Flow Characteristics and Heat Transfer Performance in Tubes with Dimples-protrusions DOI Creative Commons
Wenling Liao, Zhengbiao Jing

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 61, P. 104945 - 104945

Published: Aug. 6, 2024

Dimple and protrusion are microstructures processed on the surface of heat transfer tubes to improve thermal-hydraulic performance (THP). However, effect mechanism composite structures composed dimples protrusions (dimples-protrusions) THP still unclear. In this work, with simple (DT-SC) different cross-section dimples-protrusions (DT-RRRS, DT-RCRS, DT-RTRS) chosen explore impact compared dimples. Various parameters, such as velocity, three-dimensional streamline, pressure, etc., used reveal influence THP. The research presents that can intensity fluid impinges wall expand area secondary flow dimples, resulting in a significant increase PEC DT-RRRS is increased by 7.9 % DT-RS at Re = 5000. addition, cross-sections have effects due differences distribution impingement wall. depth closely related Re. DT-RCRS achieve maximum 1.38 under conditions 5,000, H1 2 mm, H2 1 mm. This work provides reference for design optimal

Language: Английский

Numerical investigation of performance enhancement in a PCM-based thermal energy storage system using stair-shaped fins and nanoparticles DOI
Poorya Shahamat, Zahra Mehrdoost

Applied Thermal Engineering, Journal Year: 2024, Volume and Issue: 257, P. 124433 - 124433

Published: Sept. 19, 2024

Language: Английский

Citations

13
Synergistic effects of graphene nanoplatelets and carbon nanofibers on thermomechanical fatigue response of modified glass/epoxy composites DOI
Jafar Amraei, Tomasz Rogala, Andrzej Katunin

et al.

International Journal of Fatigue, Journal Year: 2025, Volume and Issue: unknown, P. 108963 - 108963

Published: March 1, 2025

Language: Английский

Citations

0
Phase change thermal energy storage: Materials and heat transfer enhancement methods DOI

Xinyu Zhai,

Zeyu Xu, Wei Zhang

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 123, P. 116778 - 116778

Published: April 25, 2025

Language: Английский

Citations

0
Coupling effects, regulation mechanisms and applications of thermal-fluid-magnetic in composite phase change systems: A comprehensive review DOI
Zihao Huang, Jing‐Chun Feng, Yijie Zhuang

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 118, P. 116200 - 116200

Published: March 18, 2025

Language: Английский

Citations

0
Flow Characteristics and Heat Transfer Performance in Tubes with Dimples-protrusions DOI Creative Commons
Wenling Liao, Zhengbiao Jing

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 61, P. 104945 - 104945

Published: Aug. 6, 2024

Dimple and protrusion are microstructures processed on the surface of heat transfer tubes to improve thermal-hydraulic performance (THP). However, effect mechanism composite structures composed dimples protrusions (dimples-protrusions) THP still unclear. In this work, with simple (DT-SC) different cross-section dimples-protrusions (DT-RRRS, DT-RCRS, DT-RTRS) chosen explore impact compared dimples. Various parameters, such as velocity, three-dimensional streamline, pressure, etc., used reveal influence THP. The research presents that can intensity fluid impinges wall expand area secondary flow dimples, resulting in a significant increase PEC DT-RRRS is increased by 7.9 % DT-RS at Re = 5000. addition, cross-sections have effects due differences distribution impingement wall. depth closely related Re. DT-RCRS achieve maximum 1.38 under conditions 5,000, H1 2 mm, H2 1 mm. This work provides reference for design optimal

Language: Английский

Citations

0