Effect of a unique winglet twisted tape insert on thermal and hydraulic properties of tubular heat exchanger

Maithani, Rajesh; Kumar, Bipin; Sharma, Sachin; Kumar, Sunil; Kumar, Anil

doi:10.1080/08916152.2022.2038725

Cited by 15 publications

(6 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Renewable energy sources are vital, 26 but their inherent intermittency leads to inconsistent power generation, even during the day. Specialized heat exchangers 27,28 offer a solution to address these inconsistencies by optimizing heat and mass transfer processes. Through instabilities research, we can improve fluid system performance, enhance energy conversion efficiency, and drive the adoption of renewable energy technologies.…”

Section: Introductionmentioning

confidence: 99%

Electrohydrodynamic capillary instability of Rivlin–Ericksen viscoelastic fluid film with mass and heat transfer

Awasthi,

Dutt,

Kumar

et al. 2023

Heat Trans

Self Cite

View full text Add to dashboard Cite

This paper presents an analysis of viscous fluids and a Rivlin–Ericksen (R‐E) viscoelastic fluid interface under the influence of heat and mass transfer, while both fluids are exposed to an axial electric field. The fluids are restricted within an annular region that is enclosed by two rigid cylinders. The outer section of the annular region holds the R‐E viscoelastic fluid, while the inner section is filled with the viscous fluid. To ascertain the correlation between perturbation growth and wavenumber, the theory of potential flow on viscoelastic–viscous fluids is applied, and the result is represented as a second‐order polynomial. This correlation is numerically solved using the Newton–Raphson method. Variables of viscous flow, such as electric field strength, heat transfer coefficient, viscoelasticity, viscosity, and so forth, are numerically studied. With an increase in electric field strength, the perturbation growth decays and expands for the particular combinations of permittivity and conductivity ratio, showing the dual effect of the axial electric field.

show abstract

Section: Introductionmentioning

confidence: 99%

Electrohydrodynamic capillary instability of Rivlin–Ericksen viscoelastic fluid film with mass and heat transfer

Awasthi,

Dutt,

Kumar

et al. 2023

Heat Trans

Self Cite

View full text Add to dashboard Cite

show abstract

“…The results reveal that the Nu enhanced from 2.24 to 4.56, the friction factor increased from 4.01 to 23.23 times, and the maximum thermal performance was obtained up to 1.72 at a pitch ratio of 0.4 and anchor wing aspect ratio of 1 for 3000 Re [19]. Maithani et al, (2022) show the result of an experimental investigation using winglet twisted tape under various geometrical parameters such as wing twist ratio, wing pitch ratio, and wing height ratio for the Re range of 3000 to 21000. The maximum thermal performance obtained was achieved up to 1.58 [20].…”

Section: Introductionmentioning

confidence: 95%

Thermohydraulic Performance Analysis of Tube Heat Exchanger using Dual Side Serrated Insert Tape Having Triangular Wings

Singh¹,

Debbarma

2023

Preprint

View full text Add to dashboard Cite

The thermal performance of heat exchangers can be improved by increasing the rate of heat transfer. Heat transmission and fluid flow characteristics have been improved in this experimental study by adopting a dual-side serrated insert tape with triangular wings. Different geometrical parameters such as wing pitch ratio (P/W), wing width ratio (w/W), wing depth ratio (d/W), serration width ratio (x/W), and perforation index (PI) are considered. The work is performed with various configurations of flow direction such as forward and backward flow with and without alternate axis using various ranges of Reynolds Number (i.e., 10000 ≤ Re ≤ 30000). According to the findings, the forward flow configuration of the insert performs better as compared to the backward flow. But the alternate axis with backward flow configurations and without perforation on the winglet improved thermal performance up to 1.05 times. In the alternate axis with forward flow configuration and with perforation on the winglet, the friction factor is at its lowest value. The Nusselt number and thermal performance factor enhanced up to 1.5 times, and 1.03 as compared to the plain tube.

show abstract

“…The study asserted that the number of revolutions greatly influences the flow disturbance and generation of the secondary flow, which facilitated the heat transfer enhancement. Maithani et al [30] assessed the hydrothermal behaviour of tubular heat exchanger winglet-type twisted tape under a high Reynolds number 3 000 to 21 000. They reported that the highest performance evaluation criteria (PEC) obtained was about 1.58.…”

Section: Introductionmentioning

confidence: 99%

Numerical Thermal Augmentation of Ternary Nanofluid in a Tube with Stent, Torus-Ring and Surface-Grooved Twisted Tapes Under Non-Uniform Wall Temperature

ibrahim¹,

Olakoyejo²,

Abolarin³

et al. 2023

Preprint

View full text Add to dashboard Cite

Effect of a unique winglet twisted tape insert on thermal and hydraulic properties of tubular heat exchanger

Cited by 15 publications

References 44 publications

Electrohydrodynamic capillary instability of Rivlin–Ericksen viscoelastic fluid film with mass and heat transfer

Electrohydrodynamic capillary instability of Rivlin–Ericksen viscoelastic fluid film with mass and heat transfer

Thermohydraulic Performance Analysis of Tube Heat Exchanger using Dual Side Serrated Insert Tape Having Triangular Wings

Numerical Thermal Augmentation of Ternary Nanofluid in a Tube with Stent, Torus-Ring and Surface-Grooved Twisted Tapes Under Non-Uniform Wall Temperature

Contact Info

Product

Resources

About