USE OF CuO NANO-MATERIAL FOR THE IMPROVEMENT OF THERMAL CONDUCTIVITY AND PERFORMANCE OF LOW TEMPERATURE ENERGY STORAGE SYSTEM OF SOLAR POND

作者：Karunamurthy K^*; Murugumohankumar K; Suresh S

来源：Digest Journal of Nanomaterials and Biostructures, 2012, 7(4): 1833-1841.

• Solar Pond
• Low Temperature Energy Storage System
• Nanomaterials
• Phase Change Materials
• Thermal Energy Storage

Solar Ponds collects the solar energy and the collected solar energy will be carried by a flowing fluid. Low Temperature Energy Storage System (LTES) stores the thermal energy from solar pond and increases the period of operation of the solar pond. In this paper, the solar energy collected by the simulated solar pond was stored in a LTES and the medium adopted was paraffin phase change material (PCM). PCM is preferred because of its higher storage density, with less volume. However the disadvantage of PCM for using as LTES is its poor thermal conductivity and requires more time period and more surface area for charging and discharging of thermal energy. To overcome this problem, an attempt was made by dispersing CuO nano particles within the PCM. The thermal conductivity of LTES is determined both analytically and experimentally. From the experimental investigation carried out, it was observed that, the thermal conductivity of PCM and the charging and discharging time of LTES has also been reduced significantly by introducing CuO nano-particles.

• 出版日期2012-12