Numerical Simulation & Experimental Research of Heat Charging Process of Cylindrical Units with PCM of Al-Si Alloy

2010 ◽  
Vol 171-172 ◽  
pp. 223-228
Author(s):  
Guan Sheng Chen ◽  
Ren Yuan Zhang ◽  
Feng Li ◽  
Shi Dong Li ◽  
Li Zhang
Keyword(s):  
Energy Storage ◽  
Phase Change ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Thermal Power ◽  
Test System ◽  
Solar Thermal ◽  
Experimental Result ◽  
Solar Thermal Energy ◽  
Storage Unit

Phase change thermal storage used metal as phase change material (PCM) is an important mode of solar thermal energy storage. In this paper, the heat charging processes of solar heating units were simulated under three kinds of heating flux 100,150 and 200kW/m2 at the bottom face respectively, while the thickness of heat receiving layer at the bottom was in 5, 10 and 15mm. Al-Si alloy was selected as PCM used in the cylindrical body of the units which were in the size of φ1000×1000mm. The change of temperature and solid-liquid phase change interface of Al-Si alloy were analyzed to find out the suitable absorber thickness of thermal energy storage units which can run safety under the condition of temperature 700~900K and heat flux 100~200kW/m2, such as the application of solar thermal energy storage unit in high temperature solar thermal power stations. In the last a test system was built up and the experimental result was close to the simulation value of a unit in the size of φ300×1000×10mm.

A review of nanomaterial incorporated phase change materials for solar thermal energy storage

Solar Energy ◽  
2021 ◽  
Author(s):  
Mohammad Alhuyi Nazari ◽  
Akbar Maleki ◽  
Mamdouh El Haj Assad ◽  
Marc A. Rosen ◽  
Arman Haghighi ◽  
...  
Keyword(s):  
Energy Storage ◽  
Phase Change ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Phase Change Materials ◽  
Solar Thermal ◽  
Solar Thermal Energy

Nanoencapsulated phase change materials for solar thermal energy storage

2021 ◽  
pp. 467-494
Author(s):  
Jyoti Saroha ◽  
Sonali Mehra ◽  
Mahesh Kumar ◽  
Velumani Subramaniam ◽  
Shailesh Narain Sharma
Keyword(s):  
Energy Storage ◽  
Phase Change ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Phase Change Materials ◽  
Solar Thermal ◽  
Solar Thermal Energy

scholarly journals Novel Bio-Based Pomelo Peel Flour/Polyethylene Glycol Composite Phase Change Material for Thermal Energy Storage

Polymers ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2043 ◽  
Author(s):  
Hai-Chen Zhang ◽  
Ben-hao Kang ◽  
Xinxin Sheng ◽  
Xiang Lu
Keyword(s):  
Thermal Stability ◽  
Energy Storage ◽  
Phase Change ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Phase Change Materials ◽  
Waste Heat ◽  
Solar Thermal ◽  
Solar Thermal Energy ◽  
Pomelo Peel

A series of novel bio-based form stable composite phase-change materials (fs-CPCMs) for solar thermal energy storage and management applications were prepared, using the pomelo peel flour (PPF) as the supporting matrix and poly (ethylene glycol) (PEG) or isocyanate-terminated PEG to induce a phase change. The microscopic structure, crystalline structures and morphologies, phase change properties, thermal stability, light-to-thermal conversion behavior, and thermal management characteristics of the obtained fs-CPCMs were studied. The results indicate that the obtained fs-CPCM-2 presented remarkable phase-change performance and high thermal stability. The melting latent heat and crystallization heat for fs-CPCM-2 are 143.2 J/g and 141.8 J/g, respectively, and its relative enthalpy efficiency ( λ ) is 87.4%, which are higher than most reported values in the related literature. The obtained novel bio-based fs-CPCM-2 demonstrated good potential for applications in solar thermal energy storage and waste heat recovery.

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