ZT Merit Numbers of Thermo-Electric Pipe (TEP) Device for TIO2 Nanofluids
In light of the current technological advancements, there is a compelling need to develop specialized and highly efficient devices that effectively mitigate excessive heat generation and augment their thermal capacity. This study presented a derivation of the ZT merit number to calculate a more accurate value for thermoelectric devices, in this instance a thermoelectric pipe (TEP) uses TiO2 nanoparticles in a water-based (at different concentrations) which can dissipate heat and generate electricity through the thermal -electrochemical effect of the nanofluids. To derive the ZT merit number equation we employed intelligent dimensional analysis alongside thermoelectric experiments and evaluated at different temperature and pressure ranges from 25 °C and 100 °C and between 400 to 760 torr. The results revealed that the TEP's titanium dioxide (TiO2) nanofluid with 0.2 wt.% sodium hydroxide (NaOH) was found to be having a better thermoelectric performance. Furthermore, the highest ZT value was found at the thermal conductivity and power densities of 203.1 W/(m•K) and 21.16 W/m3, respectively.
Keywords - Nanofluid, Two-step Synthesis, Electrochemistry, Redox Reaction, Thermal performance, Thermoelectric Pipe, and Dimensional Analysis.