Turbulent thermal-hydraulic characteristics in a spiral corrugated waste heat recovery heat exchanger with perforated multiple twisted tapes

Y Hong, L Zhao, Y Huang, Q Li, J Jiang, J Du - International Journal of …, 2023 - Elsevier
Waste heat recovery technology can undoubtedly improve energy saving and reduce
carbon emissions, as one of the key equipment, heat exchangers always determine the …

Optimization of design parameter of V-shaped perforated blocks in rectangular duct of solar air heater by using hybrid BWM-CODAS technique

R Khargotra, T Alam, K Thu, K András… - Solar Energy Materials and …, 2024 - Elsevier
This study investigates the influence of different functional parameters of V-SP blocks on
flow characteristics and heat enhancement in a rectangular duct via experimental analysis …

Thermal performance and exergy analysis in a round tube with louvered trapezoidal winglets

P Promvonge, S Eiamsa-ard, S Skullong… - International Journal of …, 2023 - Elsevier
An experiment was performed to investigate the influence of inserting a louver-punched
trapezoidal-winglet (LPTW) into a uniform heat-fluxed tube in order to create a longitudinal …

Heat transfer enhancement for spiral finned tubes with triangular winglets

M Yuan, G Liu, X Zhang, W Zhang, Y Yang… - International Journal of …, 2023 - Elsevier
Spiral finned tube (SFT) has been widely used in various applications, including heat
exchangers in power plants and metallurgy, energy and chemical industries because of their …

[HTML][HTML] Performance boost of a helical heat absorber by utilization of twisted tape turbulator, an experimental investigation

C Xie, IB Mansir, I Mahariq, PK Singh… - Case Studies in Thermal …, 2022 - Elsevier
Present investigation, experimentally probes the influence of utilization of twisted tape
turbulator inside a helical tube. Twisted tapes mix the flow and enhance the heat transfer …

Two-tube heat exchanger with variable groove angle on the inner pipe surface: Experimental study

ST Firoozeh, N Pourmahmoud, M Khalilian - Applied Thermal Engineering, 2023 - Elsevier
Flow patterns in fluids affected by a grooved surface tube are different from a smooth pipe.
The importance of a compact and optimal design of heat exchangers has led to extensive …

Experimental and numerical investigations on the effect of a novel internal surface micro-grooving toward improving convective heat transfer performance of tube heat …

M Eid, MNM Zubir, MR Muhamad, SN Kazi… - Physics of …, 2023 - pubs.aip.org
In the present work, the use of passive heat transfer enhancement technique through
surface alteration was explored. The enhancement was achieved through internal conduit …

Effect of triangular perforated flat cone-shaped inserts on performance of double-tube heat exchanger

MV Bidari, PB Nagaraj, G Lalagi, K Rajesh - Physics of Fluids, 2023 - pubs.aip.org
This study investigated the effect of triangular perforations with flat conical inserts in a
double-tube heat exchanger. Triangular perforations with flat cone-shaped inserts were …

Heat transfer and pressure drop performance improvement using curved circular spines for flow through circular pipe

P Batule, PW Deshmukh, RM Warkhedkar - Thermal Science and …, 2023 - Elsevier
The heat transfer augmentation method of inserting curved circular spines increases the
dwelling time of the fluid within the system by inducing swirling motion within the fluid. It is a …

Flow characteristics and passive flow control of circular cylinders with triangular vortex generators: An experimental investigation

MH Aksoy - Applied Ocean Research, 2024 - Elsevier
Optimizing flow patterns around cylinders is crucial for diverse engineering applications,
aiming to mitigate vibrations induced by vortex shedding and minimize drag. Strategies …