Results 41 to 50 of about 1,024 (213)
Energy and AI, 2021 The intermittent nature of operation and unpredictable availability of renewable sources of energy (e.g., wind and solar) would require the combustors in fossil-fuel power plants, sharing the same grid, to operate with large turn-down ratios. This brings
Sudeepta Mondal +3 more
doaj +1 more source
Energy Applications of Magnetocaloric Materials
Advanced Energy Materials, Volume 10, Issue 10, March 10, 2020., 2020 The quest for energy‐efficient and environmentally friendly energy conversion technologies is more urgent than ever. Magnetocaloric energy conversion is among the best available alternatives to existing technologies. This article gives an overview of energy applications of magnetocaloric materials.
Andrej Kitanovski
wiley +1 more source
Modelling nonlinear thermoacoustic instability in an electrically heated Rijke tube [PDF]
, 2011 An analysis of thermoacoustic instability is performed for a horizontal Rijke tube with an electrical resistance heater as the heat source. The governing equations for this fluid flow become stiff and are difficult to solve by the computational fluid ...
Mariappan, Sathesh +3 more
core +1 more source
Prediction of thermoacoustic instability in gas turbine combustors [PDF]
, 2019 This thesis numerically predicts thermoacoustic instability in two typical gas turbine combustors. Incompressible large eddy simulation (LES) is used as the main numerical tool to simulate the heat release response of a flame to upstream acoustic ...
Xia, Yu
core +1 more source
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
Applied Sciences, 2023 Self-excited thermoacoustic instability (SETAI) is an undesirable and dangerous phenomenon in combustion systems. However, its control is difficult, thus greatly limiting the development of combustion technology.
Yongbo Du +6 more
doaj +1 more source
Subcritical bifurcation and bistability in thermoacoustic systems [PDF]
, 2013 This paper analyses subcritical transition to instability, also known as triggering in thermoacoustic systems, with an example of a Rijke tube model with an explicit time delay.
Subramanian, Priya +2 more
core +1 more source
International Journal of Aerospace Engineering, 2020 We seek to ascertain and understand source terms that drive thermoacoustic instability and acoustic radiation. We present a new theory based on the decomposition of the Navier-Stokes equations coupled with the mass fraction equations.
S. A. E. Miller
doaj +1 more source
Acoustic and Large Eddy Simulation studies of azimuthal modes in annular combustion chambers [PDF]
, 2012 The objectives of this paper are the description of azimuthal instability modes found in annular combus- tion chambers using two numerical tools: (1) Large Eddy Simulation (LES) methods and (2) acoustic solv- ers.
Wolf, Pierre +4 more
core +1 more source
Chaotic and linear statistics analysis in thermoacoustic instability detection [PDF]
, 2018 Recent experiments reveal that even simple thermoacoustic systems may exhibit nonlinear behavior, far more elaborate than period-1 limit cycle oscillations.
Giacomazzi, E.
core +3 more sources