Experimental and numerical investigation of a solar thermocline system for domestic water heating applications

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dc.authoridPANDEY, CHANDAN/0000-0002-9556-257X
dc.authoridCheema, Taqi Ahmad/0000-0002-2587-6602
dc.contributor.authorCheema, T. A.
dc.contributor.authorJavaid, H.
dc.contributor.authorYildizhan, H.
dc.contributor.authorTariq, M. H.
dc.contributor.authorBasharat, M. T.
dc.contributor.authorSubhani, Z. M.
dc.contributor.authorFakhraei, O.
dc.date.accessioned2025-01-06T17:44:35Z
dc.date.available2025-01-06T17:44:35Z
dc.date.issued2024
dc.description.abstractSolar energy is one of the major sources of renewable energy and is being extensively harnessed. However, the intermittent nature limits solar energy to act as a stand-alone energy source. Therefore, it becomes imperative that effective and economical methods of storing solar energy on a large scale are developed. Both sensible and latent heat storage methods are available. The use of a thermal energy storage (TES) system is an attractive choice for high-temperature applications such as power generation plants. The present study investigates the development of a small-scale TES system using a concentrated solar collector. For this purpose, a small cylindrical thermocline tank with suspended copper pipes in the storage medium was developed, with vegetable oil working as the heat transfer fluid (HTF) and being circulated through the pipes to transfer heat to used engine oil as the storage medium. A pump continuously circulates the HTF through the charging loop. TES was designed and developed based on the results of numerical simulations before the physical development of the experimental setup. Numerical calculations were performed for determining heat transfer and charging characteristics using different heat storage materials. The numerical results showed that a maximum temperature of 67 degrees C was achieved in the 100-min simulation while in the experimental results, a maximum temperature of 64 degrees C was achieved. The experimental results were found in close conformance with the simulation results. The experiments showed that the flow rate of 0.088 L s-1 was optimal and provided the highest temperature in the thermocline tank. The discharging experiment showed that the apparatus is viable to be used for 5.5 h for heating purposes. The salient feature of the study is an inexpensive TES system development and can act as a benchmark for the future development of renewable technology.
dc.description.sponsorshipGhulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi [23460]; KPK, Pakistan
dc.description.sponsorshipThe authors acknowledge the support of the Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi, 23460, KPK, Pakistan, and its Interdisciplinary Engineering, Modelling and Simulation Research Group (IEMSRG) in carrying out the present research work.
dc.identifier.doi10.1007/s10973-024-13148-x
dc.identifier.endpage8798
dc.identifier.issn1388-6150
dc.identifier.issn1588-2926
dc.identifier.issue16
dc.identifier.scopus2-s2.0-85191779282
dc.identifier.scopusqualityQ1
dc.identifier.startpage8787
dc.identifier.urihttps://doi.org/10.1007/s10973-024-13148-x
dc.identifier.urihttps://hdl.handle.net/20.500.14669/3106
dc.identifier.volume149
dc.identifier.wosWOS:001209653200003
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofJournal of Thermal Analysis and Calorimetry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectThermocline
dc.subjectRenewable energy
dc.subjectSolar energy
dc.subjectCharging
dc.subjectHeat transfer fluid
dc.subjectDischarging
dc.titleExperimental and numerical investigation of a solar thermocline system for domestic water heating applications
dc.typeArticle

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