2020
DOI: 10.1016/j.energy.2019.116800
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Thermal performance evaluation of non-uniform fin array in a finned double-pipe latent heat storage system

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Cited by 133 publications
(33 citation statements)
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“…The fluid flow was laminar and transient and was also considered incompressible and Newtonian. The viscous dissipation was also neglected and the no-slip boundary condition was used for the walls [45,50]. The adiabatic boundary condition was considered for the outer wall of the heat exchanger and for PCM walls at the bottom and top of the heat exchanger, which is meaningful, considering a high-quality insulation.…”
Section: Mathematical Modelingmentioning
confidence: 99%
See 1 more Smart Citation
“…The fluid flow was laminar and transient and was also considered incompressible and Newtonian. The viscous dissipation was also neglected and the no-slip boundary condition was used for the walls [45,50]. The adiabatic boundary condition was considered for the outer wall of the heat exchanger and for PCM walls at the bottom and top of the heat exchanger, which is meaningful, considering a high-quality insulation.…”
Section: Mathematical Modelingmentioning
confidence: 99%
“…For obtaining a good role of natural convection during melting, Singh et al [44] recommended a non-uniform distribution with a gradual decrease in the circular fin height, so that up to 43% charging-time saving could be achieved. However, Shahsavar et al [45] reported that homogeneous fin distribution could save melting time by around 24 percent compared to the corresponding non-uniform fin distribution. Yang et al [46] found that applying fins with irregular distributions can reduce the average temperature of PCMs by about 34% and save 63% on melting time.…”
Section: Introductionmentioning
confidence: 99%
“…Because of the weak thermal conductivity of PCMs, the thermal efficiency of thermal energy storage systems (TES) suffers from low heat transfer rates. Different methods are used to enhance the thermal conductivity, such as utilizing different configurations of fins [ 5 ], changing the configuration of the geometry [ 6 , 7 , 8 ], metal foam [ 9 ], and nanotechnology [ 10 , 11 ], using multiple PCMs [ 12 ], and using the combinations of different methods [ 12 ]. LHTES systems naturally result in a compact thermal energy storage design due to the high energy density of phase change.…”
Section: Introductionmentioning
confidence: 99%
“…To enhance the thermal response of LHTES, various techniques have been proposed, such as the use of a finned unit to increase total surface areas [ 4 , 5 ], direct contact heat transfer [ 6 ], and the modification of materials with a porous matrix [ 7 , 8 ]. Several studies have demonstrated that the time required to store and discharge heat is reduced by using foams, such as a copper foam bonded to a material that undergoes the phase change [ 9 ], a paraffin/copper foam and paraffin/nickel foam composite [ 10 ], and conductive foams and finned pipes [ 11 ].…”
Section: Introductionmentioning
confidence: 99%