Performance study of a novel funnel shaped shell and tube latent heat thermal energy storage system

Kumar, Ashish; Saha, Sandip K.

doi:10.1016/j.renene.2020.11.023

Cited by 56 publications

(6 citation statements)

References 25 publications

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“…There are two types of thermal ESS, depending on the temperature and energy storage materials, i.e., thermal ESS with small and large values of temperature [ 134 ]. Thermal ESS with smaller values of temperature contain cryogenic energy storage and auriferous low-temperature storage systems.…”

Section: Electrical Energy Storage Classificationmentioning

confidence: 99%

Review on Comparison of Different Energy Storage Technologies Used in Micro-Energy Harvesting, WSNs, Low-Cost Microelectronic Devices: Challenges and Recommendations

Riaz

Sarker

Saad

et al. 2021

Sensors

126

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This paper reviews energy storage systems, in general, and for specific applications in low-cost micro-energy harvesting (MEH) systems, low-cost microelectronic devices, and wireless sensor networks (WSNs). With the development of electronic gadgets, low-cost microelectronic devices and WSNs, the need for an efficient, light and reliable energy storage device is increased. The current energy storage systems (ESS) have the disadvantages of self-discharging, energy density, life cycles, and cost. The ambient energy resources are the best option as an energy source, but the main challenge in harvesting energy from ambient sources is the instability of the source of energy. Due to the explosion of lithium batteries in many cases, and the pros associated with them, the design of an efficient device, which is more reliable and efficient than conventional batteries, is important. This review paper focused on the issues of the reliability and performance of electrical ESS, and, especially, discussed the technical challenges and suggested solutions for ESS (batteries, supercapacitors, and for a hybrid combination of supercapacitors and batteries) in detail. Nowadays, the main market of batteries is WSNs, but in the last decade, the world’s attention has turned toward supercapacitors as a good alternative of batteries. The main advantages of supercapacitors are their light weight, volume, greater life cycle, turbo charging/discharging, high energy density and power density, low cost, easy maintenance, and no pollution. This study reviews supercapacitors as a better alternative of batteries in low-cost electronic devices, WSNs, and MEH systems.

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Section: Electrical Energy Storage Classificationmentioning

confidence: 99%

Review on Comparison of Different Energy Storage Technologies Used in Micro-Energy Harvesting, WSNs, Low-Cost Microelectronic Devices: Challenges and Recommendations

Riaz

Sarker

Saad

et al. 2021

Sensors

126

View full text Add to dashboard Cite

show abstract

“…Since the axisymmetry serves to reduce the terms describing angular components and therefore reduce the computational time due to no circumferential variation in the flow, it has been widely utilized in the literature. 37,38 Moreover, the governing equations on the water fluid flow are the conventional Navier-Stokes equations where the effect of phase change are eliminated from Equations ( 2) to (4).…”

Section: Governing Equationsmentioning

confidence: 99%

Numerical investigation of a double‐pipe latent heat thermal energy storage with sinusoidal wavy fins during melting and solidification

Shahsavar

Goodarzi

Talebizadehsardari

et al. 2021

Intl J of Energy Research

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With the aim of an efficient thermal energy storage, this study was carried out on the phase change process in a double-pipe latent heat storage system incorporating sinusoidal wavy fins during both melting and solidification and the outcomes were compared with that for smooth and non-finned units. The phase change material is in the outer side while the water (heat transfer fluid) is passed through the inner side which formed a vertical double tube. The investigation on the performance of different wave-amplitudes and wavelengths of the wavy fins lead to the qualification of the best wave profile. The characteristics of the water flow were also examined. The numerical results reflect that, for the best wavy profile, with the wave-amplitude and wavelength of 2 and 1 mm, respectively, the time for melting and solidification reduces by 43.49% and 17.81%, compared with that of the non-finned unit while they are 7.7% and 4.45% compared to the smooth fin case. Furthermore, sensitivity analysis of the Reynolds number and inlet temperature of water indicates that higher Reynolds number and the temperature difference between the inlet water and melting point result in a time reduction in the charging and discharging.

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“…These strategies to augment the melting rate are categorised primarily into three groups: (i) increasing the heat transfer surface area, (ii) boosting effective thermal conductivity, and (iii) enhancing fluid motion in the melting zone. The majority of extant research concentrates on passive techniques for increasing melting efficiency, which include modifying the TES unit geometry [6,7], employing multiple PCMs [8,9], microencapsulation of PCM [10], optimising operating conditions [11,12] and adding high conductivity enhancers into the PCM to directly increase the effective thermal conductivity [13]. These enhancers include fins [14][15][16], nanoparticles [17][18][19], metal foam [20][21][22], heat pipe [23,24] and the combination of them [25,26].…”

Section: Introductionmentioning

confidence: 99%

Melting and Solidification Characteristics of PCM in Oscillated Bundled-Tube Thermal Energy Storage System

Liu,

Xiao,

Chen

et al. 2024

Energies

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Phase change material (PCM) based thermal energy storage (TES) is an important solution to the waste of heat and intermittency of new energy sources. However, the thermal conductivity of most PCMs is low, which severely affects the thermal energy storage performance. Oscillation of the tube bundles in a TES unit can intensify the convection of liquid PCM and, therefore, enhance heat transfer. However, the energy storage performance of bundled-tube TES systems in response to oscillation at different amplitudes and frequencies has not been well understood yet, and the optimum time to apply the oscillation during phase transition remains unexplored. To address this issue, this present study was carried out. First, the melting behaviour of PCM with oscillation starting at different times was investigated. Then, the influences of oscillation frequency and amplitude on the melting performance were explored. Finally, the solidification behaviour of PCM with oscillation starting at different times was examined. Results show that the oscillation can accelerate the phase transition process by enhancing convective heat transfer. Compared to the case without oscillation, the complete melting and solidification times are reduced by 8.2 and 6.7% for the case with oscillation starting at 200 s, respectively. The effect of oscillation frequency on the melting enhancement is negligible, while the oscillation amplitude has an important effect on the melting enhancement.

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Performance study of a novel funnel shaped shell and tube latent heat thermal energy storage system

Cited by 56 publications

References 25 publications

Review on Comparison of Different Energy Storage Technologies Used in Micro-Energy Harvesting, WSNs, Low-Cost Microelectronic Devices: Challenges and Recommendations

Review on Comparison of Different Energy Storage Technologies Used in Micro-Energy Harvesting, WSNs, Low-Cost Microelectronic Devices: Challenges and Recommendations

Numerical investigation of a double‐pipe latent heat thermal energy storage with sinusoidal wavy fins during melting and solidification

Melting and Solidification Characteristics of PCM in Oscillated Bundled-Tube Thermal Energy Storage System

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