Results 101 to 110 of about 27,437 (306)

Effect of the inner-surface baffles on the tangential acoustic mode in the cylindrical combustor

Open Physics, 2020
The combustion instability in a propulsion system is a ubiquitous problem. The radial baffles usually installed on the injector faceplate eliminate the combustion instability (acoustic pressure oscillation) in the propulsion system.
Duan Runze, Cao Yifan, Duan Hongbin, Tian Liang, Tian Liting, Du Cong, Liu Liansheng, Rong Nan, Li Tiansheng   +8 more
doaj   +1 more source

The prediction of nonlinear three dimensional combustion instability in liquid rockets with conventional nozzles [PDF]

An analytical technique is developed to solve nonlinear three-dimensional, transverse and axial combustion instability problems associated with liquid-propellant rocket motors. The Method of Weighted Residuals is used to determine the nonlinear stability
Powell, E. A., Zinn, B. T.
core   +1 more source

Combustion in thermonuclear supernova explosions

, 2017
Type Ia supernovae are associated with thermonuclear explosions of white dwarf stars. Combustion processes convert material in nuclear reactions and release the energy required to explode the stars.
A Liñan, A Maier, AC Calder, AM Khokhlov, AM Khokhlov, AM Khokhlov, AM Lisewski, AP Jackson, AP Jackson, AY Poludnenko, CA Meakin, CJ Hansen, D Kasen, DM Townsley, DM Townsley, EF Toro, EP Hicks, F Ciaraldi-Schoolmann, F Ciaraldi-Schoolmann, FK Röpke, FK Röpke, FK Röpke, FK Röpke, FK Röpke, FK Röpke, FK Röpke, FK Röpke, FK Röpke, FK Röpke, FK Röpke, FK Röpke, FX Timmes, FX Timmes, G Damköhler, GC Jordan IV, GC Jordan IV, GC Jordan IV, GI Barenblatt, GJ Sharpe, I Golombek, IR Seitenzahl, IR Seitenzahl, JC Niemeyer, JC Niemeyer, JHS Lee, JR Boisseau, KS Marquardt, LD Landau, M Fink, M Fink, M Kromer, M Reinecke, M Reinecke, M Reinecke, N Peters, N Vladimirova, R Moll, R Pakmor, R Pakmor, R Pakmor, S Osher, SA Sim, SE Woosley, ST Ohlmann, VN Gamezo, VN Gamezo, VN Gamezo, W Döring, W Fickett, W Schmidt, W Schmidt, WR Hix, YB Zel’dovich, YB Zel’dovich, YB Zel’dovich   +74 more
core   +1 more source

Extending Battery Usage Time of a Heavy‐Duty Mecanum‐Wheeled Autonomous Electric Vehicle Used in Iron–Steel Industry by Considering Wheel Slippage

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
It is a fact that slippage causes tracking errors in both longitudinal and lateral directions which results to have less travel distance in tracking a reference trajectory. Less travel distance means having energy loss of the battery and carrying loads less than planned.
Gokhan Bayar, Goktug Hambarci, Ali Sezai Demirel   +2 more
wiley   +1 more source

Chaotic Combustion in Spark Ignition Engines

, 2002
We analyse the combustion process in a spark ignition engine using the experimental data of an internal pressure during the combustion process and show that the system can be driven to chaotic behaviour.
Abarbanel, Antoni, Chatterjee, Grzegorz Litak, Heywood, Jacek Czarnigowski, Kazimierz Szabelski, Litak, Litak, Mirosław Wendeker, Pomeau   +10 more
core   +2 more sources

Methane Pyrolysis Performance in Catalytic Molten Media for Hydrogen Production From the Perspective of Bubble Column Reactor Design and Configuration

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT In the hydrogen production routes from natural gas (methane), methane pyrolysis offers a cleaner option than the established steam methane reforming by producing CO2‐free hydrogen. However, in fixed bed reactors over solid catalysts, this technology experiences rapid catalyst deactivation due to carbon (coke) deposition encapsulating its ...
Muhammad Irfan Fakarudin, Luqmanulhakim Baharudin, Matthew J. Watson, Wan Nor Roslam Wan Isahak   +3 more
wiley   +1 more source

Occurrence conditions for unsteady combustions in shock-induced combustions around spherical projectiles

Nihon Kikai Gakkai ronbunshu, 2017
Shock-induced combustion around a spherical body was experimentally investigated by launching the projectile at supersonic speed into a combustible mixture. This study focused on occurrence conditions for an unsteady combustion which was characterized as
Shinichi MAEDA, Isshu YOSHIKI, Shoichiro KANNO, Keita TOMITA, Tetsuro OBARA   +4 more
doaj   +1 more source

Metal‐CO2 Batteries: By‐Product Challenges and Practical Pathways for Low CO2 Concentration Environment

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Metal‐CO2 batteries have recently emerged as an intriguing class of energy storage and conversion devices that simultaneously utilize and manage carbon dioxide. Originating from studies of CO2 contamination in metal‐air batteries, these systems have evolved into a distinct research direction, offering insights into CO2 electrochemistry and its
Sungmin Choi, Sooyeon Seok, Changmin Kim
wiley   +1 more source

LIQUID ROCKET COMBUSTION CHAMBER ACOUSTIC CHARACTERIZATION DOI 10.5028/jatm.2010.02038810

Journal of Aerospace Technology and Management, 2011
Over the last 40 years, many solid and liquid rocket motors have experienced combustion instabilities. Among other causes, there is the interaction of acoustic modes with the combustion and/or fluid dynamic processes inside the combustion chamber ...
Rogério Pirk, Carlos d'Andrade Souto, Dimas Donizeti da Silveira, Cândido Magno de Souza, Luiz Carlos Sandoval Góes   +4 more
doaj  

Thermal Calculations for Co‐Firing of Hydrogen/Ammonia and Coal in 660‐MW Coal‐Fired Boilers

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT To achieve a clean energy transition under the dual carbon goals, blending hydrogen/ammonia into pulverized coal boilers represents a key technological pathway. Different hydrogen/ammonia co‐firing ratios (5%–50%) are investigated for their impact on the thermodynamic characteristics of 660‐MW supercritical boiler at 100% and 20% boiler ...
Yaodong Da, Nana Hou, Weipeng Wang, Yongqiang Chang, Xin Liu, Feng Pan, Defu Che, Lei Deng   +7 more
wiley   +1 more source