Fluid Flow in Helically Coiled Pipes

LDG Sigalotti, CE Alvarado-Rodríguez, O Rendón - Fluids, 2023 - mdpi.com
Helically coiled pipes are widely used in many industrial and engineering applications
because of their compactness, larger heat transfer area per unit volume and higher …

Numerical investigation of heat transfer and pressure drop characteristics in the micro-fin helically coiled tubes

EP Kumar, AK Solanki, MMJ Kumar - Applied Thermal Engineering, 2021 - Elsevier
The design of a compact heat exchangers is the challenging work in heat transfer research
area. The enhancement of heat transfer can be achieved by increasing the surface area of …

Forecasting of saturated boiling heat transfer inside smooth helically coiled tubes using conventional and machine learning techniques

MA Moradkhani, SH Hosseini, M Karami - International Journal of …, 2022 - Elsevier
This study concerns to model the flow boiling heat transfer coefficient (HTC) in smooth
helically coiled tubes. A dataset including 1035 samples was collected from 13 independent …

[HTML][HTML] Heat transfer analysis of subcooled flow boiling in copper foam helical coiled heat exchanger–A pore-scale numerical study

KL Liaw, JC Kurnia, N Sallih, M Mustapha… - … Communications in Heat …, 2024 - Elsevier
High performance thermal energy systems are crucial in fulfilling the growing demand of
thermal energy. Consequently, numerous heat transfer enhancements have been proposed …

A data driven deep neural network model for predicting boiling heat transfer in helical coils under high gravity

X Liang, Y Xie, R Day, X Meng, H Wu - … Journal of Heat and Mass Transfer, 2021 - Elsevier
In this article, a deep artificial neural network (ANN) model has been proposed to predict the
boiling heat transfer in helical coils under high gravity conditions, which is compared with …

Experimental study of two-phase frictional pressure drop of steam-water in helically coiled tubes with small coil diameters at high pressure

Y Xiao, Z Hu, S Chen, H Gu - Applied Thermal Engineering, 2018 - Elsevier
The pressure drop characteristics of helical coils are important to the design optimization of
helically coiled steam generators. Single-phase and two-phase flow pressure drop …

Condensation frictional pressure drop characteristic of R-600a inside the horizontal smooth and dimpled helical coiled tube in shell type heat exchanger

AK Solanki, R Kumar - International Journal of Thermal Sciences, 2020 - Elsevier
In this paper, an experimental study on condensation frictional pressure drop of R-600a
inside smooth and dimpled helical coiled tubes were examined. The experiments were …

Two-phase flow frictional pressure drop prediction in helical coiled tubes

DL Ferraris, CP Marcel - International Journal of Heat and Mass Transfer, 2020 - Elsevier
Based on the construction of different experimental databases, the frictional pressure drop in
helical tubes for single-phase and water-steam two-phase flow was analyzed empirically …

Experimental study on flow boiling and circumferential non-uniform heat transfer characteristics in helically-coiled tube under coupled heat transfer conditions

H Wang, Q Xuan, H Lei, X Li, Z Li, H Li - Applied Thermal Engineering, 2025 - Elsevier
Helically-coiled tube steam generator has been widely used in nuclear reactor, energy
power, petrochemical and other systems. In the liquid metal reactor, the liquid metal on the …

Development of a RELAP5 model for the thermo-hydraulic characteristics simulation of the helically coiled tubes

Z Xu, M Liu, Y Xiao, H Gu - Annals of Nuclear Energy, 2021 - Elsevier
In helically coiled tubes, the geometry induced centrifugal forces exert the fluid
enhancement upon the heat transfer and pressure drop. Hence, it is essential to develop a …