Results 251 to 260 of about 68,479 (303)

2.5.11 SINGLE-PHASE CONVECTIVE HEAT TRANSFER: AUGMENTATION OF HEAT TRANSFER

Heat Exchanger Design Updates, 2006
Replace the existing Section 2.5.11 in the folder for Part 2 with the new Section.
David A. Reay, Arthur E. Bergles
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Heat transfer augmentation using liquid crystal

SPIE Proceedings, 2002
A visualization technique is used to measure the heat transfer to a plane surface with obstacles. Liquid crystal coated on a mylar sheet is used to locate isotherms on a cooled plate. The isotherms on the plate surface are recorded by JVC-camera and true-color image processing system.
Maciej Wierzbowski, Jan A. Stasiek
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Exploring ferrofluids for heat transfer augmentation

Journal of Magnetism and Magnetic Materials, 2019
Abstract We explore the potential of ferrofluids for heat transfer augmentation, via numerical simulations using water-based ferrofluids flowing between parallel plates (laminar flows; Reynolds number (Re) 〈1 0 0), exposed to external magnetic fields, produced by single and multiple magnetic line dipoles.
Ram Krishna Shah, Sameer Khandekar
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Heat transfer augmentation in retrofitted corrugated plate heat exchanger

International Journal of Heat and Mass Transfer, 2020
Abstract Corrugated plate heat exchangers (CPHEs) have been extensively adopted especially for systems that require high thermal efficiencies such as aerospace and gas turbine power plants. According to several factors (i.e. required heat duty), CPHEs can be optimized to meet the application requirements.
Salman Al zahrani, Mohammad S. Islam, Suvash C. Saha   +2 more
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Comparison of Heat Transfer Augmentation Techniques

AIAA Journal, 2003
Dr. Phil Ligrani is currently Professor of Mechanical Engineering and Director of the Convective Heat Transfer Laboratory at the University of Utah and a Fellow of the American Society of Mechanical Engineers. He has beenworking on convection heat transfer and fluid mechanics research problems since he received his Ph.D.
P. M. Ligrani, M. M. Oliveira, T. Blaskovich   +2 more
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Augmentation of heat transfer through passive techniques

Heat Transfer, 2023
AbstractThe thermal performance of energy preservation systems is greatly improved by increasing miniaturization and boosting. These are imaginative (or Promethean) techniques to enhance heat transfer. Enhancement methods of heat transfer draw great attention in front of the industrial sector because of their ability to provide energy savings and raise
Lalitha Krishna Nitturi, Venkata Kusuma Soumya Kapu, Ravi Gugulothu, Aparna Kaleru, Vinay Vuyyuri, Ahmed Farid   +5 more
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Heat Transfer Augmentation by Tube Inserts in Heat Exchangers

SAE Technical Paper Series, 1989
<div class="htmlview paragraph">Experimental investigations have been carried out in the fin and tube crossflow heat exchangers to determine the characteristics of different augmentative tube inserts. Hot oil through the tubes and the flow of ambient air perpendicular to the bank of finned tubes are the heat exchanging fluids.
D. Jayaraj, J. G. Masilamani, K. N. Seetharamu   +2 more
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Heat Transfer Augmentation

1988
This introductory chapter on the augmentation of convective heat transfer provides background for the many applications of this “second generation heat transfer technology” cited throughout this volume. The many available augmentation techniques are described, and some representative performance data and correlations are given for the popular passive ...
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Nanofluid heat transfer augmentation in a double pipe heat exchanger

AIP Conference Proceedings, 2020
In this study, the heat transfer coefficient and pressure drop in a tube under turbulent flow condition are studied numerically. The Reynolds number range and nanoparticles concentration are in the range of (5000-30000) and 1% to 4% respectively. The governing equations have solved by the finite volume method adopting ANSYS software for simulation. The
Kafel Azeez, Ayad Fouad Hameed, Adnan M. Hussein   +2 more
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Fouling of Augmented Heat Transfer Tubes

Heat Transfer Engineering, 1990
Comparisons are made between fouling of augmented and plain heat transfer tubes. Results from the literature are analyzed on a consistent basis to emphasize differences between extended and enhanced surfaces. Tubes with internal and external fins are considered, as well as different types of enhanced tubes.
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