Numerical approach and experimental investigation of a stratified hot water storage tank for domestic hot water production
Thermal stratification within storage tanks plays a critical role in the efficiency of thermal energy storage systems. In this paper, one-dimensional numerical model of a stratified storage tank is developed to simulate the thermal stratification process within a storage tank during the charging and...
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| Language: | English |
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Elsevier
2024-12-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123024014762 |
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| author | M. Reda Haddouche F.J.S. Velasco F. Illán J.R. García Cascales |
| author_facet | M. Reda Haddouche F.J.S. Velasco F. Illán J.R. García Cascales |
| author_sort | M. Reda Haddouche |
| collection | DOAJ |
| description | Thermal stratification within storage tanks plays a critical role in the efficiency of thermal energy storage systems. In this paper, one-dimensional numerical model of a stratified storage tank is developed to simulate the thermal stratification process within a storage tank during the charging and the discharging processes, capturing the temperature distribution inside the storage tank over time. This work investigates the evolution and transient behavior of stratified flows during the heating and cooling process within sensible-heat energy storage systems under ReD=167 and ReD=616 for heating process. For that purpose, an experimental campaign was performed in an instrumented water storage tank to measure the stratification process when a hot water round jet was injected into a slender cylindrical tank filled with an initially uniform hydrostatic water field stabilized at a lower temperature. This information was used to develop a simple 1D model able to be applied during long-term charging/discharging transients of these kind of systems. The 1D model developed was validated against the experiments performed following prototypical charging/discharging tests according to the standard EN16147 and can be used to describe the energy performance of this kind of systems during long-term charging/discharging sequences. The present model provides a reduction of about 5 % of the error of the time of the water cooling process with respect to other models in the literature. |
| format | Article |
| id | doaj-art-e6ce583e714341d39f7dd518c3845498 |
| institution | OA Journals |
| issn | 2590-1230 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj-art-e6ce583e714341d39f7dd518c38454982025-08-20T02:37:25ZengElsevierResults in Engineering2590-12302024-12-012410322110.1016/j.rineng.2024.103221Numerical approach and experimental investigation of a stratified hot water storage tank for domestic hot water productionM. Reda Haddouche0F.J.S. Velasco1F. Illán2J.R. García Cascales3Universitat de Lleida, Departament d'Enginyeria Industrial i de l'Edificació, EPS, 25003, Lleida, Spain; Corresponding author.Universidad Politécnica de Cartagena, ETSII, 30202 Cartagena, Murcia, SpainUniversidad Politécnica de Cartagena, ETSII, 30202 Cartagena, Murcia, SpainUniversidad Politécnica de Cartagena, ETSII, 30202 Cartagena, Murcia, SpainThermal stratification within storage tanks plays a critical role in the efficiency of thermal energy storage systems. In this paper, one-dimensional numerical model of a stratified storage tank is developed to simulate the thermal stratification process within a storage tank during the charging and the discharging processes, capturing the temperature distribution inside the storage tank over time. This work investigates the evolution and transient behavior of stratified flows during the heating and cooling process within sensible-heat energy storage systems under ReD=167 and ReD=616 for heating process. For that purpose, an experimental campaign was performed in an instrumented water storage tank to measure the stratification process when a hot water round jet was injected into a slender cylindrical tank filled with an initially uniform hydrostatic water field stabilized at a lower temperature. This information was used to develop a simple 1D model able to be applied during long-term charging/discharging transients of these kind of systems. The 1D model developed was validated against the experiments performed following prototypical charging/discharging tests according to the standard EN16147 and can be used to describe the energy performance of this kind of systems during long-term charging/discharging sequences. The present model provides a reduction of about 5 % of the error of the time of the water cooling process with respect to other models in the literature.http://www.sciencedirect.com/science/article/pii/S2590123024014762Stratified storage tankStratificationFluid dynamicsHeat pumpFinite difference method |
| spellingShingle | M. Reda Haddouche F.J.S. Velasco F. Illán J.R. García Cascales Numerical approach and experimental investigation of a stratified hot water storage tank for domestic hot water production Results in Engineering Stratified storage tank Stratification Fluid dynamics Heat pump Finite difference method |
| title | Numerical approach and experimental investigation of a stratified hot water storage tank for domestic hot water production |
| title_full | Numerical approach and experimental investigation of a stratified hot water storage tank for domestic hot water production |
| title_fullStr | Numerical approach and experimental investigation of a stratified hot water storage tank for domestic hot water production |
| title_full_unstemmed | Numerical approach and experimental investigation of a stratified hot water storage tank for domestic hot water production |
| title_short | Numerical approach and experimental investigation of a stratified hot water storage tank for domestic hot water production |
| title_sort | numerical approach and experimental investigation of a stratified hot water storage tank for domestic hot water production |
| topic | Stratified storage tank Stratification Fluid dynamics Heat pump Finite difference method |
| url | http://www.sciencedirect.com/science/article/pii/S2590123024014762 |
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