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Methods and Developments for Enhancement of Heat Transfer

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "J1: Heat and Mass Transfer".

Deadline for manuscript submissions: closed (14 July 2023) | Viewed by 7507

Special Issue Editor


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Guest Editor
Department of Mechanical Engineering, Jadavpur University, Kolkata 700032, India
Interests: enhancement of heat transfer; cycle analysis of refrigeration systems; microchannel flow; bioheat transfer, etc.

Special Issue Information

Dear Colleagues,

Owing to the demand for the miniaturization of heat exchange devices, heat transfer enhancement is extremely important nowadays for the requirement of transporting heat at a greater rate to improve the heat transfer performance. There are many aspects directly involved in augmenting heat transfer, such as fins and microfins, porous media, large particles suspensions, nanofluids, phase-change devices, flexible seals, flexible complex seals, vortex generators, protrusions, and ultra-high thermal conductivity composite materials. Among these, fins and microfins are widely used in enhancing heat transfer by considering the porous medium, helical shape, array arrangement, joint type, capsulated liquid metal, permeable condition, biconvection, and root effect. Nanofluids are now used for the enhancement of heat transfer by establishing the reasons for augmentations. The flow and heat transfer in porous media is a passive model for the enhancement method. Helping the system support based on flexible/flexible–complex seals is a wide scope to deal with the enhanced heat transfer is possible. Other methods, such as vortex generators, protrusions, and composite material with ultra-high thermal conductivity, participate in passive augmentations of heat transfer. For each enhancer, the enchantment factors are the primary parameter to evaluate the augmentation characteristics.         

The main purpose of this Special Issue is to collect the latest findings of outstanding research on the enhancement of heat transfer, focussing on state-of-the-art progress, methods, developments, and new trends.  

Topics of interest for publication include, but are not limited to, the following:

  • Theoretical development to analyse heat transfer in fins and microfins based on the latest improvement;
  • Heat transfer increment using nanofluids;
  • Heat transport augmentation by utilizing porous media;
  • Heat energy enhancement using fluids with large particles suspensions;
  • Heat transfer intensification employing flexible seals;
  • Heat transport improvement by creating vortex generators;
  • Amplification of heat transfer using protrusions;
  • Enhancement of heat transfer applying ultra-high thermal conductivity composite materials;
  • Optimal design methodologies for maximization of heat transfer augmentation;
  • Advanced modelling to improve thermal analysis;
  • Thermo-fluid conjugate analysis;
  • Advancement of heat transfer in biological systems;
  • Solar collector design based on the augmentation of energy transport;
  • Augmentation heat transfer analysis in a microchannel;
  • Heat transfer improvement using phase-change material;
  • Inverse analysis for the enhancement of heat transfer systems.
  • Electric car battery heating management with the enhancement of heat transfer;
  • Heat transfer in frosted fins;
  • Heat transfer enhancement in Couette flow.

Prof. Dr. Balaram Kundu
Guest Editor

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Keywords

  • porous medium
  • augmentation
  • extended surfaces
  • nanofluids
  • optimization
  • bioheat
  • fractional derivatives
  • microchannels
  • solar collector

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Published Papers (3 papers)

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Research

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13 pages, 2290 KiB  
Article
Design Analysis of Heat Sink Using the Field Synergy Principle and Multitarget Response Surface Methodology
by Ming-Che Lin and Ruei-Fong Lin
Energies 2022, 15(22), 8399; https://doi.org/10.3390/en15228399 - 10 Nov 2022
Cited by 1 | Viewed by 1557
Abstract
This study describes a novel heat sink design approach employs the field synergy concept and multitarget response surface methodology (RSM). The multiobjective response surface methodology can be used to determine the simulation equations that will maximize the heat transfer of fins at various [...] Read more.
This study describes a novel heat sink design approach employs the field synergy concept and multitarget response surface methodology (RSM). The multiobjective response surface methodology can be used to determine the simulation equations that will maximize the heat transfer of fins at various fin heights, fin angles, and fin circumferences, when considering the impact of jet flow heat exchange. The goal of the response value was to maintain the minimum possible average field coangle and fin temperature. The results show that the ideal heat sink size would be the following: fins with a height of 50 mm, an angle of 60 degrees, and the number of fins equal to five. We examined the impact of wall speed on the heat transfer caused by the field synergy angle. Our findings suggest that with the synchromesh of the display field, heat-dissipation efficiency rises. Full article
(This article belongs to the Special Issue Methods and Developments for Enhancement of Heat Transfer)
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13 pages, 4400 KiB  
Article
Guide Vane for Thermal Enhancement of a LED Heat Sink
by Sungjoon Byun, Seounghwan Hyeon and Kwan-Soo Lee
Energies 2022, 15(7), 2488; https://doi.org/10.3390/en15072488 - 28 Mar 2022
Cited by 2 | Viewed by 1971
Abstract
A guide vane was installed on a heat sink to enhance the cooling effect of light-emitting diode (LED) lights. The validity of the numerical analysis was verified against the experimental results and the result of the previous studies. The effect of the guide [...] Read more.
A guide vane was installed on a heat sink to enhance the cooling effect of light-emitting diode (LED) lights. The validity of the numerical analysis was verified against the experimental results and the result of the previous studies. The effect of the guide vane on the heat dissipation performance of the heat sink was identified. The effect of the guide vane on the heat sink was qualitatively studied using the streamline and temperature contour. The cooling effect of the heat sink was enhanced by increased air supplement to the center-bottom part. A parametric study was conducted to determine the thermal resistance according to the guide vane angle, installation height, and vane length. Optimization was performed to minimize the thermal resistance using the Kriging model and micro-genetic algorithm (MGA). The cooling performance of the heat sink was enhanced by a maximum of 17.2% when the guide vane was installed. Full article
(This article belongs to the Special Issue Methods and Developments for Enhancement of Heat Transfer)
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Review

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51 pages, 5169 KiB  
Review
Review and Analysis of Electro-Magnetohydrodynamic Flow and Heat Transport in Microchannels
by Balaram Kundu and Sujit Saha
Energies 2022, 15(19), 7017; https://doi.org/10.3390/en15197017 - 24 Sep 2022
Cited by 19 | Viewed by 3145
Abstract
This paper aims to develop a review of the electrokinetic flow in microchannels. Thermal characteristics of electrokinetic phenomena in microchannels based on the Poisson–Boltzmann equation are presented rigorously by considering the Debye–Hückel approximation at a low zeta potential. Several researchers developed new mathematical [...] Read more.
This paper aims to develop a review of the electrokinetic flow in microchannels. Thermal characteristics of electrokinetic phenomena in microchannels based on the Poisson–Boltzmann equation are presented rigorously by considering the Debye–Hückel approximation at a low zeta potential. Several researchers developed new mathematical models for high electrical potential with the electrical double layer (EDL). A literature survey was conducted to determine the velocity, temperature, Nusselt number, and volumetric flow rate by several analytical, numerical, and combinations along with different parameters. The momentum and energy equations govern these parameters with the influences of electric, magnetic, or both fields at various preconditions. The primary focus of this study is to summarize the literature rigorously on outcomes of electrokinetically driven flow in microchannels from the beginning to the present. The possible future scope of work highlights developing new mathematical analyses. This study also discusses the heat transport behavior of the electroosmotically driven flow in microchannels in view of no-slip, first-order slip, and second-order slip at the boundaries for the velocity distribution and no-jump, first-order thermal-slip, and second-order thermal-slip for the thermal response under maintaining a uniform wall-heat flux. Appropriate conditions are conferred elaborately to determine the velocity, temperature, and heat transport in the microchannel flow with the imposition of the pressure, electric, and magnetic forces. The effects of heat transfer on viscous dissipation, Joule heating, and thermal radiation envisage an advanced study for the fluid flow in microchannels. Finally, analytical steps highlighting different design aspects would help better understand the microchannel flow’s essential fundamentals in a single document. They enhance the knowledge of forthcoming developmental issues to promote the needed study area. Full article
(This article belongs to the Special Issue Methods and Developments for Enhancement of Heat Transfer)
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