Performance Analysis of Heat Sinks With Phase-Change Materials Subjected to Transient and Cyclic Heating

2015 ◽  
Vol 36 (16) ◽  
pp. 1349-1359 ◽  
Author(s):  
Sandip Kumar Saha ◽  
Pradip Dutta
Keyword(s):  
Performance Analysis ◽  
Phase Change ◽  
Phase Change Materials ◽  
Heat Sinks ◽  
Cyclic Heating

scholarly journals Heat storage performance analysis and parameter design for encapsulated phase change materials

2018 ◽  
Vol 157 ◽  
pp. 619-630 ◽  
Author(s):  
Qinghua Yu ◽  
Alessandro Romagnoli ◽  
Bushra Al-Duri ◽  
Danmei Xie ◽  
Yulong Ding ◽  
...  
Keyword(s):  
Performance Analysis ◽  
Phase Change ◽  
Phase Change Materials ◽  
Heat Storage ◽  
Parameter Design ◽  
Storage Performance

scholarly journals Computational Study of Heat Transfer inside Different PCMs Enhanced by Al2O3 Nanoparticles in a Copper Heat Sink at High Heat Loads

Nanomaterials ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 284 ◽  
Author(s):  
Nadezhda S. Bondareva ◽  
Nikita S. Gibanov ◽  
Mikhail A. Sheremet
Keyword(s):  
Phase Change ◽  
Phase Change Materials ◽  
Computational Study ◽  
Conjugate Problem ◽  
High Heat ◽  
Solid Particles ◽  
Heat Sinks ◽  
Al2o3 Nanoparticles ◽  
Electronic Elements ◽  
The Impact

The cooling of electronic elements is one of the most important problems in the development of architecture in electronic technology. One promising developing cooling method is heat sinks based on the phase change materials (PCMs) enhanced by nano-sized solid particles. In this paper, the influence of the PCM’s physical properties and the concentration of nanoparticles on heat and mass transfer inside a closed radiator with fins, in the presence of a source of constant volumetric heat generation, is analyzed. The conjugate problem of nano-enhanced phase change materials (NePCMs) melting is considered, taking into account natural convection in the melt under the impact of the external convective cooling. A two-dimensional problem is formulated in the non-primitive variables, such as stream function and vorticity. A single-phase nano-liquid model is employed to describe the transport within NePCMs.

Thermal and Electrical Performance Analysis of a Novel Medium Concentration Dual Photovoltaic System for Different Phase Change Materials

2020 ◽  
Author(s):  
Arshmah Hasnain ◽  
Jawad Sarwar ◽  
Qamar Abbas ◽  
Muhammad Azeem Younas ◽  
Konstantinos E. Kakosimos
Keyword(s):  
Performance Analysis ◽  
Phase Change ◽  
Work Performance ◽  
Phase Change Materials ◽  
Solid Phase ◽  
Photovoltaic System ◽  
Electrical Performance ◽  
Current Configuration ◽  
Four Seasons ◽  
Temperature Ranges

Abstract In this work, performance analysis of a medium concentrated photovoltaic system employing two mono-facial cells is carried out using a validated finite element based coupled optical, electrical, and thermal model. The environmental conditions of Lahore, Pakistan are considered, and the system is thermally regulated with a phase change material. Nine commercially available phase change materials (PCM) having melting temperature ranges between 41–65°C are selected. These PCMs include LA, RT47, S-series salt, ClimSel™ C48, STL47, RT54, RT60, RT62, and RT64. Temperature regulation, melt fraction, thermal and electrical efficiency are determined for each material for four months of January, March, July, and September representing four seasons of a year. The comparison of the materials has shown that S-series salt and C48 melt completely during the day and regenerate to solid-phase during night in the whole year except January. But S-series salt is found to be most suitable in current configuration due to its higher overall efficiency over the whole year.

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