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

Case Studies in Thermal Engineering, Год журнала: 2024, Номер 61, С. 104945 - 104945

Опубликована: Авг. 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

Язык: 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, Год журнала: 2024, Номер 257, С. 124433 - 124433

Опубликована: Сен. 19, 2024

Язык: Английский

Процитировано

13

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

и другие.

Journal of Energy Storage, Год журнала: 2025, Номер 118, С. 116200 - 116200

Опубликована: Март 18, 2025

Язык: Английский

Процитировано

0

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

и другие.

International Journal of Fatigue, Год журнала: 2025, Номер unknown, С. 108963 - 108963

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0

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

Xinyu Zhai,

Zeyu Xu, Wei Zhang

и другие.

Journal of Energy Storage, Год журнала: 2025, Номер 123, С. 116778 - 116778

Опубликована: Апрель 25, 2025

Язык: Английский

Процитировано

0

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

Case Studies in Thermal Engineering, Год журнала: 2024, Номер 61, С. 104945 - 104945

Опубликована: Авг. 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

Язык: Английский

Процитировано

1