Numerical analysis of the paraffin wax–air spiral thermal energy storage unit

Jerzy Banaszek , Roman Domański , M. Rebow , F. El-Sagier


A two-dimensional computer simulation is presented for conjugate heat transfer and solid–liquid phase change, concurrently occurring within a domain of the paraffin wax–air spiral thermal energy storage unit during its charging and discharging. The numerical model is based on local energy balances in a set of curvilinear control-volumes (the domain of the unit is divided into), and on the enthalpy approach to account for the latent heat effect. The results obtained are compared with the experimental data, reported in the authors' earlier paper (Banaszek J., Domañski R., Rebow M. and El-Sagier F., Experimental study of solid–liquid phase change in a spiral thermal energy storage unit, Applied Thermal Engineering 19 (1999) 1253–1277), to find out that the proposed numerical model is a reliable and sufficiently accurate calculation tool, although some incongruity between calculated and measured temperature of the paraffin wax exists. The reasons for this discrepancy are thoroughly analyzed and discussed in the paper.
Author Jerzy Banaszek (FPAE / IHE)
Jerzy Banaszek,,
- The Institute of Heat Engineering
, Roman Domański (FPAE / IHE)
Roman Domański,,
- The Institute of Heat Engineering
, M. Rebow
M. Rebow,,
, F. El-Sagier
F. El-Sagier,,
Journal seriesApplied Thermal Engineering, ISSN 1359-4311
Issue year2000
Keywords in Englishnumerical analysis, Spiral heat exchanger, Thermal energy storage
ASJC Classification2209 Industrial and Manufacturing Engineering; 2102 Energy Engineering and Power Technology
Score (nominal)35
Score sourcejournalList
Publication indicators WoS Citations = 25; GS Citations = 50.0; Scopus SNIP (Source Normalised Impact per Paper): 2000 = 1.033; WoS Impact Factor: 2006 = 0.814 (2) - 2007=1.175 (5)
Citation count*51 (2020-09-28)
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