Results 41 to 50 of about 26,631 (263)

A Study on Passive Cooling in Subsea Power Electronics

open access: yesIEEE Access, 2018
This paper proposes a simplified approach to model the thermal behavior of the insulated-gate bipolar transistors (IGBTs) in a subsea power electronic converter. The models are based on empirical relations for natural convection in water, and IGBT datasheet values. The proposed model can be used in the design of subsea converters and in the reliability
Faisal Wani   +3 more
openaire   +4 more sources

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

open access: yesAdvanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir   +5 more
wiley   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

open access: yesAdvanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar   +7 more
wiley   +1 more source

Eficiencia de estrategias de enfriamiento pasivo en clima cálido seco

open access: yesRevista de Arquitectura (Bogotá), 2014
ResumenEste documento presenta los resultados de una evaluación de la eficiencia de enfriamiento que se alcanza con la aplicación en techos estanque de seis técnicas de enfriamiento pasivo en clima cálido seco. El procedimiento consistió en monitorear en
Luis Carlos Herrera Sosa
doaj   +1 more source

Nondestructive Testing of Welded Composite Metal Foams

open access: yesAdvanced Engineering Materials, EarlyView.
X‐ray computed tomography (CT) is used to evaluate welded steel–steel composite metal foam (CMF) joints of two density classes. It reports variation in postweld spatial void distribution and correlates it to weld‐induced changes, mechanical performance, and failure within welded CMF panels.
Chinmaya Prerana Inguva   +2 more
wiley   +1 more source

Scalable Hierarchical‐Colored Passive Cooling Metapaint for Outdoor Facility

open access: yesEcoMat
The temperature of metal‐based facilities rises significantly under high outdoor solar irradiation, leading to serious safety accidents. The application of active cooling technology poses challenges due to its high energy consumption, especially in ...
Maiping Yang   +12 more
doaj   +1 more source

An Experimental and Numerical Case Study of Passive Building Cooling with Foundation Pile Heat Exchangers in Denmark

open access: yesEnergies, 2019
Technologies for energy-efficient cooling of buildings are in high demand due to the heavy CO2 footprint of traditional air conditioning methods. The ground source heat pump system (GSHP) installed at the Rosborg Gymnasium in Vejle (Denmark) uses ...
Søren Erbs Poulsen   +3 more
doaj   +1 more source

Thermosiphon radiation capacity modelling for the cooling of dwellings

open access: yesCase Studies in Thermal Engineering, 2020
The cooling of buildings and homes, necessary to achieve comfort in northwestern Mexico, where the summer weather is usually very warm and dry, demands a very high electricity budget.
M.A. Porta-Gándara   +2 more
doaj   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

A REVIEW OF GROUND HEAT EXCHANGERS FOR COOLING APPLICATION IN THE MALAYSIAN CLIMATE

open access: yesJournal of Mechanical Engineering and Sciences, 2015
The ground heat exchanger (GHE) is one of the energy sources that has been identified since the 1970s which is able to produce sustainable energy for cooling which is in passive side.
T.M. Yusof, S. Anuar, H. Ibrahim
doaj   +1 more source

Home - About - Disclaimer - Privacy