Hybrid solar parabolic dish power plant and high‐temperature phase change material energy storage system

2019 ◽  
Vol 43 (10) ◽  
pp. 5405-5420 ◽  
Author(s):  
Mehdi Mehrpooya ◽  
Bahram Ghorbani ◽  
Milad Sadeghzadeh
Keyword(s):  
High Temperature ◽  
Energy Storage ◽  
Power Plant ◽  
Storage System ◽  
Energy Storage System ◽  
High Temperature Phase ◽  
Temperature Phase ◽  
Parabolic Dish ◽  
Material Energy ◽  
Change Material

Thermal Analysis of a High-Temperature Heat Pipe-Assisted Thermal Energy Storage System With Nano-Enhanced Phase Change Material

2018 ◽  
Author(s):  
Saeed Tiari ◽  
Mahboobe Mahdavi ◽  
Viren Thakore ◽  
Stacy Joseph
Keyword(s):  
High Temperature ◽  
Energy Storage ◽  
Aluminum Oxide ◽  
Thermal Energy ◽  
Storage System ◽  
Heat Pipes ◽  
Energy Storage System ◽  
Storage Unit ◽  
Thermal Energy Storage System ◽  
Change Material

In this study, the thermal characteristics of a high-temperature latent heat thermal energy storage system assisted by highly conductive nanoparticles and finned heat pipes are investigated numerically. A transient two-dimensional model is developed using the commercial CFD package of ANSYS-FLUENT18.2 to analyze the thermal performance of the storage unit during the charging process. Copper oxide (CuO) and aluminum oxide (Al2O3) are the nanoparticles introduced to enhance the thermal conductivity of the phase change material (PCM) which is potassium nitrate (KNO3) with melting temperature of 335°C. The effects of different types and volume fractions of nanoparticles, as well as the quantities of embedded heat pipes have been studied. The results revealed that increasing the volume fraction of nanoparticles leads to the increase of the melting rate and input heat flux of the system. It was also found that the dispersion of aluminum oxide in the PCM provides a faster charging process in comparison to the case with copper oxide nanoparticles. In addition, the results showed that the quantity of heat pipes has a significant impact on the thermal performance of the storage unit.

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