Enhanced Thermal Characteristics of NG Based Acetamide Composites
Apurv Yadav1, Abhishek Verma2, P.K. Bhatnagar3, V.K. Jain4, Vivek Kumar5

1Apurv Yadav, Amity Institute of Renewable and Alternate Energy (AIRAE), Amity University, Noida, India.
2Abhishek Verma, AIRAE and Amity Institute for Advanced Research and Studies (Materials & Devices) [AIARS (M&D], Amity University, Noida, India.
3P.K. Bhatnagar, Department of Electronic Science, Delhi University, New Delhi, India.
4V.K. Jain, AIARS (M&D) and AIRAE, Amity University, Noida, India.
5Vivek Kumar, AIARS (M&D) and AIRAE, Amity University, Noida, India.

Manuscript received on 01 August 2019 | Revised Manuscript received on 05 August 2019 | Manuscript published on 30 August 2019 | PP: 4227-4231 | Volume-8 Issue-10, August 2019 | Retrieval Number: J99440881019/19©BEIESP | DOI: 10.35940/ijitee.J9944.0881019
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: Fatty acids are a distinguished category of phase change materials (PCM). However, their inferior thermal conductivity value restricts their potential for thermal energy storage system. Carbonaceous nanomaterials have emerged as promising thermal conductivity enhancer materials for organic PCMs. The present study focuses on preparing a novel PCM nanocomposite comprising of small amount of nanographite (NG) in molten acetamide, an organic PCM, for elevation of the thermal characteristics and examining the trend of the nanocomposite through the course of charging / discharging process. These PCM-nanocomposites are prepared by dispersing NG in molten acetamide with weight fractions of 0.1, 0.2, 0.3, 0.4 and 0.5 %. The scanning electronic microscopic (SEM) analysis was conducted for the characterization of PCM nanocomposite. The energy storage behaviour of the prepared nanocomposites were analyzed with the help of differential scanning calorimeter instruments, which showed that there is no observable variation in the melting point of the nanocomposite, and a decline in the latent heat values. Furthermore, thermal conductivity trend of the nanocomposites caused by NG addition was investigated, which indicated enhancement of thermal conductivity with increasing NG concentration. Further, nanocomposites with a 0.4 wt. % of NG, displayed appreciable increase in rate of heat transfer, reducing melting time and solidification time by 48 and 47 %, respectively. The prepared PCM nanocomposites displayed superior heat transfer trend, permitting substantial thermal energy storage.
Index Terms: Acetamide, Energy Storage, Heat Transfer, Nanographite, Phase Change Material.

Scope of the Article: Thermal Engineering