Study of Paraffin wax as a phase change material for heating and cooling load

2020 ◽  
Vol 12 (3) ◽  
pp. 177
Author(s):  
Vandan Zendekar ◽  
Sagar Sonawale ◽  
Ashwini Dhadge ◽  
Nikita Takawane
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Paraffin Wax ◽  
Cooling Load ◽  
Heating And Cooling ◽  
Heating And Cooling Load ◽  
Change Material

Investigation on the melting process of phase change material in a square cavity with a single fin attached at the center of the heated wall

2018 ◽  
Vol 83 (1) ◽  
pp. 10902 ◽  
Author(s):  
Müslüm Arıcı ◽  
Ensar Tütüncü ◽  
Hasan Karabay ◽  
Antonio Campo
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Melting Process ◽  
Melting Rate ◽  
Paraffin Wax ◽  
Heated Wall ◽  
Dual Function ◽  
Square Cavity ◽  
Change Material ◽  
Fin Length

In this study, melting of a phase change material (PCM) in a square cavity with a single fin attached at the center of the heated wall is studied numerically employing the enthalpy-porosity method. The opposite wall to the heated wall in the square cavity is cold. The other two adjacent walls are thermally insulated. Paraffin wax is chosen as a PCM due to its demonstrable favorable properties. The thermophysical properties of the paraffin wax are assumed to be a dual function of temperature and phase. The influence of the fin length on the melting process of the paraffin wax is examined. Moreover, the orientation of the square cavity on the melting process is scrutinized. The numerical results elucidate that the melting rates increase significantly by embedding the fin into the paraffin wax. As the fin length is incremented, the melting rate intensifies considerably during the early stages of melting. However, the effect of the fin length on the melting rate diminishes after a long period of heating has happened. It is also observed that the melting rate can be augmented significantly by changing the orientation of the heated wall in the square cavity.

Binary Mixture of Solid-Solid Phase Change Material: Synthesis, Characterization and Experimental Study

2020 ◽  
Vol 978 ◽  
pp. 407-420
Author(s):  
Cyril Reuben Raj ◽  
S. Suresh ◽  
Arijit Upadhyay ◽  
K. Akash Govind ◽  
R. Nivethaa
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Solid Phase ◽  
Electronic System ◽  
Laser Flash ◽  
Phase Identification ◽  
Heating And Cooling ◽  
Blending Method ◽  
Phase Transition Temperatures ◽  
Change Material

In this work, a class of polyol solid-solid phase change material where Neopentyl glycol is mixed in 6 and 2 wt.% of Pentaerythritol and was synthesized by physical blending method to obtain homogeneous mixture and thermally cycled for 500 times. The surface morphology, chemical composition, crystal phase identification, thermal degradation, and phase change phenomena were characterized. The phase transition temperatures and enthalpies upon heating and cooling of 6 and 2 wt.% of Pentaerythritol are found to be 43.1 °C, 133 J g-1, and 28.2 °C, 119 J g-1, and 41.2 °C, 121 J g-1, and 28.5 °C, 106 J g-1, respectively which suits for electronic system to keep under operating zone. Laser Flash Apparatus was used to find the thermal diffusivity and thermal conductivity value was calculated. Further, the effect of heat transfer in binary polyol mixtures were experimentally analysed through conventional heat sink for electronic cooling application.

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