Enhancing thermal performance in shell-and-tube latent heat thermal energy storage units: An experimental and numerical study of shell geometry effects

International Communications in Heat and Mass Transfer, Journal Year: 2024, Volume and Issue: 154, P. 107398 - 107398

Published: March 19, 2024

This study investigates the influence of shell geometry on thermal performance latent heat storage (LHS) units. Three transparent shell-and-tube LHS units, featuring circular, horizontal, and vertical obround geometries, each possessing a similar volume, were fabricated filled with paraffin as phase change material (PCM). Employing combination visualization experiments numerical simulations, units horizontally vertically oriented geometries was comprehensively analyzed compared conventional circular exchangers (HX), commonly utilized in industry. Data derived from image processing photographs, coupled recorded temperatures, used to calculate liquid fractions, analyze transfer characteristics, ascertain dominant mechanisms during melting process. The results reveal that utilization horizontal enhances rate, thereby expediting A comparative analysis photographs demonstrates reduces time by 32% shell, while extends total 13%. In contrast exhibits substantial improvement 41% time-averaged whereas shows decrease 12%.

Language: Английский

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Experimental investigation on phase change material–based finned tube heat exchanger for thermal energy storage and building envelope thermal management

Applied Thermal Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 126490 - 126490

Published: April 1, 2025

Language: Английский

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Energy and exergy analysis of a multipass macro-encapsulated phase change material/expanded graphite composite thermal energy storage for domestic hot water applications

Energy Conversion and Management X, Journal Year: 2024, Volume and Issue: 24, P. 100788 - 100788

Published: Oct. 1, 2024

Language: Английский

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Optimizing and investigating the charging time of phase change materials in a compact-latent heat storage using pareto front analysis, artificial neural networks, and numerical simulations

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 102, P. 113966 - 113966

Published: Oct. 5, 2024

Language: Английский

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Finless intestine-mimic devices for high power density and high energy density latent heat storage

Applied Energy, Journal Year: 2025, Volume and Issue: 382, P. 125309 - 125309

Published: Jan. 10, 2025

Language: Английский

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Flow and heat transfer characteristics of a new coke oven gas ascension pipe heat exchanger: Experimental validation and numerical study

Thermal Science and Engineering Progress, Journal Year: 2025, Volume and Issue: unknown, P. 103386 - 103386

Published: Feb. 1, 2025

Language: Английский

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Impact of operational and geometrical parameters on free convective flow of magnetized nanoencapsulated phase change materials nanofluid over a wedge

The European Physical Journal Plus, Journal Year: 2025, Volume and Issue: 140(5)

Published: May 12, 2025

Language: Английский

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Experimental study on heat transfer performance of latent heat storage system with phase change material coupled with 3-D finned tube

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 128, P. 117158 - 117158

Published: May 26, 2025

Language: Английский

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Experimental and numerical investigation of thermal performance enhancement in shell-and-tube latent heat storage systems: effects of fins, eccentricity, and shell geometry

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 128, P. 117159 - 117159

Published: May 26, 2025

Language: Английский

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Optimized thermal storage in a heat exchanger with paraffin nano enhanced PCM and rectangular fins

Advances in Mechanical Engineering, Journal Year: 2025, Volume and Issue: 17(5)

Published: May 1, 2025

This research paper examines the melting process of a nano enhanced phase change material (nePCM) based on paraffin wax and alumina nanoparticles in an insulated heat exchanger consisting heated double inner tubes, surrounded by nePCM that stores acquired latent thermal energy melts. The article investigates factors directly influence efficiency this system, for instance, fins emplacement, along with volume fraction 2% ≤ φ 6% their impact process, temperature distribution, as well stored. Through program Finite Element Method, four different structures are considered to assess performance. results demonstrate importance fin location, especially central region exchanger. As distribution predominantly shifts toward system’s surface around heating strategically arranging between these tubes becomes critical optimal Notably, utilization continuously connected system (configuration c) has shown be highly efficient improving transfer, yielding rapid optimized storage, followed performance configuration (d) inclined discontinuous fins, particularly at = 4%, considering it concentration nanoparticles.

Language: Английский

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