Results 61 to 70 of about 2,411,267 (285)

A Bee Colony Neuro-Fuzzy Controller to Improve Well Premixed Combustion

Journal of Mechanical Engineering, 2023
In order to actively control combustion reaction, this study proposes an adaptive neuro-fuzzy (ANFIS) control scheme of interaction between premixed combustion reaction and acoustic flame perturbation where the flame pressure movement will be considered ...
Debbah Abdesselam, Kelaiaia Ridha, Kerboua Adlen   +2 more
doaj   +1 more source

MXene‐Based Electrocatalysts for Sustainable Nitrogen Conversion: From Ammonia Oxidation to Nitrogen and Nitrate Reduction

Advanced Materials Interfaces, EarlyView.
This review compares MXene‐based electrocatalysis for ammonia oxidation, nitrogen reduction, and nitrate reduction, highlighting reaction‐dependent differences in catalytic performance and stability. MXenes are generally more compatible with cathodic nitrogen and nitrate reduction, whereas anodic ammonia oxidation raises stability concerns.
Afaf Salah Eid, Alaa M. Ibrahim, Soon Hyung Kang   +2 more
wiley   +1 more source

DEM-CFD modeling of limestone flowing-down in a combustion field in a rotary kiln

Journal of Thermal Science and Technology
A new efficient numerical approach for Reynold-averaged Navier–Stokes (RANS) simulation coupled with the discrete element method (DEM) is developed for the calcination of limestone flowing down in a real kiln, considering the combustion reaction of ...
Susumu TSUCHIYA, Masaya MUTO, Yuta UMENO, Takayuki NISHIIE, Fumiteru AKAMATSU, Ryoichi KUROSE   +5 more
doaj   +1 more source

Chemical kinetic simulation of kerosene combustion in an individual flame tube

Journal of Advanced Research, 2014
The use of detailed chemical reaction mechanisms of kerosene is still very limited in analyzing the combustion process in the combustion chamber of the aircraft engine.
Wen Zeng, Shuang Liang, Hai-xia Li, Hong-an Ma   +3 more
doaj   +1 more source

In-situ Combustion Simulation from Laboratory to Field Scale

Geofluids, 2021
In-situ combustion simulation from laboratory to field scale has always been challenging, due to difficulties in deciding the reaction model and Arrhenius kinetics parameters, together with erroneous results observed in simulations when using large-sized
Zhouyuan Zhu, Canhua Liu, Yajing Chen, Yuning Gong, Yang Song, Junshi Tang   +5 more
doaj   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

Experimental Model Development of Oxygen-Enriched Combustion Kinetics on Porous Coal Char and Non-Porous Graphite

Energies, 2017
The effect of oxygen-enriched air on low-rank coal char combustion was experimentally investigated. In this work, a coal-heating reactor equipped with a platinum wire mesh in the reaction chamber was used to analyze the combustion temperature, reaction ...
Gyeong-Min Kim, Jong-Pil Kim, Kevin Yohanes Lisandy, Chung-Hwan Jeon   +3 more
doaj   +1 more source

Defect‐Engineered ZnO Nanowire Arrays for Flexible Room‐Temperature Hydrogen Sensors

Advanced Materials Technologies, EarlyView.
Fabrication process of patterned ZnO nucleation sites on a flexible polyimide (PI) substrate. Top/tilted‐view SEM images of ordered ZnO nanoflower arrays confined within patterned circular regions. AFM topography map with height data revealing a disk‐array structure, where the patterned regions (marked by a red dot circle) are elevated by ∼2 µm ...
Jun‐Ting Wang, Imran Khan, Jhen‐De You, Fan‐Hua Kong, Chang‐Mou Wu, Po‐Kai Chiu, Ray‐Hua Horng, Jinn P. Chu   +7 more
wiley   +1 more source

Reaction-diffusion effects on species mixing rates in turbulent premixed methane-air combustion

, 2009
The scalar mixing time scale, a key quantity in many turbulent combustion models, is investigated for reactive scalars in premixed combustion. Direct numerical simulations of threedimensional, turbulent Bunsen flames with reduced methane-air chemistry ...
Grout, R.W., Sankaran, R., Richardson, E.S., Chen, J.H.   +3 more
core  

Microfabrication of Soft Millirobots Propelled by Low Voltage Electrohydraulic Actuators

Advanced Materials Technologies, EarlyView.
Manual layer‐by‐layer assembly is replaced by wafer‐level MEMS batch fabrication for compliant polymer‐based electrohydraulic actuators. The microfabricated devices integrate sacrificially defined microcavities, Parylene‐C‐sealed inlets, and multilayer polymer–metal films.
Shai Shmulevich, Florian Hartmann, Herbert Shea   +2 more
wiley   +1 more source