Increasing the thermal conductivity of an organic phase change material, all the while maintaining a high phase change enthalpy, is a difficult task. In this study, researchers took 1-tetradecanol/Ag nanowires composites, containing various wt% of Ag nanowires, and tested their thermal conductivities and phase change enthalpies. The results suggest the PCM composite containing 62.73 wt% of Ag nanowires is the most promising candidate for thermal conductivity enhancement of organic phase ...
Author(s): D. Yang L. Sun, J. Zeng, L. Zhang, Z. Cao
In this paper, researchers investigated the effects of multi-walled carbon nanotubes (MWNTs), on the thermal conductivity and phase change enthalpy of palmitic acid (PA), a solid to liquid phase change material. The research concluded that as the concentration of MWNTs is increased, the thermal conductivity of the composite increases, compared to that of PA alone. Also in this study, researchers investigated the effects of various MWNTs surface modifications, on the ...
Author(s): D. W. Yang, F. Xu, J. L. Zeng, L. X. SUn, L. Zhang, X. F. Zhang, Z. Cao
In this article, the transient plane source technique was used to determine the effect of iron, a flame retardant shape-stabilized phase change material (FSPCM), on the thermal conductivity of a sample of paraffin/high-density polyethylene (HDPE). With the results, it was determined that iron could be dispersed within the HDPE and paraffin samples, so as to improve the flame retardant efficiency. The results also concluded that the thermal conductivity of ...
Author(s): H. Lu, J. Wang, L. Song, P. Zhang, Q. Liu, Y. Hu
To maximize the energy efficiency of a building, and to minimize its carbon footprint, novel insulants have been extensively studied. Novel insulants such as phase change materials (PCMs) and hemp-lime insulation are proven to have extremely low thermal conductance. However, because these insulants are novel, they unfortunately have not been tested for fire safety. The purpose of this study was to create a fire framework to enable researchers to test ...
Author(s): M. S. McLaggan
This research proposed a new, flame retardant, shape-stabilized phase change material (PCM), for use in thermal energy storage. Typical paraffin and high-density polyethylene has great shape retention, however is highly flammable and has a low thermal conductivity. Researchers introduced expanded graphite and an intumescent flame retardant to the mix to improve the thermal properties and flammability, respectively. After several tests, including a thermal conductivity evaluation, on multiple variations of the ...
Author(s): J. Ni, J. Wang, L. Song, P. Zhang, W. Xing, Y. Hu
