Transient Plane (TPS) method. As the PH is increased the thermal conductivity also increases because higher PH means more surface charges which increase conductivity. As the SDBS concentration is increased the thermal conductivity slightly increases then steadily decreases. This is because as the concentration of surfactant increases there is less area on the copper nanoparticles available for heat transfer.
Reference: ASME 2008 First International Conference on Micro/Nanoscale Heat Transfer, Parts A and B (2008) 569-573
DOI: 10.1115/MNHT2008-52271