Numerical study of the improvement of an indirect contact mobilized thermal energy storage container

Guo, Shu-Guang; Zhao, Jianlin; Wang, Weilong; Yan, Jinyue; Jin, Guang; Zhang, Zhe; Gu, Jie; Niu, Yonghong

doi:10.1016/j.apenergy.2015.10.032

Cited by 48 publications

(6 citation statements)

References 30 publications

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“…As can be seen in Figure 5, the PCM melts very slowly at the bottom of the container near the wall. The literature [25] gives the same results. The arrangement of the tube bundle in their paper is uniformly arranged, so in this paper, we will try to investigate non-uniform arrangement.…”

Section: Effect Of the Tube Bundle Layout For The Shell And Tube Type...supporting

confidence: 74%

“…Guo et al [25] investigated the effect of the number of straight fins on the heat charging and discharging efficiency. Higher heat transfer efficiency can be achieved by adding four straight fins on each heat exchanger tube.…”

Section: Effect Of Adding Fins For the Shell And Tube Type M-tes Cont...mentioning

confidence: 99%

“…In order to shorten charging and discharging periods, several scholars have studied the charging and discharging thermal performance of the shell and tube type M-TES containers. Guo et al [25] numerically predicted the performance of a shell and tube type M-TES container from charging to discharging using a simplified 2D model. Their conclusion shows that the charging and discharging periods for indirect-contact M-TES containers can be shortened by up to 74% and 67%, respectively.…”

Section: Introductionmentioning

confidence: 99%

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Numerical Simulation of an Indirect Contact Mobilized Thermal Energy Storage Container with Different Tube Bundle Layout and Fin Structure

et al. 2023

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The great development of energy storage technology and energy storage materials will make an important contribution to energy saving, reducing emissions and improving energy utilization efficiency. Mobile thermal energy storage (M-TES) technology finds a way to realize value for low-grade heat sources far beyond the demand side. In this paper, an indirect-contact M-TES container is studied using the computational fluid dynamics (CFD) method. By optimizing the heat exchange tube bundle layout and the installed fin structure of the shell and tube type M-TES container, a method of enhancing the charging and discharging efficiency is identified. The peripheral distribution mode of the heat exchanger tubes improves the efficiency of heat charging by 12.6% compared with the traditional uniform layout. The installation of the Y-shaped fins can improve the heat charging efficiency by 8.3%, better than straight fins. Compared with the horizontal installation of Y-shaped fins, the vertical installation of Y-shaped fins is preferred to improve the heat charging efficiency of the M-TES container.

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Section: Effect Of the Tube Bundle Layout For The Shell And Tube Type...supporting

confidence: 74%

Section: Effect Of Adding Fins For the Shell And Tube Type M-tes Cont...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Numerical Simulation of an Indirect Contact Mobilized Thermal Energy Storage Container with Different Tube Bundle Layout and Fin Structure

et al. 2023

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“…To perform the calculations, the physical properties of the selected phase-change material erythritol must be determined. Table 1 provides a comprehensive overview of the thermal and physical attributes associated with the utilization of erythritol, which serve as the foundational basis for the computational assessments conducted herein [22,[24][25][26]. In this paper, the calculations are performed using ANSYS Fluent 2022 software, applying the aforementioned mathematical model and boundary conditions.…”

Section: Calculation Conditions and Calculation Methodsmentioning

confidence: 99%

Numerical Simulation and Optimization of a Phase-Change Energy Storage Box in a Modular Mobile Thermal Energy Supply System

Kang,

Tan,

Zhou

et al. 2023

Sustainability

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Featuring phase-change energy storage, a mobile thermal energy supply system (M-TES) demonstrates remarkable waste heat transfer capabilities across various spatial scales and temporal durations, thereby effectively optimizing the localized energy distribution structure—a pivotal contribution to the attainment of objectives such as “carbon peak” and “carbon neutral”. To heighten the efficiency of energy transfer for mobile heating, this research introduces the innovative concept of modular storage and transportation. This concept is brought to life through the development of a meticulously designed modular mobile phase-change energy storage compartment system. Employing computational fluid dynamics (CFD), an in-depth exploration into the performance of the modular M-TES container and the adapted phase-change material (PCM) is conducted. By implementing fin arrangements on the inner wall of the heat storage module, a remarkable upsurge in the liquid phase-transition rate of the phase-change material is achieved in comparison to the design lacking fins—this improvement approximating around 30%. However, it is essential to acknowledge that the augmentation in heat transfer gradually recedes with the proliferation of fins or an escalation in their height. Moreover, the integration of expanded graphite into erythritol emerges as profoundly effective in amplifying the thermal conductivity of the PCM. Notably, with the addition of a 15.2% volume fraction of expanded graphite to erythritol, the duration of heat storage experiences a drastic reduction to nearly 10% of its original duration, thereby signifying a momentous advancement in thermal performance.

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“…Shaopeng Guo et al [44] referred, in their work, to the research presented in [34]. The authors developed a two-dimensional numerical simulation model in ANSYS FLUENT to analyze and improve the charging performance of the direct contact M-TES system.…”

Section: Mobilized Thermal Energy Storage-state Of the Artmentioning

confidence: 99%

Mobilized Thermal Energy Storage for Waste Heat Recovery and Utilization-Discussion on Crucial Technology Aspects

Kuta

2022

Energies

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Changes observed in the Polish energy sector, including the demand for and use of heat, require the introduction of appropriate measures aimed at diversifying the available heat sources, increasing the share of renewable and low-emission sources in heat production, and increasing waste heat recovery and its usage. There is an increasing emphasis on issues such as reducing the carbon footprint, reducing pollution, reducing the use of raw materials, reducing waste heat, and improving the energy efficiency of businesses. Increasingly, the question arises—what technologies can be used as an answer to the identified problems and needs. The solution proposed in this publication to support these needs is the use of mobilized thermal energy storage (M-TES) technology. The use of this technology has great potential, but also involves a number of conditions that need to be taken into account when undertaking the design, construction, and use of this type of technology. The primary purpose of this publication is to provide a detailed description of mobilized thermal energy storage technology, together with a discussion of the various practical aspects associated with the design and use of M-TES. Technology was discussed both in terms of application, but also in terms of specific areas. In the first case—step-by-step, from the design stage to the end-of-life stage. In the second case—one area at a time, including: technical, legal, economic, and environmental. The discussion of the technology is preceded by an analysis of the existing solutions presented in this area. The state-of-the-art shows that, despite the growing interest in the subject, there are still a small number of solutions in this area that have been implemented and are in use. The conducted analysis shows that M-TES is a solution with great potential. However, it is necessary to develop it, especially in the technological, as well as economical, areas.

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Numerical study of the improvement of an indirect contact mobilized thermal energy storage container

Cited by 48 publications

References 30 publications

Numerical Simulation of an Indirect Contact Mobilized Thermal Energy Storage Container with Different Tube Bundle Layout and Fin Structure

Numerical Simulation of an Indirect Contact Mobilized Thermal Energy Storage Container with Different Tube Bundle Layout and Fin Structure

Numerical Simulation and Optimization of a Phase-Change Energy Storage Box in a Modular Mobile Thermal Energy Supply System

Mobilized Thermal Energy Storage for Waste Heat Recovery and Utilization-Discussion on Crucial Technology Aspects

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