Study on the Effect of Heat Transfer Characteristics of Energy Piles DOI Creative Commons
Xiaoyang Wang, Tongyu Xu,

Kaiming Zhao

et al.

Buildings, Journal Year: 2024, Volume and Issue: 14(11), P. 3593 - 3593

Published: Nov. 12, 2024

The thermal performance of energy piles equipped with new metal fins to improve heat transmission is examined in this research. solid transfer module COMSOL Multiphysics was used create a 2D numerical model the pile, utilizing pile at field test site Nanjing as an example. By contrasting experimental data, model’s correctness confirmed. After that, kind fin created pile. impact type on pile’s efficiency assessed, and temperature change within soil surrounding before after set by parameters pipe configuration, buried depth, concrete conductivity. results indicate that setting run for 336 h, area increases 10.8% 12.3%, region 5.3% 8.7% when tube diameter chosen be between 20 40 mm; maximize concrete, increases, drops. For h operation, may raised 12.3% are set, around can 8.7%. improved raising through increase concrete’s conductivity; however, degree improvement diminishes conductivity rises. It intended study will offer insightful information best way design efficiency.

Language: Английский

Performance Enhancement of a Shell-And-Coil Ice Storage Enclosure for Air Conditioning Using Spiral Longitudinal Fins: A Numerical Approach DOI Creative Commons

Masoud Izadi,

Farhad Afsharpanah,

Ali Mohadjer

et al.

Heliyon, Journal Year: 2025, Volume and Issue: 11(4), P. e42786 - e42786

Published: Feb. 1, 2025

Language: Английский

Citations

2
Impact of multi-tube configurations on pumping power and heat transfer rate at different orientations of latent heat thermal energy storage systems DOI

Ikhtedar Husain Rizvi,

Dibakar Rakshit,

B. Premachandran

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 114, P. 115753 - 115753

Published: Feb. 12, 2025

Language: Английский

Citations

1
Advanced thermal intermittency management using a multi-PCM double-fluid slab-finned heat exchanger: design, CFD modeling, and performance evaluation DOI

Saman Jalilian,

Amir Fartaj

Thermal Science and Engineering Progress, Journal Year: 2025, Volume and Issue: unknown, P. 103299 - 103299

Published: Jan. 1, 2025

Language: Английский

Citations

0
Thermal performance analysis of novel bionic fins in a concentric three-tube latent heat storage system DOI
Zhicheng Fang, Chuntian Zhao

Renewable Energy, Journal Year: 2025, Volume and Issue: 243, P. 122607 - 122607

Published: Feb. 4, 2025

Language: Английский

Citations

0
Influence of branch fin structure on melting performance of triplex-tube LHTES with eccentric inner tube DOI

Xiangqiang Kong,

Zequn Wang,

Junhao Xing

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 114, P. 115880 - 115880

Published: Feb. 18, 2025

Language: Английский

Citations

0
Improving charging and discharging times in a latent heat storage using circumferential fins: A numerical study DOI
Hamid Reza Talesh Bahrami,

Omid Allahdadi,

Mahziyar Ghaedi

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 115, P. 115918 - 115918

Published: Feb. 27, 2025

Language: Английский

Citations

0
Enhancing double-tube thermal energy storage during solidification process: Effects of inner tube aspect ratio and its positioning DOI

Mahdy Elsayed,

Theyab R. Alsenani, Nehad Ali Shah

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 117, P. 116174 - 116174

Published: March 15, 2025

Language: Английский

Citations

0
Multi-Objective Optimization Research Based on NSGA-II and Experimental Study of Triplex-Tube Phase Change Thermal Energy Storage System DOI Creative Commons
Yi Zhang, Haoran Yu, Yingzhen Hou

et al.

Energies, Journal Year: 2025, Volume and Issue: 18(8), P. 2129 - 2129

Published: April 21, 2025

Energy storage technology is crucial for promoting the replacement of traditional energy with renewable and regulating supply–demand relationship. This paper investigates a triplex-tube thermal unit to solve intermediate heat transfer problem hot water supply demand in clean heating systems. A multi-objective optimization method based on elitist non-dominated sorting genetic algorithm (NSGA-II) was utilized optimize geometric dimensions (inner tube radius r1, casing r2, outer r3), focusing efficiency (ε), rate (Pt), mass (M). On this basis, influence variables analyzed. The optimized configuration (r1=0.014 m, r2=0.041 r3=0.052 m) integrated into modular design, achieving 2.12% improvement 73.23% increase rate. Experimental results revealed that higher fluid (HTF) temperatures significantly reduce time, while HTF flow has minimal impact. Increasing release temperature extends phase change material (PCM) duration, showing negligible effects. system’s capacity susceptible temperature.

Language: Английский

Citations

0
Comparative Analysis of Heat Exchanger Models for Phase Change Material Melting Process: Experimental and Numerical Investigation DOI Open Access

Hussein Hatem Saleh,

Munther Abdullah Mussa

Heat Transfer, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 11, 2024

ABSTRACT Thermal energy storage systems using PCM offer promising solutions for efficient thermal applications. This study aims to provide valuable insights into the melting process and compare performance of different heat exchanger models. The experimental rig is carefully designed simulate a shell tube with five longitudinal copper fins at specific conditions. Three distinct models exchanger, labeled Models A, B, C, were examined their transfer efficiency during process. Numerical simulations conducted three compared results. Model A represented benchmark model. It had uniform fin length, location, angle. B was modified design aimed enhancing progress. These modifications included longer lower fin, shorter side reference, angle optimize performance. C incorporates further modifications, top location. observations revealed significant differences in among average rates, measured up critical decline point, are crucial parameters practical comparison showed that surpassed rate point by 10% 4%, respectively, demonstrating its superior applicability.

Language: Английский

Citations

0
Study on the Effect of Heat Transfer Characteristics of Energy Piles DOI Creative Commons
Xiaoyang Wang, Tongyu Xu,

Kaiming Zhao

et al.

Buildings, Journal Year: 2024, Volume and Issue: 14(11), P. 3593 - 3593

Published: Nov. 12, 2024

The thermal performance of energy piles equipped with new metal fins to improve heat transmission is examined in this research. solid transfer module COMSOL Multiphysics was used create a 2D numerical model the pile, utilizing pile at field test site Nanjing as an example. By contrasting experimental data, model’s correctness confirmed. After that, kind fin created pile. impact type on pile’s efficiency assessed, and temperature change within soil surrounding before after set by parameters pipe configuration, buried depth, concrete conductivity. results indicate that setting run for 336 h, area increases 10.8% 12.3%, region 5.3% 8.7% when tube diameter chosen be between 20 40 mm; maximize concrete, increases, drops. For h operation, may raised 12.3% are set, around can 8.7%. improved raising through increase concrete’s conductivity; however, degree improvement diminishes conductivity rises. It intended study will offer insightful information best way design efficiency.

Language: Английский

Citations

0