This paper introduced a further heat transfer enhancement technique by inserting porous metal foam into the fin interstitials for a shell-and-tube thermal energy storage unit. The energy charging/discharging were evaluated by means of indicators including complete melting/solidification time, heat transfer coefficient, temperature
Read MoreIntroducing metal fins or foams can both enhance the performance of shell-and-tube phase change thermal energy storage (TES) devices, but the heat transfer mechanisms are different, i.e., heat transfer through a micro-liquid film, named close-contact melting (CCM) mode, brought by fins and reinforced-heat-conduction is triggered by
Read MoreThe tube array is an efficient technique to enhance the performance of shell and tube latent heat thermal energy storage systems (LHTESS) and overcome the low thermal conductivity of phase change materials (PCMs). while the PCM fills the annulus region between the inner tube and shell. The shell is made of steel with an
Read MoreThese investigations have demonstrated the potential for significant enhancements in the shell-tube LHTES''s heat transfer performance, resulting in more
Read MoreLatent heat storage in a shell-tube is a promising method to store excessive solar heat for later use. The shell-tube unit is filled with a phase change material PCM combined with a high porosity
Read MoreRequest PDF | On Jan 4, 2020, Xiaohu Yang and others published Design and operating evaluation of a finned shell-and-tube thermal energy storage unit filled with metal foam | Find, read and cite
Read MoreA 2D axisymmetric simulation was conducted to study the characteristics of the charging process in a shell-and-tube latent heat thermal energy storage unit. Open-cell metal foams with various
Read MoreA detailed techno-economic comparison—using annual, transient integrated system modelling—was conducted for sensible and latent heat thermal
Read MoreA two-dimensional schematic of the cascaded shell-and-tube TES module is shown in Fig. 1.The module consists of two horizontally-mounted concentric tubes made of aluminum having outer diameters of 12.7 mm (0.5 in. and 48.3 mm (2 in. with wall thickness of 1.27 mm (0.05 in. [12].The composite of cascaded metal foam in PCM
Read MoreMF has been used as one of the effective heat transfer enhancement techniques in latent heat thermal energy storage systems. The present study aims to combine the MF with wavy designs to provide a locally enhanced layer of wavy metal foam over the heat transfer tube in a shell-tube thermal energy storage design for the first
Read MoreIn the current study, the melting process of phase change material (PCM) embedded with nanoparticles and metal foams (MF) in a large scale shell-and-tube
Read MoreThe physical model used for the simulations of the shell-and-tube type LHTES corresponds to a test rig for measuring the thermal power of a shell-and-tube type storage filled with industrial grade paraffin wax Rubitherm ® RT 42. The test rig consists of a temperature-controlled heating and cooling unit, an inductive mass flow sensor and
Read MoreWang et al. (2020b) verified the superiority of the radial graded metal foam in the shell-and-tube structure through the experimental method. It was found that the radial graded structure could shorten the melting time by 37.6% and reduce the temperature gradient. Multiple-segment metal foam application in the shell-and-tube PCM thermal
Read MoreLi et al. [45] experimentally and numerically analyzed the effect of quadratic variation of HTF inlet temperature versus time on the thermal storage performance of a novel finned shell-tube energy storage tank. The results showed that the unsteady state condition could improve the PCM temperature distribution uniformity.
Read MoreTo analyze the effect of natural convection on melting process for a horizontal shell-and-tube latent heat storage (STLHS) unit, the melting performance of
Read MoreThe melting thermal energy storage and heat transfer of paraffin wax in a storage unit was modeled in the presence of a wavy copper foam. The phase-change energy and natural convection effects were modeled using the enthalpy porosity approach.The control equations were solved using the finite element method over a
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Read MoreGiven the drawbacks of the conventional welding methods in joining the battery case and tab in the lithium-ion battery, the laser welding technique using the metal tube has been introduced for the
Read MorePrevious studies in literatures adequately emphasized that inserting fins into phase change material is among the most promising techniques to augment thermal
Read MoreThis study reports on melting and solidification enhancement of PCM with cascaded multiple-segment metal foam in shell-and-tube storage containment heat exchanger. Four cascading arrangements of the metal foam with average porosity fixed at ε = 0.95 were investigated and compared.
Read MoreMoreover, it has been proven that The effective thermal conductivity of the PCM and the melting rate of a shell and tube latent heat thermal energy storage unit can be improved significantly by integrating with metal foam fins [16]. Nevertheless, utilizing metal foams may lead to the suppression of natural convection [17]. Remarkably, a
Read MoreAccording to the literature survey, it is found that metal foam is usually used to improve the energy storage performance of PCM in a shell-and-tube unit. However, metal can be corroded by molten salt and is not a long-term solution. Ceramic foam is a promising candidate due to its excellent corrosion resistance.
Read MoreThe material of the shell and the tube is AISI316 stainless steel [42] and HTF is the mineral oil [43, 44]. Their properties are listed in Table 2. Table 2. Numerical study on the performance of shell-and-tube thermal energy storage using multiple PCMs and gradient copper foam. Renew. Energy, 174 (2021), pp. 573-589.
Read MoreAbstract. A numerical investigation on Latent Heat Thermal Energy Storage System (LHTESS), based on a phase change material (PCM) partially filled with metal foam, is accomplished. The geometry of the system is a vertical shell and tube LHTES made with two concentric aluminum tubes with the internal tube corrugated. The
Read MoreIn this study, an innovative thermal energy storage design method was developed by adding the combination of metal foam and fin to phase change materials
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Read MoreShell-and-tube latent heat thermal energy storage units employ phase change materials to store and release heat at a nearly
Read MoreThis paper introduced a further heat transfer enhancement technique by inserting porous metal foam into the fin interstitials for a shell-and-tube thermal energy
Read MoreThe two-dimensional rotational axisymmetric schematic of a shell-and-tube thermal energy storage unit is shown in Fig. 1 consists of two copper tubes mounted concentrically with an outer radius of r o = 100 mm and an inner radius of r i = 17 mm. The thickness of the inner tube is 3 mm.
Read MoreThe 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 of the LHTES unit is modified with the elliptic inner tube with the
Read MoreMetals. Ultrasonic Metal Welding Evolves to Meet Energy Storage System Manufacturing Needs. Thanks to its use of high-frequency vibration and pressure to bond metals without melting, ultrasonic welding offers battery producers a promising alternative to traditional welding. Alex Yeung, Global Product Manager, Branson
Read MoreThey layered metal foam with different porosities in the horizontally shell-and-tube LHTESU. The results showed that the graded metal foam could further shorten the solidification and melting time. Wang et al. (2020b) verified the superiority of the radial graded metal foam in the shell-and-tube structure through the experimental method.
Read MoreMelting process of a phase change material using single and double elliptic charger applied in thermal storage for building application: A numerical study on effect of position and aspect ratio. Mohsen Izadi, Bader Alshuraiaan, Mikhail Sheremet, Ahmed M.
Read MoreIntroducing metal fins or foams can both enhance the performance of shell-and-tube phase change thermal energy storage (TES) devices, but the heat transfer mechanisms are different, i.e., heat transfer through a micro-liquid film, named close-contact melting (CCM) mode, brought by fins and reinforced-heat-conduction is triggered by foams.
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