Results 71 to 80 of about 21,289 (291)

Empirical study of acoustic instability in premixed flames: Measurements of flame transfer function

, 2012
In order to conform to pollutant-control regulations and minimize NOx emissions, modern household boilers and central heating systems are moving toward premixed combustors.
Hojatpanah, Roozbeh
core   +1 more source

Ultra‐High‐Throughput Discovery of Multifunctional Polyphenolic Coatings on Droplet Microarrays

Advanced Materials, EarlyView.
An ultra‐high‐throughput (UHT) combinatorial strategy enables the miniaturized synthesis and screening of ≈30 000 polyamine‐polyphenolic (PaPp) coatings using droplet microarrays (DMA). This approach reveals hundreds of previously unknown fluorescent, redox‐active, and antibacterial materials, including multifunctional, cell‐compatible surfaces ...
Vania Tanda Widyaya, Joaquín E. Urrutia Gómez, Paul Reuß, Alexander Welle, Rolf A. Gattung, Jana Mayer, Peter Krolla, Markus Reischl, Pascal Friederich, Anna A. Popova, Thomas Schwartz, Pavel A. Levkin   +11 more
wiley   +1 more source

SIMULACIÓN BIDIMENSIONAL DE UN SISTEMA DE COMBUSTIÓN INESTABLE TWO-DIMENSIONAL SIMULATION OF AN UNSTABLE COMBUSTION SYSTEM

Ingeniare: Revista Chilena de Ingeniería, 2010
La inestabilidad en la combustión es una condición indeseada en algunos sistemas de combustión como en turbinas de gas por ejemplo. Se refiere a la presencia autogenerada de oscilaciones en la presión que pueden afectar a la cámara de combustión y de ...
Javier Achury Varila, Carlos Duque Daza, Carlos Galeano Urueña   +2 more
doaj  

Application of a three-step approach for prediction of combustion instabilities in industrial gas turbine burners

Journal of the Global Power and Propulsion Society, 2018
Recently, because of environmental regulations, gas turbine manufacturers are restricted to produce machines that work in the lean combustion regime. Gas turbines operating in this regime are prone to combustion-driven acoustic oscillations referred as ...
Dmytro Iurashev, Giovanni Campa, Vyacheslav V. Anisimov, Ezio Cosatto, Luca Rofi, Edoardo Bertolotto   +5 more
doaj   +1 more source

Toward a Unified Mechanistic Understanding of Polymer Electrolytes for Advanced Solid‐State Batteries

Advanced Materials, EarlyView.
Polymer electrolytes (PEs) are often indiscriminately grouped as “solid polymer electrolytes (SPEs)”, despite fundamental differences in their ion‐transport mechanisms. This Perspective establishes a mechanism‐based framework that distinguishes gel, quasi‐solid, and all‐solid polymer electrolytes based on their dominant ion‐transport pathways.
Jing Chen, Han Chen, Michel Armand, Gunther Brunklaus, Jang Wook Choi, Yan‐Bing He, Bumjoon J. Kim, Seung Woo Lee, Stefano Passerini, Meera Mohankumar, Patrick Theato, Marnix Wagemaker, Martin Winter, Qiang Zhang, Shujiang Ding, Zhiqun Lin   +15 more
wiley   +1 more source

Analytical modeling of thermoacoustic instability influences in gas turbine combustors: A detailed parameter sensitivity analysis

Case Studies in Thermal Engineering
In this study, the effects of various system parameters on combustion instability were numerically identified through a network-based thermoacoustic model using the concept of a transfer function.
Seonyeong Kim, Daesik Kim
doaj   +1 more source

Development and characterization of novelly grown fire-resistant fungal fibers

Scientific Reports, 2022
This study conducted a comprehensive characterization and analyses on the fire-resistant behaviors of novel fungal fibers grown with substrate containing Silica (Si) source at multiple scales.
Xijin Zhang, Yanjun Li, Xudong Fan, Gary Wnek, Ya-Ting T. Liao, Xiong Yu   +5 more
doaj   +1 more source

Enhanced Photocatalytic H2O2 Production on Terpyridine‐Based Acrylonitrile‐Linked Covalent Organic Frameworks with Asymmetric Localized Electron Distribution

Advanced Materials, EarlyView.
Asymmetric localized electron distribution has been optimized in covalent organic frameworks to enhance *O2 adsorption and facilitate charge transfer, boosting photocatalytic two‐electron transfer oxygen reduction toward H2O2 production from water and air.
Qinglan Zhao, Mengmeng Ce, Hengtao Lei, Tianyun Jin, Zhipeng Xie, Yushen Liu, Shengyi Yang, Xinwen Ou, Mohammad Farhadpour, Song‐Zhu Kure‐Chu, Xuan‐He Liu, Liang Zhang, Jimmy C. Yu   +12 more
wiley   +1 more source

Predicted Thermoacoustic Flame Response at Megawatt Scale in a Near-Stoichiometric Atmospheric Industrial Furnace

Energies
While gas-turbine combustors have received much research attention, the forced response of large atmospheric industrial flames is much less studied. To improve the understanding of thermoacoustic instabilities in industrial combustion systems, the forced
Jesse Hofsteenge, Jim Kok
doaj   +1 more source

Sensitivity analysis of transfer functions of laminar flames

Combustion and Flame, 2011
The sensitivity of laminar premixed methane/air flames responses to acoustic forcing is investigated using direct numerical simulation to determine which parameters control their flame transfer function. Five parameters are varied: (1) the flame speed s L , (2) the expansion angle of the burnt gases a, (3) the inlet air temperature T a , (4) the inlet ...
Duchaine, Florent, Boudy, F., Durox, D., Poinsot, Thierry   +3 more
openaire   +2 more sources