Results 61 to 70 of about 1,992 (213)

Computer simulations of thermal phenomena in surface heating process using the real distribution of Yb:YAG laser power

MATEC Web of Conferences, 2018
This work concerns mathematical and numerical modelling of temperature field during Yb:YAG laser heating of sheets made of S355 steel with the motion of liquid steel in the fusion zone taken into account.
Kubiak Marcin, Dekýš Vladimír, Domański Tomasz, Novák Pavol, Saternus Zbigniew   +4 more
doaj   +1 more source

An Experimental Study of the Vapor Temperature in the Reaction Zone for Producing Liquid from Camphor Wood in a Non-sweeping Gas Fixed-bed Pyrolysis Reactor

International Journal of Technology, 2018
The liquids produced by the pyrolysis process with biomass as the raw material are popularly called bio-oil. The reaction zone temperature in the pyrolysis process affects the liquid yield in a non-sweeping gas fixed-bed reactor.
Nasruddin A Abdullah, Jordy Tila, Imansyah Ibnu Hakim, Nandy Putra, Raldi A Koestoer   +4 more
doaj   +1 more source

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

Advanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang, Aparajita Pramanik, Sandipan Sen, Shubhashis Dixit, Marcel Muench, R. J. Vikram, Daniel Schliephake, Yolita M. Eggeler, Ankur Chauhan, Martin Heilmaier, Alexander Kauffmann   +10 more
wiley   +1 more source

Field Measurements and Numerical Simulation for the Definition of the Thermal Stratification and Ventilation Performance in a Mechanically Ventilated Sports Hall

Energies, 2019
Sports halls must meet strict requirements for energy and indoor air quality (IAQ); therefore, there is a great challenge in the design of the heating, ventilation, and air conditioning (HVAC) systems of such buildings.
Lina Seduikyte, Laura Stasiulienė, Tadas Prasauskas, Dainius Martuzevičius, Jurgita Černeckienė, Tadas Ždankus, Mantas Dobravalskis, Paris Fokaides   +7 more
doaj   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Simulation and optimization of heat transfer in underground in-situ shale upgrading

Youqi dizhi yu caishoulu
In-situ heating and upgrading technology is a key method to improve the recovery efficiency of shale oil and gas with medium-low maturity. It aims to simulate and optimize the heat transfer effects of underground shales during the in-situ heating and ...
LI Yuan, ZHONG Anhai, QIAN Qin, YU Denglang, ZHANG Yuzhe, ZHONG Yanlei, WANG Dan   +6 more
doaj   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

Development and testing of a high-precision static calibration device for aviation thin-film thermocouples

Scientific Reports
This study aims to develop a novel calibration device to address the challenges of inadequate temperature field uniformity, significant temperature fluctuation, and less reliability in existing static calibration devices for thin-film thermocouples.
Jiarui Yang, Chengbin Fang, Zhenzhen Xu, Chang’an Zhou, Kaixing Zhang   +4 more
doaj   +1 more source

An integrated model for productivity prediction of cyclic steam stimulation with horizontal well

Energy Science & Engineering, 2019
As the accurate productivity prediction of cyclic steam stimulation with horizontal well (CSSHW) is essential for its effective utilization in heavy oil reservoirs, a novel integrated model for predicting productivity of CSSHW was proposed in this paper.
Congge He, Anzhu Xu, Zifei Fan, Lun Zhao, Fachao Shan, Bing Bo   +5 more
doaj   +1 more source