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Investigation of the effects of shell geometry and tube

Energy storage systems are considered a critical solution to answering this intermittency. Latent Heat Storage (LHS) systems have been recognized as promising technologies due to their high energy storage capacity in an isothermal condition at a wide range of temperatures [1], [2]. LHS systems are relied on the effective usage of phase change

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Design and operating evaluation of a finned shell-and-tube

DOI: 10.1016/j.apenergy.2019.114385 Corpus ID: 213062895; Design and operating evaluation of a finned shell-and-tube thermal energy storage unit filled with metal foam @article{Yang2020DesignAO, title={Design and operating evaluation of a finned shell-and-tube thermal energy storage unit filled with metal foam}, author={Xiaohu Yang and Jiabang Yu and

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Cyclic performance of cascaded and multi-layered solid-PCM shell

Liu et al. [28] investigated the cascaded U-tube, shell-and-tube TES system for a CSP-tower plant application by considering three PCMs with melting points ranging from 430 to 550 °C. It was demonstrated that increasing the number of PCM systems in series increases the effectiveness of the extracted sensible energy storage.

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Performance evaluation of novel tapered shell and tube cascaded

However, the shell and tube TES unit gained a competitive edge storing with higher capacity in terms of the mass of PCM and energy storage. Besides, cylindrical, shell, and tube configuration has a profound impact on the heat transfer exchange during melting (Vyshak and Jilani, 2007, Zivkovic and Fujii, 2001).

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Thermal Energy Storage with PCMs in Shell-and-Tube Units: A

The paper presents a survey of the experimental and numerical studies of shell-and-tube systems in which phase change material (PCM) is used. Due to the multitude of design solutions for shell-and-tube systems, the emphasis is placed on double-tube (DT), triplex-tube (TT), and multi-tube (MT) units. Additionally, only single-pass systems are considered.

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Multiple-segment metal foam application in the shell-and-tube

A 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 occupies the annulus

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Evaluation of different melting performance enhancement

A review of performance investigation and enhancement of shell and tube thermal energy storage device containing molten salt based phase change materials for medium and high temperature applications. Appl. Energy, 255 (2019), p. 113806. View PDF View article View in Scopus Google Scholar [2]

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Effect of fin number on the melting phase change in a horizontal finned

Solidification in a shell-and-tube thermal energy storage unit filled with longitude fins and metal foam: a numerical study. Energy Built Environ. (2021) Google Scholar [38] K.A.R. Ismail, F.A.M. Lino. Fins and turbulence promoters for heat transfer enhancement in latent heat storage systems.

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Numerical investigation of the effect of the number of fins on the

The current study concentrated on how the number of fins can affect the PCM melting in a shell-and-tube thermal energy storage system. A PCM of the Rubitherm RT42 type filled the outer tube and sent hot water (340 K) into the inner tube to provide heat. In this regard, the study introduced three cases: one without fins, one with four fins, and

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Effects of fluctuating thermal sources on a shell-and-tube

Therefore, in this study, the heat transfer process and energy storage performance of a shell-and-tube LTES heated by sinusoidal inlet temperature are investigated. In detail, the effects of different period and amplitude, as well as the Stefan number are analysed based on CFD simulations.

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Optimization of shell and tube thermal energy storage unit

The 3-D scheme of the combination model of shell and tube LHTES system is indicated in Fig. 1 d. The finned model, by adding 6 fins to the simple model (a to b), adding nanoparticles, with changing the color in the shell side (b to c) and the rotational mechanism, by located two bearings on the tube''s path (c to d), are shown in this picture.

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Design and optimization of a bionic-lotus root inspired shell-and-tube

Thermal energy storage (TES) is crucial in the efficient utilization and stable supply of renewable energy. This study aims to enhance the performance of shell-and-tube latent heat thermal energy storage (LHTES) units, particularly addressing the issue of the significant melting dead zones at the bottom, which are responsible for the long charging time.

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A comparative study on the performances of different shell-and-tube

The physical models of two shell-and-tube LHTES units are shown in Fig. 1.The length of the pipe and cylinder models (L p /L c) is 500 mm, and the radii of the inner and outer tubes are 10 mm and 14.14 mm (R o = 2 R i), respectively.The thickness of the tube walls is neglected, which can satisfy the same volume/mass of PCM and heat transfer area.

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Enhancing the thermal performance of PCM in a shell and tube

The main obstacle of the PCMs which restricts their usage for thermal energy storage (TES) applications is their poor thermal conductivity. Utilizing metal fins is the most popular solution to enhance the performance of PCM-TES. In this work, PCM thermal performance enhancement in a shell and tube heat exchanger (STHX) was numerically

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Experimental investigation of thermal performance in a shell-and-tube

Experimental investigations of phase change processes in a shell-and-tube latent heat thermal energy storage unit with an inner square tube were carried out. Paraffin OP44E was selected as a phase change material, and the water heated or cooled by constant temperature water tanks flowed into the inner square tube as the heat transfer fluid.

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Comparative study between heat pipe and shell-and-tube thermal energy

1. Introduction. Thermal processes can be improved by using thermal energy storage (TES) systems in several ways. They allow to take advantage of waste heat, to work as a thermal shock absorber protecting the device, or to solve the mismatch between the energy supply and demand, the latter helps to integrate renewable energies [1].Among the different

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Optimization of shell and tube thermal energy storage unit

According to the high storage capacity of latent heat thermal energy storage (LHTES) systems, finding a suitable solution to compensate for the weakness of these systems is logical. The main weakness of these systems is the low thermal conductivity of phase change materials (PCMs) as the storage reservoir of thermal energy. Many methods have been

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Comparative investigation of charging performance in shell and tube

Fig. 1 shows the physical layout of the shell and tube thermal energy storage device investigated in this work. The device is horizontally placed and the PCM is accommodated in the annulus between the shell and tube. The radiuses of the internal tube and external shell are respectively set as 25 mm and 75 mm. All tubes are made of stainless

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Experimental investigation of the effect of perforated fins on

The continuous increase in energy demand and global warming due to the greenhouse gas emissions have motivated intensive research for efficient use of energy and development of energy storage systems [1].Thermal energy storage (TES) which stores heat in a material and releases it when it is needed is one of the efficient techniques to reduce the gap

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Investigation Performance of Shell-and-Tube Heat Exchangers in

This study investigates a storage system that incorporates a thermal energy storage volume of the regenerator type. The storage volume is coupled to a heat exchanger through the use of a flowing intermediate operating fluid. Wang, X., Cao, F., Taylor, R.A.: Comparison of heat transfer between cylindrical and conical vertical shell-and-tube

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Enhancement of melting performance in a shell and tube thermal energy

The melting performance enhancement in a shell and tube thermal energy storage device containing different structures and materials was investigated in this study. Four different enhanced configurations including topology optimized fin, metal foam, longitudinal fin and composite PCM were evaluated and compared numerically.

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Numerical Thermal Analysis of Shell-and-Tube Thermal Energy Storage

The shell-and-tube thermal energy storage (TES) system is a widely used method for the storage of thermal energy in engineering applications. Nevertheless, the use of molten salt as a phase change material (PCM) in a shell-and-tube thermal energy storage (TES) system presents a challenge due to its relatively poor thermal conductivity.

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Design of non-uniformly distributed annular fins for a shell-and-tube

To improve the energy storage efficiency for a shell-and-tube heat exchanger, the following issues can be augmented, such as inlet temperature [9], mass flow rate [10], tube radius [11], tube eccentricity [12] and etc. It has been proved by the previous studies [11] that the inlet temperature of HTF and tube radius had more important influence on heat transfer than

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Experimental study on discharging performance of vertical multitube

Kibria et al. [18] studied shell and tube based thermal energy storage system numerically as well as experimentally using paraffin wax (melting temperature: 61 °C) and water as PCM and HTF, respectively. The experimental results were used to validate the numerical model. Thermal performance of the TES was evaluated considering mass flow rate

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About Shell and tube energy storage

About Shell and tube energy storage

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6 FAQs about [Shell and tube energy storage]

How does a shell-and-tube thermal energy storage unit work?

Author to whom correspondence should be addressed. Shell-and-tube latent heat thermal energy storage units employ phase change materials to store and release heat at a nearly constant temperature, deliver high effectiveness of heat transfer, as well as high charging/discharging power.

Can fins enhance thermal performance of shell-and-tube latent heat thermal energy storage unit?

Previous studies in literatures adequately emphasized that inserting fins into phase change material is among the most promising techniques to augment thermal performance of shell-and-tube latent heat thermal energy storage unit.

What is thermal energy storage in rock mass?

Seasonal thermal energy storage in rock mass (Borehole Thermal Energy Storage — BTES) is another promising technology , . Regarding Latent Heat Thermal Energy Storage (LHTES) methods, the dominant technology lies in solid–liquid Phase Change Material (PCM) .

Can double-tube thermal energy storage units reduce PCM melting time?

This limits energy storage availability, hence there are many enhanced heat transfer techniques. The authors proposed new double-tube latent heat thermal energy storage units (M04, M05 and M06) that combine the features of different techniques to reduce PCM melting time and subsequently improving the energy storage availability.

What is thermal energy storage?

The dominant technology amongst sensible heat energy storage methods is Tank Thermal Energy Storage (TTES) where water is used as a storage medium . Seasonal thermal energy storage in rock mass (Borehole Thermal Energy Storage — BTES) is another promising technology , .

What are the different types of thermal energy storage?

Based on the storage principle, thermal energy storage can be classified as: (i) sensible heat thermal energy storage (SHTES), (ii) latent heat thermal energy storage (LHTES) and (iii) thermo-chemical energy storage system (TCES).

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