Increasing the rating performance of paraffin up to 5000 cycles for active latent heat storage by adding high-density polyethylene to form shape-stabilized phase change material

2022 ◽  
Vol 46 ◽  
pp. 103762
Author(s):  
Dwi Rahmalina ◽  
Reza Abdu Rahman ◽  
Ismail
1993 ◽  
Vol 115 (4) ◽  
pp. 240-243 ◽  
Author(s):  
Ch. Charach

This communication extends the thermodynamic analysis of latent heat storage in a shell-and-tube heat exchanger, developed recently, to the complete heat storage-removal cycle. Conditions for the cyclic operation of this system are formulated within the quasi-steady approximation for the axisymmetric two-dimensional conduction-controlled phase change. Explicit expressions for the overall number of entropy generation units that account for heat transfer and pressure drop irreversibilities are derived. Optimization of this figure of merit with respect to the freezing point of the phase-change material and with respect to the number of heat transfer units is analyzed. When the frictional irreversibilities of the heat removal stage are negligible, the results of these studies are in agreement with those developed recently by De Lucia and Bejan (1991) for a one-dimensional latent heat storage system.


2011 ◽  
Vol 137 (4) ◽  
pp. 214-219 ◽  
Author(s):  
Yan-Hua Bao ◽  
Wei Pan ◽  
Ting-Wei Wang ◽  
Ze Wang ◽  
Fang-Ming Wei ◽  
...  

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