Results 51 to 60 of about 81,413 (196)

Bubble nucleation in saturated and subcooled boiling [PDF]

open access: yesThe Canadian Journal of Chemical Engineering, 1973
AbstractAn experimental investigation is reported for water boiling at atmospheric pressure on a copper surface in which the nucleation of bubbles was observed at an artificial nucleation site for five levels of heat flux between 11,700 Btu/hr ft3 and 19,600 Btu/hr ft2 and various levels of subcooling from 0°F to 32°F.
P. L. De, R. L. Judd
openaire   +3 more sources

A Review on High‐Temperature Phase‐Change Materials for Waste Heat Recovery: Advances in Materials, System Integration, and Industrial Sustainability

open access: yesAdvanced Energy and Sustainability Research, Volume 7, Issue 6, June 2026.
This review evaluates recent advancements in high‐temperature phase‐change materials for industrial waste heat recovery above 150°C. Analyzing materials like metallic alloys and molten salts, the study demonstrates that optimized integration can increase recovery efficiency by 20%–40%.
Pietropaolo Morrone   +5 more
wiley   +1 more source

Heat-transfer characteristics of screw tube in one-side high heat load condition for fusion reactor divertor application

open access: yesInternational Journal of Advanced Nuclear Reactor Design and Technology, 2021
In this study, the heat transfer characteristics of one-side heated screw tubes were analyzed using subcooled flow boiling experiments. The experiments were performed until the critical heat flux was reached, while the applied heat flux was gradually ...
Ji Hwan Lim   +6 more
doaj   +1 more source

Experimental Factors and Techniques for Pool Boiling Heat Transfer Enhancement: A Critical Review

open access: yesHeat Transfer, Volume 55, Issue 4, Page 2201-2232, June 2026.
ABSTRACT This review presents a comprehensive assessment of active strategies for enhancing pool boiling heat transfer, with a focus on techniques that do not rely solely on the boiling surface modification. It examines a broad range of methodologies including fluid additives, external fields, mechanical interventions, and thermal‐geometric tuning that
José E. Pereira   +2 more
wiley   +1 more source

Heat Transfer Performance of Biphilic Surfaces With Diatomite‐Based Composite Coatings in a Closed Thermosyphon System

open access: yesHeat Transfer, Volume 55, Issue 3, Page 1608-1638, May 2026.
ABSTRACT This study investigates the thermal performance of innovative biphilic boiling surfaces designed for CPU cooling applications using a two‐phase closed thermosyphon (TPCT) system. The surfaces were fabricated by applying composite coatings—comprising epoxy resin and diatomite particles functionalized with APTES and PFOTS silanes— onto Al1050 ...
José Pereira   +3 more
wiley   +1 more source

Performance Investigation of Eco‐Friendly Refrigerant Mixtures as an Alternative to R134a in Vapour‐Compression Refrigeration System

open access: yesAsia-Pacific Journal of Chemical Engineering, Volume 21, Issue 2, March/April 2026.
ABSTRACT The growing impacts of climate change and energy scarcity demand environmentally sustainable refrigeration solutions. This study investigates eco‐friendly refrigerants (R152a, R290 and R600a) and their optimized ternary mixture as alternatives to R134a. Four blend compositions were analysed using experimental testing and REFPROP 10.0 modelling
M. Periyasamy, P. Senthilkumar
wiley   +1 more source

Experimental Study on Enhanced Boiling Heat Transfer on Micro-pin-fin Structures at High Degrees of Subcooling

open access: yesZhileng xuebao, 2023
In response to the power increase in electronic devices with high heat flux density, new efficient cooling technologies should be developed to ensure the safe operation of these electronic devices.
Wang Yueming   +3 more
doaj  

Seismo‐Acoustic Evidence for Meteoric Water Modulation of Hydrothermal Fluid Discharge

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract Deciphering the signal of external processes on active hydrothermal dynamics represents a critical challenge in understanding volcanic unrest. At the Pisciarelli hydrothermal site, located within the densely populated Campi Flegrei caldera (Italy), we investigate the role of meteoric water influx in modulating shallow hydrothermal fluid ...
Rebecca Sveva Morelli   +23 more
wiley   +1 more source

A Model‐Based Interpretation for the Apparently Homogeneous Steam Bubble Nucleation in Industrial Evaporative Sucrose Crystallization

open access: yesJournal of Food Process Engineering, Volume 49, Issue 3, March 2026.
A model has been developed and validated with data from the sugar industry to determine the evaporation rate of discontinuous evaporating crystallizers. The results indicate that vapor nucleation on the surface of sucrose crystals is a significant factor, particularly in the context of low temperature differences in the calandria.
Felix Geisendörfer   +2 more
wiley   +1 more source

Exploring the Effects of Reduced Gravitational Field Impacts on Convective Heat Transfer: A Comprehensive Review

open access: yesHeat Transfer, Volume 55, Issue 1, Page 764-774, January 2026.
ABSTRACT This review explores the impact of gravitational instability on convective heat transfer, integrating existing research results and theoretical models. Gravitational instability is vital in promoting or hindering convective actions in different systems, such as atmospheric events, ocean currents, and industrial processes.
Hossam A. Nabwey   +3 more
wiley   +1 more source

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