Results 81 to 90 of about 93,500 (265)

An Indirect Method for Determining the Local Heat Transfer Coefficient of Gas Flows in Pipelines. [PDF]

Sensors (Basel), 2022
Plotnikov L, Plotnikov I, Osipov L, Slednev V, Shurupov V.   +4 more
europepmc   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

STUDY OF THE HEAT TRANSFERIN THE SUPERHEATER REGION OF BOILE,R

Journal of Engineering
The superhcater zone of the boiler is the convective heat transfer region of the boiler, that is the heat in this region mostly transferred by the convection between the flew gases outside and steam inside tubes.
Majid H. M Al-Shoorafaa, Hussain Y. Mahmood, Hussain M. ALMaraiaty   +2 more
doaj   +1 more source

Machine Learning‐Supported Analysis for Predicting and Visualizing Nonlinear Relationships Between Material Properties in Electroplated Chromium Layers

Advanced Engineering Materials, EarlyView.
This study applies machine learning regression to predict chromium layer thickness in decorative trivalent chromium electroplating, using 441 experiments from laboratory‐scale (1L) and pilot‐scale (14L) setups. Tree‐based models, particularly CatBoost, outperformed linear regression by capturing nonlinear parameter interactions (R2$R^2$ up to 0.77 ...
Christoph Baumer, Christopher Mai, Luca Eisentraut, Andreas Bund, Ricardo Buettner   +4 more
wiley   +1 more source

low Boiling Heat Transfer Characteristics of R290 in 5mm Small-diameter Tubes

Zhileng xuebao, 2019
The characteristics of heat transfer for R290 flow boiling in 5 mm small diameter tubes were investigated experimentally with a focus on the effects of heat flux, mass flow rate, and saturation temperature on the surface coefficient of boiling heat ...
He Kuan, Liu Jianhua, Yu Xiaoxiao
doaj  

Forced Convective Heat Transfer Coefficient Measurement of Low Concentration Nanorods ZnO-Ethylene Glycol Nanofluids in Laminar Flow. [PDF]

Nanomaterials (Basel), 2022
Alam MS, Nahar B, Gafur MA, Seong G, Hossain MZ.   +4 more
europepmc   +1 more source

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

Advanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal, Cevher Kursat Macit, Merve Ayık, Hakan Tutumlu   +3 more
wiley   +1 more source

Flow condensation heat transfer coefficient and pressure drop data for R134a alternative refrigerants R513A and R450A in a 0.95-mm-diameter minichannel. [PDF]

Data Brief, 2022
Morrow JA, Derby MM.
europepmc   +1 more source

Defect Evolution and Mechanical Performance of Fused Filament Fabrication‐Manufactured 17‐4PH Stainless Steel Revealed by X‐Ray Computed Tomography

Advanced Engineering Materials, EarlyView.
X‐ray computed tomography reveals how process‐induced defects evolve from green to sintered states in Fused Filament Fabrication (FFF)‐manufactured 17‐4PH stainless steel. Internal porosity, weakest cross‐sections, and fracture locations show strong correlation with tensile performance, demonstrating the potential of computed tomography (CT)‐based ...
György Ledniczky, Márk Sárközi, Ibolya Zsoldos, Zoltán Weltsch   +3 more
wiley   +1 more source

Determination of Heat Transfer Coefficient for Air-Atomized Water Spray Cooling and Its Application in Modeling of Thermomechanical Controlled Processing of Die Forgings. [PDF]

Materials (Basel), 2022
Apostoł M, Skubisz P, Adrian H.
europepmc   +1 more source