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 ...
Author(s): Dongsheng Zhu, Nan Wang, Shandong Tu, Xianju Wang, Xin-Fang Li, Xinfang Li, Zhengdong Wang
This study was conducted to determine if highly expanded open cell polycarbonate foams (PC) could be used as thermal insulation among other characteristics of the foam. This was accomplished through testing the PC foam with the Transient Plane Source (TPS) method. Multiple relative densities of foam were tested, and it was found that the higher the relative density the higher the thermal conductivity, and vice versa. The lower the relative ...
Author(s): Aboutaleb Ameli, Chul B. Park, Davoud Jahani, Hani E. Naguib, Mehdi Saniei, Weidan Ding
Thermoelectric (TE) generators have very important applications, such as emerging automotive waste heat recovery and cooling applications. This study investigates how thermal conductivity, seebeck coefficient, and resistivity of bismuth telluride changes with increasing isothermal aging. The thermal conductivity was tested with the Transient Plane Source (TPS) method. Both bismuth telluride n and p type were tested for 2 wk, 8 wk, 6 mo, 1 yr, and 2 yr of isothermal aging at 240 degrees Celsius. The ...
Author(s): Josh Whaley, Karla R. Reyes-Gil, Nancy Yang, Ryan Nishimoto
This study investigates the properties of a material to be used as an energy storage medium that can use energy stored from the summer months, and then release it during the winter. The proposed material uses a graphite foam, with ZnO coatings with a flower like morphology, to house a sugar alcohol phase change material (PCM). The thermal conductivity of the material was measured using a transient plane source (TPS) ...
Author(s): Adrian Mihail Motoc, Alain Celzard, Elena Palomo del Barrio, Ioan Albert Tudor, Mirela Petriceanu, Prasanta Jana, Radu Robert Piticescu, Vanessa Fierro, Viorel Badilita
This article investigates the effect of aluminum doping on the thermal conductivity and other thermoelectric properties of nanostructured Zn1•XAlXTe (0 ≤ X ≤ 0.15) for a temperature range of 300 K – 600 K. The thermal conductivity was measured using the transient plane source (TPS) technique by a thermal constants analyzer. It was found that with increasing doping of aluminum, the thermal conductivity decreased, and with increasing temperature thermal conductivity also decreased. The decreasing of thermal ...
Author(s): Ankam Bhaskar, Chia-Jyi Liu, Ching-Lin Chang, Wei-Ming Wu, Yi-Hsuan Pai
