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extended surfaces

Optimization of Extended Surfaces on Tubes of The Radiant Section of Fired Heaters Ivan C. Silva 1and Marcelo J. Colaço 2

Optimization of Extended Surfaces on Tubes of The Radiant Section of Fired Heaters Ivan C. Silva 1and Marcelo J. Colaço 2

... of extended surfaces in the tubes of the radiation section of fired heaters has the potential to significantly improve the heat flux distribution, reducing the risk factors that lead to the harmful ...

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Heat Transfer Enhancement and Thermal Performance of Extended Surfaces with Cavity

Heat Transfer Enhancement and Thermal Performance of Extended Surfaces with Cavity

... of extended surface or finned ...of extended surfaces with same geometry having various shapes of extension and without extension has been ...the extended surface or finned surfac es is used ...

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A quasi-analytical solution of homogeneous extended surfaces heat diffusion equation

A quasi-analytical solution of homogeneous extended surfaces heat diffusion equation

... The homotopy method is a quasi-analytical solution for solving nonlinear boundary value problem (Domairry and Fazeli 2009; Hayat et al. 2017a). This method does not re- quire the calculation of Adomian polynomials as ...

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The Effect of Extended Surfaces on the Heat and Mass Transfer in the Solar Distillation Systems

The Effect of Extended Surfaces on the Heat and Mass Transfer in the Solar Distillation Systems

... of extended surfaces in a solar-still system is investigated ...the surfaces, table tennis balls with diameters of 40 mm, which are painted black, are ...

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Forced convection of nanofluids in an extended surfaces channel using lattice Boltzmann method

Forced convection of nanofluids in an extended surfaces channel using lattice Boltzmann method

... with extended sur- face using three different ...the extended surfaces ...of extended surfaces can enhance the rate of heat transfer for certain ...

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Design and Analysis of Extended Surfaces with Different Thermal Conductivity Using ANSYS 12

Design and Analysis of Extended Surfaces with Different Thermal Conductivity Using ANSYS 12

... has led to development and use of many techniques termed as “Heat transfer Augmentation”. This technique is also termed as “Heat transfer Enhancement” or “Intensification”. Augmentation techniques increase convective ...

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Numerical Modeling of Phase Change Material to Enhance Heat Transfer using Extended Surfaces

Numerical Modeling of Phase Change Material to Enhance Heat Transfer using Extended Surfaces

... The solar energy can also be stored by using latent heat thermal storage LHTS that uses a phase change material PCM.. But the main disadvantages of PCMs are its low conductivity, which m[r] ...

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REVIEW OF HEAT TRANSFER ENHANCEMENT IN DIFFERENT TYPES OF EXTENDED SURFACES

REVIEW OF HEAT TRANSFER ENHANCEMENT IN DIFFERENT TYPES OF EXTENDED SURFACES

... Paisarn Naphon [11] have investigated the heat transfer characteristics and pressure drop in the channel with V corrugated upper and lower plates under constant heat flux. He has carried out the analysis on channel with ...

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Simulation of forced convection in a channel with nanofluid by the lattice Boltzmann method

Simulation of forced convection in a channel with nanofluid by the lattice Boltzmann method

... The geometry of the problem is shown in Figure 1. A cold mixture of base fluid (water) and the nanoparticles (alu- mina) is forced to flow into a channel that is heated from its bottom and kept at a constant high ...

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Review on Heat Transfer Enhancement Through Fins Using Surface Modifications

Review on Heat Transfer Enhancement Through Fins Using Surface Modifications

... Abstract: Extended surfaces are employed in many engineering applications such as heat exchanger, chemical reactor and micro-electronic devices; hence many techniques have been investigated on enhancement ...

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A Review Study of Fins Thermal Analysis by Using Fem

A Review Study of Fins Thermal Analysis by Using Fem

... through extended surfaces and the heat transfer coefficient affected by changing cross section this study is useful to recognize the better geometry and material for the fins for higher engine ...

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Heat Transfer Rate Analysis by Computational Fluid Dynamics for Air Cooled IC Engine Fins

Heat Transfer Rate Analysis by Computational Fluid Dynamics for Air Cooled IC Engine Fins

... Fins:The Engine cylinder is one of the major automobile components, which is subjected to high temperature variations and thermal stresses. In order to cool the cylinder, fins are provided. Fins are the extended ...

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Improvement in Heat Transfer Inside a phase change Energy System

Improvement in Heat Transfer Inside a phase change Energy System

... ii. Microencapsulated PCM [15]. Active methods of agitators, vibrators, slurries and scrapers. Extended surfaces such as fins and honeycombs [16]. PCM mixed with composite materia[r] ...

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Navigation by environmental geometry: the use of zebrafish as a model

Navigation by environmental geometry: the use of zebrafish as a model

... between extended surfaces (Experiment 3), and not by the corners at which they intersect (Experiment 4), it does not yet preclude the possibility that zebrafish also reorient by differences in surface ...

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Scattering from Perfectly Magnetic Conducting Surfaces: the Extended Theory of Boundary Diffraction Wave Approach

Scattering from Perfectly Magnetic Conducting Surfaces: the Extended Theory of Boundary Diffraction Wave Approach

... (PMC) surfaces are examined with the extended TBDW ...PMC surfaces is obtained and applied to the extended theory of boundary diffraction ...The extended TBDW is adapted for PMC ...

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Surface Force Measurement between Atomic Layer Deposition Prepared Hafnia Surfaces

Surface Force Measurement between Atomic Layer Deposition Prepared Hafnia Surfaces

... between surfaces of opposite charge but the same magnitude in Figure ...two surfaces were varied so that they were equal in magnitude but opposite ...

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In situ cleaning of GaN(0001) surfaces in a metalorganic vapor phase epitaxy environment

In situ cleaning of GaN(0001) surfaces in a metalorganic vapor phase epitaxy environment

... GaN surfaces in a high vacuum GSMBE environ- ment has been extended to a MOVPE environment at 20 ...The surfaces of homoepitaxial films grown on GaN templates heated in the absence of ammonia ...

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Influenza A Virus N5 Neuraminidase Has an Extended 150-Cavity

Influenza A Virus N5 Neuraminidase Has an Extended 150-Cavity

... There are 9 serotypes of neuraminidase (NA) from influenza A virus (N1 to N9), which are classified into two groups based on primary sequences (groups 1 and 2). The structural hallmark of the two groups is the presence ...

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Inferring the timing of abandonment of aggraded alluvial surfaces dated with cosmogenic nuclides

Inferring the timing of abandonment of aggraded alluvial surfaces dated with cosmogenic nuclides

... geomorphic surfaces, they are randomly point-sampling the full time span of surface formation, and that this time span represents a uniform probability distribu- tion of selectable ...

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Occurrence and Resistance Profile of Extended Spectrum Beta- Lactamase Escherichia coli from Inanimate Surfaces of Student Toilets

Occurrence and Resistance Profile of Extended Spectrum Beta- Lactamase Escherichia coli from Inanimate Surfaces of Student Toilets

... The finding in our study indicates the highest-risk areas for contamination with ESBL producing E. coli on seats of both public and private toilets and then the floors, suggesting that human feces are the main source for ...

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