Abstract
This study presents electromagnetic-controlled thermal storage (ECTS) that can be directly implemented in strategies of low-temperature waste heat recovery for energy-consuming equipment. A magnetic nanofluid (MNF) prepared from fine iron ferrite ferromagnetic particles is recommended as a latent heat medium (LHM). During electromagnetic induction, local flow fluctuations are generated and thermal convection in the MNF can be enhanced. The achieved results demonstrated that ECTS has a wide operational range and an optimum storage efficiency of 84.46%. Thus, a self-perturbation mode used to enhance thermal energy transportation can be designed for numerous waste heat management applications.
Highlights
The need to curtail global warming has created a demand for green technology innovation and implementation, especially for heat conservation [1,2,3]
The magnetic nanofluid (MNF) flow can be transiently changed by the Lorentz force, and thermal instability in MNF can be actively enhanced
The electromagnetic-controlled thermal storage (ECTS) showed substantial failure at low fill ratios above the heating condition. This suggests that the fill ratio of the loop heat pipe is highly related to ECTS performance
Summary
The need to curtail global warming has created a demand for green technology innovation and implementation, especially for heat conservation [1,2,3] It resulted that thermal storages have been widely used in several engineering fields. Sensible heat is defined as the quantity of thermal energy that is stored in a storage medium without changing the phase of the medium This causes thermal stratification and reduces storage efficiency. Latent thermal storage systems require a small medium weight and volume for a given amount of energy [9]. It has drawn a considerable amount of interest in recent times because of its operational advantages. The performance of latent heat thermal storage is superior to that of sensible heat thermal storage
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