Results 31 to 40 of about 56,122 (303)

Electricity powering combustion: hydrogen engines [PDF]

, 2012
Hydrogen is ameans to chemically store energy. It can be used to buffer energy in a society increasingly relying on renewable but intermittent energy or as an energy vector for sustainable transportation.
Boyer, Brad, Eichlseder, Helmut, Gerbig, Falk, Naganuma, Kaname, Tanno, Shiro, Verhelst, Sebastian, Wallner, Thomas   +6 more
core   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Sol–Gel Derived Polymer Precursors for Stereolithography of ZrC

Advanced Engineering Materials, EarlyView.
ZrC is a critical material target for extreme temperature conditions. This report describes a protocol for preparing ZrC ceramics via stereolithography and examines the impact of the polymer matrix on carbothermal reduction and mechanical stability of 3D printed ZrC.
Charles J. Rafalko, Evelyn Wang, Michael A. Hickner   +2 more
wiley   +1 more source

Flame Front Propagation in an Optical GDI Engine under Stoichiometric and Lean Burn Conditions

Energies, 2017
Lean fueling of spark ignited (SI) engines is a valid method for increasing efficiency and reducing nitric oxide (NOx) emissions. Gasoline direct injection (GDI) allows better fuel economy with respect to the port-fuel injection configuration, through ...
Santiago Martinez, Adrian Irimescu, Simona Silvia Merola, Pedro Lacava, Pedro Curto-Riso   +4 more
doaj   +1 more source

Reduction of nitric oxide emissions from a combustor [PDF]

, 1980
A turbojet combustor and method for controlling nitric oxide emissions by employing successive combustion zones is described. After combustion of an initial portion of the fuel in a primary combustion zone, the combustion products of the primary zone are
Craig, R. A., Pritchard, H. O.
core   +1 more source

Population of Nonmetallic Inclusions in Liquid High‐Silicon Electrical Steel in Contact With MgO–C Refractories Based on Recyclates and Environmentally Friendly Binders

Advanced Engineering Materials, EarlyView.
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert, Matheus Roberto Bellé, Florian Kerber, Dinesh Kumar Gunasekar, Hans‐Jörn Weddige, Christos G. Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Effects of Lean Burn on Combustion and Emissions of a DISI Engine Fueled with Methanol–Gasoline Blends

Energies
Methanol has significant potential as an alternative fuel for internal combustion engines. Using methanol–gasoline blends with lean-burn technology in traditional spark-ignition engines can enhance fuel economy and reduce emissions.
Miaomiao Zhang, Jianbin Cao
doaj   +1 more source

Pollutant Formation during the Occurrence of Flame Instabilities under Very-Lean Combustion Conditions in a Liquid-Fuel Burner

Energies, 2017
Recent advances in gas turbine combustor design are aimed at achieving low exhaust emissions, hence modern aircraft jet engines are designed with lean-burn combustion systems.
Maria Grazia De Giorgi, Stefano Campilongo, Antonio Ficarella, Gianluigi De Falco, Mario Commodo, Andrea D’Anna   +5 more
doaj   +1 more source

Experimental study on combustion and emission of ternary-fuel combined supply SI engine with oxyhydrogen/butanol/gasoline at different excess air ratios

Case Studies in Thermal Engineering, 2023
Both oxyhydrogen and butanol are renewable alternative fuels. Based on gasoline/butanol compound injection mode, although the introduction of oxyhydrogen can effectually enhance the optimal BDIr (butanol direct injection ratio), it also leads to an ...
Zhe Zhao, Yan Huang, Zhen Shang, Xiumin Yu, Ping Sun, Luquan Ren, Tao Sang, Ming Li, Ziyuan Li   +8 more
doaj   +1 more source

Combustion Characteristics and Laminar Flame Speed of Premixed Ethanol-Air Mixtures with Laser-Induced Spark Ignition [PDF]

, 2018
Laser-induced spark-ignition (LISI) has an advanced ignition technique with a few benefits over spark ignition. In this study, flame morphology, laminar flame characteristics and combustion characteristics of premixed anhydrous ethanol and air mixtures ...
Badawy, Bechtold, Bradley, Dirrenberger, Frankel, Heywood, Jiang, Kelley, Kopecek, Kuang, Ma, Matalon, Morsy, Rassweiler, Rassweiler, Srivastava, Sung, Wang, Wang, Weinrotter, Wu, Wu, Xu, Xu, Xu   +24 more
core   +1 more source