Performance Improvement of Energy Storage System with nano-additivesin HTF

Frontiers in Automobile and Mechanical Engineering

Beemkumar, N.^1 ; Karthikeyan, A.^1 ; Saravanakumar, B.^1 ; Jayaprabakar, J.^1

School of Mechanical Engineering, Sathyabama University, Chennai, India^1

关键词: Discharging process;    Energy storage systems;    Heat transfer rate;    High thermal conductivity;    Performance improvements;    Recovering energy;    Thermal energy storage systems;    Thermal Performance;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/197/1/012036/pdf
DOI  :  10.1088/1757-899X/197/1/012036

来源: IOP

【 摘 要 】

This paper is intended to improve the heat transfer rate of thermal energy storage system with copper oxide (CuO) as nano-additivesin heat transfer fluid (HTF) by varying encapsulation materials. The experimentation is done with different encapsulating materials like copper, brass and aluminium. The results are analysed for their thermal performance characteristics during charging and discharging processes. D-Sorbitol and therminol-66 with CuO is used as PCM and HTF respectively. A comparison was made between the different encapsulations and it was found that copper encapsulation has higher efficient, storing and recovering energy. However, its high thermal conductivity promotes larger heat losses and its cost is also high on other side. So the economical use of encapsulation material is aluminium compared to other two materials.