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By combining thermal energy storage and CAES, a high-temperature hybrid compressed air energy storage system (HTH-CAES) has been proposed by Houssainy et al [18]. The conventional combustion and emissions were removed and replaced by two separate low and high-temperature thermal energy storage units.
This research developed a novel medium-temperature (up to 300 C) latent heat thermal energy storage (LHTES) system, utilizing a compact shell-and-tube thermal exchange system containing spiral finned tubes, 220 kg
Only a few research articles enlisted in Table 1 have discussed the investigations on multiple tube latent heat thermal energy storage system (MT-LHTESS). Agyenim et al. [45] investigated the effect of using four HTF tubes on the charging and discharging performance of MT-LHTESS with erythritol as PCM.
Abstract. The selection of artificial cylinder boundary is of vital importance in the simulation of multiple-tube thermal energy storage (TES). This paper is intended to design and compare the accuracy of the concentric and eccentric artificial cylinder boundary, which is used to simplify the geometry of multiple tubes thermal energy storage
Analysis on the effect of cone angles on the charging performance of LHTES units. • Thermal performance of conical shell and conical tube configurations is compared. • A novel conical tube configuration is proposed to eliminate the hard-to-melt zone. • Effects of
Abstract The latent heat thermal energy storage system (LHTES) utilizes phase change material (PCM) to store energy. The non-uniformity in heat transfer between heat transfer
The energy efficiency ratio of a shell-and-tube phase change thermal energy storage unit is more sensitive to the outer tube diameter. Under the same working conditions, within the heat transfer fluids studied, the heat storage property of the phase change thermal energy storage unit is best for water as heat transfer fluid.
Latent heat thermal energy storage systems can effectively fill the gap between energy storage and application, and phase-change materials (PCMs) are
The cylindrical LHTES system is mainly divided into a triplex-tube thermal energy storage system (TTES) and shell and tube thermal storage system [22]. Because the triplex-tube thermal energy storage system has a larger heat transfer and exchange area, its heat transfer efficiency is higher than that of the two-tube heat storage system.
This study shows that the proposed latent heat thermal energy storage unit (M06) significantly reduces PCM melting time compared with vertical (76%), horizontal (66%), and helical-coiled. (53%
Nevertheless, the widespread deployment of cold storage like sensible cold storage and PCM-based cold storage has been impeded by the low energy/power density and huge cold loss [[6], [7], [8]]. Sorption thermal battery (STB) provides one promising solution to address those problems by its high sorption enthalpy, near zero
Energy storage technologies play a hard role in smoothening the fluctuations and improving penetrations of renewables. Compressed CO 2 energy storage is a promising large-scale technology because of the excellent thermos-physical characteristics of CO 2.
The energy and exergy analyses were performed for a laboratory-scale latent heat thermal energy storage (LTES) using hexahydrate calcium chloride (CC6) as phase change material (PCM) in a staggered tube array configuration, placed horizontally.
An experimental investigation on the thermal performance of vertical multitube shell and tube based latent heat thermal energy storage system (LHTES) during discharging process for solar applications at medium temperature (∼200 C) is presented in this paper.
Consequently, the key limitation of heat storage in the horizontal tube is located in the bottom half, which is defined as hard-melting region, and thickening and lengthening the bottom fins is
The physical model of the present work is a horizontal shell and tube latent heat thermal energy storage unit. The PCM is placed in the shell side while the HTF streams in the copper inner tubes as displayed in Fig. 1 (a) the outer shell and the inner tube diameters are 88 mm and 12.7 mm, respectively, which are chosen from Mehta et al. [13]
solidification in a shell and tube latent therm al energy storage unit, Solar energy, 79, 2005, 648-660. Gharebagi M, Sezai I, Enhancement of heat transfer in latent heat storage modules w ith
This work proposes a novel type of shell and tube latent thermal energy storage unit (LTESU). Effects of the thermal conductivity of PCM, the inlet temperature of heat transfer fluid (HTF), the inlet velocity of HTF and fin layout (fin length and distribution) on the thermal performance and exergy efficiency of the LTESU are numerically
This was also confirmed through the average energy storage rate, which was the ratio of the stored thermal energy and the time required to store that amount of energy. As illustrated in Fig. 10, the highest average energy storage rate was at the bottom eccentricity of 0.60 t o 0.75 .
In this study, the energy storage behavior (melting or charging) and energy removal process (solidification or discharging) are investigated in the presence of
Thermal performance investigation of energy storage based U-pipe evacuated tube solar collector: An experimental study Sustainable Energy Technol. Assess., 52 ( 2022 ), Article 102146 View PDF View article View in Scopus Google Scholar
To ensure a stable energy supply, the intermittent nature of these energy sources necessitates the development of efficient and dependable energy storage solutions [6, 7]. LHTES systems offer a valuable means of storing excess energy generated during periods of high supply and releasing it during periods of high demand, thereby improving
The multitube design in the shell-and-tube type latent heat thermal energy storage (LHTES) system has received intensive attention due to its promising benefits in enhancing heat storage efficiency.
Numerical modeling was performed to simulate the melting process of a fixed volume/mass phase-change material (PCM) in different shell-and-tube type latent thermal energy storage units with identical heat transfer area.The effect of liquid PCM natural convection (NC) on the latent heat storage performance of the pipe and cylinder
Thermal assessment on solid-liquid energy storage tube packed with non-uniform angled fins Sol. Energy Mater. Sol. Cells, 236 (2022), Article 15111526 Google Scholar [40] N.R. Vyshak, G. Jilani Numerical analysis of latent heat thermal energy storage system
1. Introduction The world demand of energy grows rapidly because of human being''s activity. However, because harmful effects of fossil fuels on the health of human beings and environment and their limited reserve (Corumlu et al., 2018), clean, renewable, and sustainable energy sources are required for providing this growing
Evaluation of discharging performance of molten salt/ceramic foam composite phase change material in a shell-and-tube latent heat thermal energy storage unit Renew. Energy, 198 ( 2022 ), pp. 1210 - 1223
The physical model of the current work is the double-pipe LHTES unit which consists of a circular inner tube with a diameter of 23 mm, an outer diameter of 70 mm, and a unit storage length of 1000 mm as shown in Fig. 1 a which is selected from [47].The inner tube
These results can provide guidance for the fin configuration in the shell and tube latent heat thermal energy storage unit to achieve higher energy storage efficiency.
The synergy between renewable energy and energy storage is vital for successfully integrating and optimising renewable energy sources in energy systems. Renewable sources like solar, wind, hydro, geothermal, and biomass exhibit variability and intermittency in their generation patterns, with energy output dependent on weather
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