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An Updated Review of Heat Transfer Enhancement Techniques in Tube-Type Heat Exchangers

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Fluid Mechanics and Fluid Power, Volume 1 (FMFP 2022)

Part of the book series: Lecture Notes in Mechanical Engineering ((LNME))

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Abstract

The present study reviews the heat transfer intensification techniques utilized by the researchers in recent decades. By discussing the methods of augmentation of heat transfer, the study confined to passive techniques which are being used in tube-type heat exchangers. The passive techniques of heat transfer intensification in tubular heat exchangers include surface modification, extended surfaces, artificial roughness, and the insertion of turbulence enhancement devices like winglets, baffles, twisted tape inserts, etc. The prime objective of the enhancement devices is to break the thermal boundary layer and to change the pattern of the flow inside the tube. Nanofluids additionally play a sizable position due to their better thermal conductivity. In the present review, the vital investigations associated with nanofluid usage in tubular heat exchangers have additionally included.

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Abbreviations

A:

Cross-sectional flow area

Ao:

Outer surface area of the heat exchanger, (m2)

cp:

Specific-heat capacity at constant pressure

d:

Hydraulic diameter of the inner pipe, (m)

h:

Convective heat transfer coefficient, (W/m2K)

k:

Thermal conductivity (W/mK)

L:

Rib length (m)

L*:

Rib length ratio

m:

Mass flow rate of the fluid, (kg/s)

p:

Pitch ratio

Pe:

Peclet Number

Nu:

Nusselt number

∆P:

Pressure drop

P*:

Rib pitch ratio

Th:

Hot fluid inlet temperature, (°C)

Tc:

Cold fluid inlet temperature, (°C)

Q:

Rate of heat transfer, (W)

r:

Radius of pipe, (m)

α:

Rib inclined angle (°)

β:

Winglet angle (°)

μ:

Dynamic viscosity, (N-s/m2)

\(\eta\):

Performance index

\(\varepsilon\):

Effectiveness

\({\uprho }\):

Density

Ø:

Volume fraction of nanoparticles (%)

ACT:

Asymmetric corrugated tube

CHTC:

Convective heat transfer coefficient

DPHE:

Double-pipe heat exchangers

HTR:

Heat transfer rate

Exp:

Experimental

EG:

Ethyl glycol

Num:

Numerical

MWCNT:

Multi-wall carbon nanotube

PEC:

Performance evaluation criteria

SWCNT:

Single-wall carbon nanotube

SCT:

Symmetric corrugated tube

VC:

Volume concentration

VGs:

Vortex generators

TT:

Twisted tape

THPI:

Thermohydraulic performance index

avg:

Average

b:

Bare pipe

bf:

Base fluid

c:

Cold

h:

Hot

i:

Inner

nf:

Nanofluid

np:

Nanoparticle

o:

Outer

cw:

Cold water

hw:

Hot water

s:

Smooth tube

ct:

Corrugated tube

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Acknowledgements

The corresponding author acknowledges the fellowship support given by the Ministry of Education (MoE), Government of India.

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Authors and Affiliations

  1. Department of Mechanical and Industrial Engineering, MANIT Bhopal, Bhopal, 462003, India

    Manoj Kumar Diwaker & Arvind Kumar

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  1. Manoj Kumar Diwaker
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Correspondence to Manoj Kumar Diwaker .

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Editors and Affiliations

  1. Department of Mechanical and Industrial Engineering, IIT Roorkee, Roorkee, Uttarakhand, India

    Krishna Mohan Singh

  2. Department of Mechanical and Industrial Engineering, IIT Roorkee, Roorkee, Uttarakhand, India

    Sushanta Dutta

  3. Department of Mechanical and Industrial Engineering, IIT Roorkee, Roorkee, Uttarakhand, India

    Sudhakar Subudhi

  4. Department of Mechanical and Industrial Engineering, IIT Roorkee, Roorkee, Uttarakhand, India

    Nikhil Kumar Singh

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Diwaker, M.K., Kumar, A. (2024). An Updated Review of Heat Transfer Enhancement Techniques in Tube-Type Heat Exchangers. In: Singh, K.M., Dutta, S., Subudhi, S., Singh, N.K. (eds) Fluid Mechanics and Fluid Power, Volume 1. FMFP 2022. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-99-7827-4_6

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