Results 111 to 120 of about 538,515 (317)

Research on the Development Mechanism of Air Thermal Miscible Flooding in the High Water Cut Stage of Medium to High Permeability Light Oil Reservoirs

Energies
Currently, the development of oil reservoirs with high water cut faces numerous challenges, including poor economic efficiency, difficulties in residual oil recovery, and a lack of effective development technologies.
Daode Hua, Changfeng Xi, Peng Liu, Tong Liu, Fang Zhao, Yuting Wang, Hongbao Du, Heng Gu, Mimi Wu   +8 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

THERMOCOMPOSTING OF AGRI-FOOD WASTE: OPTIMIZATION OF ENERGY RECOVERY [PDF]

Thermocomposting represents a promising strategy for sustainable energy recovery from agri-food waste. This study investigates the thermal performance of six bench-scale compost reactors using different feedstock compositions, including varying biochar ...
Maria Cristina Lavagnolo, Federico Illuminati, Marco Schiavon   +2 more
core  

Modeling of Hydro-Pneumatic Energy Storage Using Pump Turbines [PDF]

, 2011
Modelling of a hydro-pneumatic energy storage system is presented in this paper. Hydro pneumatic storage aims to combine the good efficiency of hydraulic energy conversion and the space flexibility of pneumatic storage.
COLAS, Frédéric, DAZIN, Antoine, ORTEGO, Egoï, CAIGNAERT, Guy, COUTIER-DELGOSHA, Olivier   +4 more
core  

Intelligent Diagnosis Method for Typical Co-frequency Vibration Faults of Rotating Machinery Based on SAE and Ensembled ResNet-SVM

Chinese Journal of Mechanical Engineering
Intelligent fault diagnosis is an important method in rotating machinery fault diagnosis and equipment health management. To deal with co-frequency vibration faults, a type of typical fault in rotating machinery, this paper proposes a fault diagnosis ...
Xiancheng Zhang, Xin Pan, Hao Zeng, Haofu Zhou   +3 more
doaj   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Waste Heat recovery potential assessment in the European Industry [PDF]

, 2018
European primary energy consumptions (in the order of a few GWh/yr) are mostly due to industrial processes that are characterized by a multitude of energy losses.
Christodoulides, Paul, Panayiotou, Gregoris, Bianchi, Giuseppe, Florides, Georgios A., Tassou, Savvas A.   +4 more
core  

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Modular Critical Element Recycling Platform Using a Nanoporous Additively Manufactured Gyroid

Advanced Engineering Materials, EarlyView.
A modular recycling platform integrates 3D‐printed nanoporous gyroid structures to enable efficient critical element recovery. This system utilizes a hierarchical architecture, combining macroscopic channels with polymerization‐induced nanoscale porosity. By systematically tuning structural wall thickness and resin formulation, the platform achieves an
Xiangyu Gao, Keldy Mason, Mert Gülçür, Rachel Paddock‐Lamb, Prince Alvin Fofanah, Zachariah A. Page, Michael Cullinan   +6 more
wiley   +1 more source

Energy requirement for north sea oil by secondary and tertiary production methods. EUR 6062 EN. Energy [PDF]

, 1978
This paper presents a review of the resources necessary to develop 13 UK offshore oil fields for purposes of obtaining primary recovered oil. An estimate is provided of the increasing energy requirement for a metric ton of North Sea oil due to secondary ...
Klitz, J.K., Peckham, R.J.
core