dc.contributor.authorKhor, Jun Onn
dc.contributor.authorLi, Yongliang
dc.contributor.authorRomagnoli, Alessandro
dc.date.accessioned2018-11-07T04:12:03Z
dc.date.available2018-11-07T04:12:03Z
dc.date.issued2018
dc.identifier.citationKhor, J. O., Li, Y., & Romagnoli, A. (2018). Packed bed regenerators using cascaded phase change materials : overcharging and possible solutions. Proceedings of 13th Conference on Sustainable Development of Energy, Water and Environment Systems.
dc.identifier.urihttp://hdl.handle.net/10220/46570
dc.description.abstractIn this paper, packed bed regenerators using different phase change materials cascaded in series for cold energy storage are investigated with specific focus on charging behaviour. Indeed, when one phase change material has significantly different thermodynamic properties than the others, or when flow rate of heat transfer fluid which contains cold energy to be stored is low, there can be an undesired scenario of overcharging certain phase change materials. This scenario subsequently leads to wastage of cold energy, especially when the phase change material meant for high grade cold storage is overcharged. Two solutions are suggested such as changing the encapsulation size of the affected phase change materials or increasing the storage capacity of the phase change material, or combining both of them. It is found out that increasing the storage capacity alone can solve the overcharging problem, with an improvement on the storage capacity of the regenerator. However, this increase in storage capacity also increases overall charge time of the regenerator. When incorporating both increase in storage capacity and encapsulation size of the affected PCM, the increment in storage capacity is less, but it brings an advantage of slighter increase in the overall charge time of the regenerator. It is also proven that in any of the cases, the efficiency in recovering or storing the high grade cold energy, is improved compared to the baseline cases.en_US
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en_US
dc.format.extent16 p.en_US
dc.language.isoenen_US
dc.rights© 2018 The Author(s). This is the author created version of a work that has been peer reviewed and accepted for publication by 13th Conference on Sustainable Development of Energy, Water and Environment Systems. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document.en_US
dc.subjectThermal Energy Storageen_US
dc.subjectPacked Bed Regeneratorsen_US
dc.subjectDRNTU::Engineering::Mechanical engineeringen_US
dc.titlePacked bed regenerators using cascaded phase change materials : overcharging and possible solutionsen_US
dc.typeConference Paper
dc.contributor.conference13th Conference on Sustainable Development of Energy, Water and Environment Systemsen_US
dc.contributor.researchEnergy Research Institute @NTUen_US
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen_US
dc.contributor.schoolInterdisciplinary Graduate School (IGS)en_US
dc.description.versionAccepted versionen_US


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