Heat transfer augmentation using twisted tape inserts: a review

MO Garg, H Nautiyal, S Khurana, MK Shukla - … and Sustainable Energy …, 2016 - Elsevier
Heat transfer enhancement is an important matter of concern for energy conservation and
also beneficial from economic point of view. The use of passive devices like twisted tapes …

Enhancing the thermal performance of TiO2/water nanofluids flowing in a helical microfin tube

B Kristiawan, AI Rifa'i, K Enoki, AT Wijayanta… - Powder Technology, 2020 - Elsevier
A hybrid method with a microfin tube and TiO 2/water nanofluid with various nanoparticles
concentration has been investigated experimentally. The objectives of this work are to …

Inducing swirl flow inside the pipes of flat-plate solar collector by using multiple nozzles for enhancing thermal performance

Y Cao, H Ayed, M Hashemian, A Issakhov, F Jarad… - Renewable Energy, 2021 - Elsevier
In this numerical study, an attempt has been made to improve the thermal performance of
the flat-plate solar collector (FPSC) by inducing the swirl flow inside the tube by the …

Novel design of delta winglet pair vortex generator for heat transfer enhancement

M Oneissi, C Habchi, S Russeil, D Bougeard… - International Journal of …, 2016 - Elsevier
Heat transfer is a naturally occurring phenomenon that can be greatly enhanced with the aid
of vortex generators (VG). Three-dimensional numerical simulations of longitudinal vortex …

A review on the thermal performance of nanofluid inside circular tube with twisted tape inserts

S Ahmad, S Abdullah, K Sopian - Advances in Mechanical …, 2020 - journals.sagepub.com
Working fluid with higher thermal conductivity and tube with better fluid mixing are two
crucial elements for heat transfer enhancement in heat exchanger system. Hence, several …

Heat transfer enhancement in a tube using circular cross sectional rings separated from wall

V Ozceyhan, S Gunes, O Buyukalaca, N Altuntop - Applied energy, 2008 - Elsevier
A numerical study was undertaken for investigating the heat transfer enhancement in a tube
with the circular cross sectional rings. The rings were inserted near the tube wall. Five …

Investigation of heat transfer enhancement in a new type heat exchanger using solar parabolic trough systems

HM Şahin, E Baysal, AR Dal, N Şahin - International journal of hydrogen …, 2015 - Elsevier
Hydrogen production from solar energy is one of the most candidates in near future.
Concentric tube heat exchangers have been used in concentrated solar power (CSP) plants …

Numerical study of the laminar flow and heat transfer characteristics in a tube inserting a twisted tape having parallelogram winglet vortex generators

ZM Lin, LB Wang, M Lin, W Dang, YH Zhang - Applied Thermal Engineering, 2017 - Elsevier
The usage of wings or/and winglets vortex generators (VGs) could provide excellent heat
transfer performance with a minimal increase in pressure loss comparing with other VGs in a …

[HTML][HTML] Thermal improvement of heat exchanger with involve of swirl flow device utilizing nanomaterial

AA Azhari, AH Milyani, NH Abu-Hamdeh… - Case Studies in Thermal …, 2023 - Elsevier
The main objective of this article is to increase the flow mixing within a tube; in this regard,
the helical tape with external inserts was developed and studied. CuO based nanofluids was …

Multi objective optimization of vortex generators for heat transfer enhancement using large design space exploration

H Karkaba, T Dbouk, C Habchi, S Russeil… - … and Processing-Process …, 2020 - Elsevier
In many applications, convective heat transfer enhancement is readily achieved by
generating streamwise vortices and coherent flow structures using Vortex Generators (VG's) …