Effect of titania‐silver nanocomposite particle concentration and thermal cycling on characteristics of sodium dodecyl sulfate added paraffin wax thermal energy storage material

Abstract

The present work focuses on analyzing the thermal properties of 0.5, 1 and 1.5 wt% of titania‐silver nanocomposite particles dispersed paraffin wax (NCDPW) PCM without and with sodium dodecyl sulfate (SDS) surfactant for both non‐cycled and thermal cycled samples. NCDPW without and with SDS was prepared using electromagnetic stirring and ultrasonication process. 1 wt% titania‐silver NCDPW with SDS in the mass ratio of 1:0.25 (NCP:SDS) is identified as optimum with an enhancement in thermal conductivity of 66.59%, better thermal decomposition stability upto 372°C, good physical interaction between nanocomposite particles (NCP) and paraffin wax (PW). Also, an enhancement in thermal storage efficiency (97.15%), reduction in onset melting time (35.50%) and onset freezing time (29.23%) compared to PW even after several thermal cycling process is achieved. Further, it showed a reduction in melting onset temperature to 59.2°C, an enhancement in melting heat capacity potential by 7.2% and freezing heat capacity potential by 7.7% after thermal cycling process. On the whole, the thermal properties of the base PW are increased due to the addition of titania‐silver NCP with SDS proving it, a promising energy storage medium for thermal energy storage.

Phase Change Material Nanocomposites for Thermal Energy Storage Applications

“…The nanocomposite's thermal conductivity improved to 0.347 W/mK. Bose and Amirtham [8] prepared silver-titania nanomaterial with spherical morphology. Silver nanoparticles were prepared from the AgNO 3 solution in the presence of TiO 2 nanoparticle dispersion.…”

Advancement in Energy Storage by Paraffin

“…The gotten arrangement is then separated, was dried at temperatures differ from 90 to 100°C for 12 hours and then dried to fine phase. Titania-silver NCP is delivered with the means are too represented in Figure 4 [7].…”

“…In this strategy, an insoluble monomer contained in the dissolvable gets scattered consistently by the method for mechanical mixing in the response medium which contains a specific emulsifier and surfactant [9]. Preparation of nanocomposite particles [7].…”