Study of the melting performance of shell-and-tube latent heat thermal energy storage unit under the action of rotating finned tube …
The thermal energy storage rate (TESR) can be increased by 79.02% after raising the rotational speed of the finned tube from 0 rpm to 16 rpm. In addition, increasing the fin number allows the finned tube to start rotating at an earlier stage.
Latent heat thermal energy storage in a shell-tube design: Impact …
Using a shell-tube shape, Fig. 2 depicts the design of a Latent Heat Thermal Energy Storage (LHTES) device. The heat transfer fluid, water, enters the tube at a pressure of P in and leaves at the top outlet at zero pressure. The wall thickness of the tube is t, and its ...
Numerical investigation of a thermal energy storage system based on the serpentine tube …
Discharging behavior of a shell-and-tube based thermochemical reactor for thermal energy storage: modeling and experimental validation Int. J. Heat Mass Transf., 183 ( 2022 ), 10.1016/j.ijheatmasstransfer.2021.122160
Charging characteristics of finned thermal energy storage tube …
Thermal energy storage (TES) tanks of PVT systems with high charging efficiency and consistent thermal safety might achieve efficient utilization of solar energy for building. A new variable rotational strategy has been proposed to optimize the charging characteristics for TES tubes, taking into consideration the non-uniformity of melting.
Melting assessment on the angled fin design for a novel latent heat thermal energy storage tube …
Fig. 1 (a) depicted the design concept for the shell-and-tube LHTES tank concerning solar thermal engineering applications. A bundle of tubes with annular fins attached were inserted in the LHTES tank. To highlight the inner structure of the LHTES tank, Fig. 1 (b) described schematically the physical model for the LHTES unit, where fins …
Advances in thermal energy storage: Fundamentals and …
Even though each thermal energy source has its specific context, TES is a critical function that enables energy conservation across all main thermal energy sources [5]. In Europe, it has been predicted that over 1.4 × 10 15 Wh/year can be stored, and 4 × 10 11 kg of CO 2 releases are prevented in buildings and manufacturing areas by extensive …
Enhanced heat transfer in a PCM shell-and-tube thermal energy storage …
The PCM thickness was determined by the shell-to-tube diameter ratio. In work by Kalapala and Devanuri [24], values from 3.5 to 4 were reported to be the best ratio to obtain maximum energy storage density and short melting time. The shell-to-tube ratio for M01, M02, M03, M05, and M08 was constant and equal to 3.47.
Thermal cycling performance of a Shell-and-tube latent heat thermal energy storage …
Optimization on the melting performance of triplex-layer PCMs in a horizontal finned shell and tube thermal energy storage unit Appl. Therm. Eng., 176 (2020), Article 115409, 10.1016/j. applthermaleng.2020.115409 View PDF View article View in Scopus [17] ...
Experimental study of thermal energy storage characteristics of a paraffin in a horizontal tube-in-shell storage …
In this study, the latent heat thermal energy storage system of the horizontal shell-and-tube type is experimentally analyzed. Paraffin is used as the phase change material (PCM) while the distilled water is used as the HTF. At first, the thermo-physical properties of ...
Performance optimization for shell-and-tube PCM thermal energy storage …
To study the effect of inner tube diameter on the energy storage effectiveness, 9 parametric studies with di varying from 2mm to 10mm were performed. The effective thermal conductivity was kept as k eff = 4 W / ( m · K). The outer tube diameter was d o = 12 mm and the tube length was L = 5 m.
Effects of fluctuating thermal sources on a shell-and-tube latent thermal energy storage during charging process …
The fluctuating and intermittent nature of industrial heat sources is a crucial technical barrier limiting the implementation of heat recovery energy systems.Latent Thermal Energy Storage (LTES) has the potential to overcome these issues by maintaining a Waste Heat Recovery (WHR) system within designed operation conditions to achieve …
Effect of fin-metal foam structure on thermal energy storage: An experimental study …
Thermal performance of a shell-and-tube latent heat thermal energy storage unit: role of annular fins Appl. Energy, 202 ( 2017 ), pp. 558 - 570 View PDF View article View in Scopus Google Scholar
Experimental and numerical investigation of thermal energy storage with a finned tube
A latent heat thermal energy storage system using a phase change material (PCM) is an efficient way of storing or releasing a large amount of heat during melting or solidification. It has been determined that the shell-and-tube type heat exchanger is the most promising device as a latent heat system that requires high efficiency for a …
Optimum design of a horizontal shell-and-tube latent heat thermal energy storage …
It mainly contains sensible heat thermal energy storage [1], latent heat thermal energy storage (LHTES) [2], and chemical energy storage [3]. In the three types, LHTES units are the key to solving the contradiction in practical thermal systems because of their superiorities of larger thermal storage density, stable thermodynamic performance, …
(PDF) Experimental analysis of shell and tube thermal energy storage system with finned tube …
temperature shell and tube latent heat thermal storage system for solar thermal power plants, Renewable energy, 96 2016, 120-136. Velraj R, Seeniraj RV, Hafner B, Faber C, Schwarzer K ...
Applied Sciences | Free Full-Text | Shell-and-Tube …
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 …
Numerical investigation on the heat transfer enhancement of a latent heat thermal energy storage system with bundled tube structures …
Experimental study of thermal energy storage characteristics of a paraffin in a horizontal tube-in-shell storage unit Energy Convers. Manage., 73 ( 2013 ), pp. 271 - 277, 10.1016/j.enconman.2013.04.030
Experimental and numerical investigation of thermal energy …
In this study, energy storage by phase change around a radially finned tube is investigated numerically and experimentally. The solution of the system consists …
Latent heat thermal energy storage in a shell-tube: A wavy partial …
Section snippets Physical model A schematic view of a shell-tube latent heat thermal energy storage unit is depicted in Fig. 1. As seen, a bundle of tubes is packed inside a shell enclosure. Inside, the enclosure is filled with …
Transient Thermo-mechanical analysis of a shell and tube latent heat thermal energy storage …
The structural integrity of a lab-scale shell and tube latent heat thermal energy storage under transient conditions was investigated. The system was designed to use sodium at 750 °C as a heat transfer fluid with a high temperature phase change material, melting at 705.8 °C, as the heat storage medium.
Thermal performance of a novel dual-PCM latent thermal energy storage unit with an inner spiral coil tube …
Compared with the straight tube design, the spiral coil thermal energy storage unit has a compact size and larger heat transfer surface because of the multiple turns of spiral coils. Studies of spiral coil LTES units have attracted increasing interest due to a desire to improve thermal performance[[8], [9], [10]].
Thermal energy storage performance of paraffin in a novel tube-in …
Thermal energy storage performance of paraffin in a novel tube-in-shell system. Mithat Akgün, O. Aydin, K. Kaygusuz. Published 1 April 2008. Materials Science, Engineering. Applied Thermal Engineering. View via Publisher. Save to Library. Create Alert. Cite.
Thermal storage performance of a novel shell-and-tube latent …
This study presents a numerical analysis of the melting process in a shell-and-tube latent heat thermal energy storage (LHTES) system, featuring a twisted …
Improvement of the thermal performance of a solar triple concentric-tube thermal energy storage …
The temporal evolution of the sensible thermal energy charged in the triple concentric-tube storage units filled with cascaded PCMs and single-PCM is shown in Fig. 14. The behavior of the sensitive thermal energy charged in the two storage units goes through three distinct stages.
Experimental study on discharging performance of vertical multitube shell and tube latent heat thermal energy storage …
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 …
Enhancing Heat Transfer and Energy Storage Performance of …
The present study is helpful to make further efforts to enhance heat transfer and energy storage of shell-and-tube latent heat thermal energy storage unit with …
