Effect of Y-shaped fins on the performance of shell-and-tube thermal energy storage unit

Case Studies in Thermal Engineering, Год журнала: 2022, Номер 40, С. 102485 - 102485

Опубликована: Окт. 13, 2022

Phase change materials (PCMs) are well known for their inherent poor thermal characteristics, which consequently results in limited efficiency energy storage systems (TESS). The current work numerically attempts to improve the of TESS by employing Y-shaped fins with nano-enhanced PCM (NePCM). NePCM is contained inside cylindrical TESS, while water, as heat transfer fluid (HTF), pumped through inner pipes. Three different configurations were studied and compared; case 1: reference (with no fins), 2: two attached tubes, 3: four tubes. finite element method employed discretize system's governing equations. Besides influence configuration, impact HTF temperature (338 348 K) volume fraction nanoparticles (0–0.08) also addressed. evolution contours liquid three under temperatures discussed analyzed. findings revealed that using 8 vol% enhanced conductivity during melting 19%. process was accelerated 87% when higher (348 K). Finally, found be most effective it achieved a 48% time reduction compared base (case 1).

Язык: Английский

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Experimental study of heat transfer enhancement using metal foam partially filled with phase change material in a heat sink

Journal of Energy Storage, Год журнала: 2023, Номер 60, С. 106496 - 106496

Опубликована: Янв. 18, 2023

Язык: Английский

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The effect of conical shell and converging/diverging tube on the charging performance of shell and tube latent heat thermal energy storage system

Journal of Energy Storage, Год журнала: 2023, Номер 65, С. 107262 - 107262

Опубликована: Апрель 1, 2023

Язык: Английский

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Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Industrial & Engineering Chemistry Research, Год журнала: 2023, Номер 62(28), С. 10729 - 10786

Опубликована: Июль 3, 2023

Phase change is a phenomenon that has been extensively utilized in chemical engineering, energy, electronics, vehicle, and space exploration. From both the science engineering perspectives, gaining profound understanding of intricacies multiphase flow processes accompanied by heat mass transfer due to phase fundamental importance. Indeed, computational fluid dynamics (CFD) increasingly applied as an effective tool give in-depth efficient analysis processes, thereby enhancing our capacity control optimize effects these processes. This paper seeks provide comprehensive review utilization CFD methodologies simulations flows across various applications, including temperature management, drying, separation purification, others. First, models at scales are developed elucidate summarized. Second, noteworthy advances recent simulation work on presented, respectively. Finally, challenges potential prospects facilitate application discussed. The current aims offer insightful guidance for modeling numerous scenarios.

Язык: Английский

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Design and analysis of PCM integrated solar receiver with double-helical tube structure

Journal of Energy Storage, Год журнала: 2024, Номер 84, С. 110872 - 110872

Опубликована: Фев. 13, 2024

Язык: Английский

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A comparative analysis on charging performance of triplex-tube heat exchanger under various configurations of composite phase change material

Thermal Science and Engineering Progress, Год журнала: 2024, Номер 51, С. 102655 - 102655

Опубликована: Май 22, 2024

Язык: Английский

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Enhancement of phase change material melting using nanoparticles and magnetic field in the thermal energy storage system with strip fins

Journal of Energy Storage, Год журнала: 2022, Номер 57, С. 106282 - 106282

Опубликована: Дек. 2, 2022

Язык: Английский

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Simultaneous energy storage and recovery in triplex-tube heat exchanger using multiple phase change materials with nanoparticles

Journal of Energy Storage, Год журнала: 2022, Номер 49, С. 104164 - 104164

Опубликована: Фев. 8, 2022

Язык: Английский

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Solar Hot Water Systems Using Latent Heat Thermal Energy Storage: Perspectives and Challenges

Energies, Год журнала: 2023, Номер 16(4), С. 1969 - 1969

Опубликована: Фев. 16, 2023

Domestic water heating accounts for 15% to 27% of the total energy consumption in buildings Australia. Over past two decades, latent heat thermal storage (LHTES) system has been widely investigated as a way reduce fossil fuel and increase share renewable solar heating. However, research concentrated on geometric optimisation LHTES exchanger few years, this might not be sufficient commercialisation. Moreover, recent review papers mainly discussed development particular heat-transfer improvement technique. This paper presents perspectives various hot systems using shift focus on-demand performance studies, well structure studies faster Future challenges are also discussed. Since topic is an active area research, focuses references that showcase overall LHTES-assisted cannot include all published work discussion. perspective provides directional insights researchers developing energy-efficient LHTES.

Язык: Английский

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A feasibility study of a tube bundle exchanger with phase change materials: A case study

Journal of Building Engineering, Год журнала: 2023, Номер 78, С. 107622 - 107622

Опубликована: Авг. 22, 2023

Latent heat thermal storage offers a flexible service to members of district grid as the stored can be used reduce morning peak demand, limiting consequences for production facilities. This work investigates optimized design latent reactor, integrated in an existing building supplied by heating, demand-side management applications. The reactor was designed tube bundle exchanger which commercial-grade paraffin phase change material. variables that maximized use Phase Change Material were pitches and fin heights. integration with energy system required control prediction its state charge power output. These parameters are usually evaluated through 3D numerical dynamic simulations require large computational effort, is beyond capability basic microcontroller systems. A simplified parametric model has been overcome this issue. load-tracking algorithm embedded program. able 62 kWh from 6:00 9:00 a.m. Decreasing pitch 95 mm 82 led +34% increase PCM. Similar results obtained when height increased 20 32 mm. investigation suggest proposed could applied similar buildings fed heating network

Язык: Английский

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