Effect of different heat transfer fluids on discharging performance of phase change material included cylindrical container during forced convection

2021 ◽  
Vol 28 (11) ◽  
pp. 3521-3533
Author(s):  
Fatih Selimefendigil ◽  
Ceylin Şirin ◽  
Hakan F. Öztop
Keyword(s):  
Heat Transfer ◽  
Phase Change ◽  
Phase Change Material ◽  
Forced Convection ◽  
Cylindrical Container ◽  
Heat Transfer Fluids ◽  
Change Material

scholarly journals Application of Phase Change Material in Sustainable Cooling of Data Centers

2013 ◽  
Author(s):  
Nikhil Dhiman ◽  
Jeet Shah ◽  
Dereje Agonafer ◽  
Naveen Kannan ◽  
James Hoverson ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Phase Change ◽  
Phase Change Material ◽  
Hot Water ◽  
Shear Stresses ◽  
Heat Transfer Fluids ◽  
Data Center Cooling ◽  
Heat Transfer Phenomenon ◽  
Pipe Joints ◽  
Change Material

The ever increasing information technology heat load and data center cooling energy are the main reasons to investigate the performance of microencapsulated phase change slurry over other heat transfer fluids. Microencapsulated phase change slurry is dispersion where the phase change material, microencapsulated by a polymeric capsule, is dispersed in water. Compared to water, these new fluids have a higher heat capacity during phase change and a possible enhancement, as a result of this phase change, in the heat transfer phenomenon. The composition of phase change material used in slurry greatly affects its efficiency, If not selected properly it can cause serious damage, e.g. agglomeration and clogging of pipes. The main objective of this work is to develop standalone pumpable microencapsulated phase change slurry that is able to withstand shear stresses of the pump and other course surfaces of pipe and pipe joints. In this study, experiments were performed, to determine performance of microencapsulated phase change slurry over conventional heat transfer fluids. After certain pumping cycles, scanning electron microscopy (SEM) has been done to analyze the conditions of shell material of polymeric capsule. Results obtained from SEM show that centrifugal pump is compatible with mPCM particle size upto 3 μm. It is true that selected mPCS have shown better performance over water in hot water bath in case of thermal storage. Also, closed loop final testing has shown that heat flux is about 2–3 times higher with mPCS than water.

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