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PERFORMANCE OPTIMIZATION OF PHASE CHANGE HEAT ACCUMULATOR WITH TURN-OVER TRIANGULAR TUBE

Ming Zhao, Yuhao Zheng
Frontiers in Heat and Mass Transfer (FHMT) 16 - 19 (2021)


Abstract


The performance optimization of the triangular-tube phase change heat accumulator is carried out from three aspects. The first is to compare with three different types tubes: the traditional round tube, the square tube, and the elliptical tube. Results show that equilateral triangle tube has the best heat storage and release characteristics. The second is to study the sub-cavity heat accumulator model based on multiphase change materials on the basis of the triangular tube. The third is to study the turn-over triangular tube heat accumulator. Both the flip function through discrete point fitting and the best reversal time are obtained.

 


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DOI: http://dx.doi.org/10.5098/hmt.16.19

ISSN: 2151-8629