Results 41 to 50 of about 108,068 (160)

3D convolutional selective autoencoder for instability detection in combustion systems

Energy and AI, 2021
While analytical solutions of critical (phase) transitions in dynamical systems are abundant for simple nonlinear systems, such analysis remains intractable for real-life dynamical systems. A key example is thermoacoustic instability in combustion, where
Tryambak Gangopadhyay, Vikram Ramanan, Adedotun Akintayo, Paige K Boor, Soumalya Sarkar, Satyanarayanan R Chakravarthy, Soumik Sarkar   +6 more
doaj   +1 more source

Thermoacoustic stability prediction using classification algorithms

Data-Centric Engineering, 2022
Predicting the occurrence of thermoacoustic instabilities is of major interest in a variety of engineering applications such as aircraft propulsion, power generation, and industrial heating. Predictive methodologies based on a physical approach have been
Renaud Gaudron, Aimee S. Morgans
doaj   +1 more source

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

Convective Velocity Perturbations and Excess Gain in Flame Response as a Result of Flame-Flow Feedback

Fluids, 2022
Convective velocity perturbations (CVPs) are known to play an important role in the response of flames to acoustic perturbations and in thermoacoustic combustion instabilities.
Thomas Steinbacher, Wolfgang Polifke
doaj   +1 more source

Advances and Challenges in Thermoacoustic Network Modeling for Hydrogen and Ammonia Combustors

Energies
The transition to low-carbon energy systems has heightened interest in hydrogen and ammonia as sustainable alternatives to traditional hydrocarbon fuels.
Seungmin Guk, Jaehoon Lee, Juwon Kim, Minwoo Lee   +3 more
doaj   +1 more source

Application of laser-based instrumentation for measurement of time-resolved temperature and velocity fields in the thermoacoustic system [PDF]

, 2010
This work aims to develop reliable laser-based measurement techniques to enable fundamental heat transfer and fluid flow studies in thermoacoustic systems.
Yu, Z., Jaworski, A.J., Shi, L., Yu, Zhibin, Yu, Z, Shi, L, Shi, Lei, Jaworski, Artur J, Jaworski, AJ   +8 more
core   +1 more source

Selection and experimental evaluation of low-cost porous materials for regenerator applications in thermoacoustic engines [PDF]

, 2010
This paper aims at evaluating three selected low-cost porous materials from the point of view of their suitability as regenerator materials in the design of thermoacoustic travelling-wave engines.
Yu, Z., Jaworski, A.J., Abduljalil, Abdulrahman S., Artur J. Jaworski, Yu, Zhibin, Yu, Z, Jaworski, Arthur J., Abduljalil, A.S., Abdulrahman S. Abduljalil, Zhibin Yu, Jaworski, AJ, Abduljalil, AS   +11 more
core   +1 more source

Flame dominated thermoacoustic instabilities in a system with high acoustic losses [PDF]

, 2016
The thermoacoustic stability behaviour of a flame is experimentally investigated in the presence of large acoustic losses. Recently it has become clear that under such conditions an instability can occur due to an intrinsic local feedbackloop at the heat
Hoeijmakers, P.G.M., Nijmeijer, H., Kornilov, V.N., de Goey, L.P.H.; id_orcid, Lopez Arteaga, I., Kornilov, Viktor,, Arteaga, Ines Lopez,, de Goey, Philip, Hoeijmakers, Maarten, Nijmeijer, Henk   +9 more
core   +2 more sources

Application of linear hydrodynamic stability analysis to reacting swirling combustor flows

Journal of Fluid Science and Technology, 2014
This paper presents recent research activities on coherent structures in combustor flows employing linear hydrodynamic stability theory. Large-scale coherent structures play an important role in swirling combustor flows.
Christian Oliver PASCHEREIT, Steffen TERHAAR, Bernhard ĆOSIĆ, Kilian OBERLEITHNER   +3 more
doaj   +1 more source

Large‐Scale Applications of Plasma Technologies: Progresses and Challenges

High Voltage, EarlyView.
ABSTRACT Plasma technologies convert electrical power into energetic electrons, ions, reactive species, radiation and heat, thereby breaking through the bottleneck of purely thermal or chemical routes and bringing impressive changes to our world. This roadmap reviews the progress and challenges of plasma technologies from a large‐scale and application ...
Pankaj Attri, Liuyang Bai, Dmitry Batomunkuev, Xueke Che, Guoxing Chen, Zhitong Chen, Wei Cui, Liguang Dou, Zhi Fang, Yangyang Fu, Fausto Gallucci, Yiming Guo, Bangdou Huang, Yinghong Li, Sirui Li, Hua Liang, Liangliang Lin, Dingxin Liu, Xiangyang Liu, Xinpei Lu, Ruonan Ma, Lanlan Nie, Guanghui Niu, Yuge Ouyang, Tao Shao, Jing Sun, Yong Tang, Xin Tu, Sergey P. Vashchenko, Hang Wang, Xianjie Wang, Anke Weidenkaff, Yun Wu, Haohan Xie, Shaojun Xu, Zongxian Yang, Fangli Yuan, Cheng Zhang, Hao Zhang, Jishen Zhang, Shuai Zhang, Yejian Zhang, Zhe Zhang, Zhibo Zhang, Peng Zhao, Shicheng Zhao, Linlin Zhong, Renwu Zhou, Zhenhua Zhou, Xi Zhu, Yifei Zhu, Haohua Zong   +51 more
wiley   +1 more source