Achievement of the highest performance of a CCMHD generator: An isentropic efficiency of 63% and an enthalpy extraction ratio of 31%
T Murakami, Y Okuno… - IEEE transactions on …, 2004 - ieeexplore.ieee.org
In this paper we describe the highest-performance closed-cycle magnetohydrodynamic (CCMHD)
power generator driven by a shock-tube. Despite the use of a small-scale device …
power generator driven by a shock-tube. Despite the use of a small-scale device …
Feasibility study on frozen inert gas plasma MHD generator
H Kobayashi, Y Okuno - IEEE transactions on plasma science, 2000 - ieeexplore.ieee.org
… Yoshihiro Okuno received the BE degree in electrical engineering from the Kyushu Institute
of Technology in 1982 and the ME and DE degrees in energy sciences from the Tokyo …
of Technology in 1982 and the ME and DE degrees in energy sciences from the Tokyo …
Proposal of a highly efficient CCMHD single power generation system
Y Okuno, K Yoshikawa, T Okamura… - IEEJ Transactions on …, 1998 - jstage.jst.go.jp
A closed cycle MHD (CCMHD) single power generation system without any conventional
gas turbine and steam turbine power generation systems is proposed as one possibility of …
gas turbine and steam turbine power generation systems is proposed as one possibility of …
Three-scale finite element analysis of heterogeneous media by asymptotic homogenization and mesh superposition methods
N Takano, Y Okuno - International Journal of Solids and Structures, 2004 - Elsevier
This paper studies a three-scale computational method that simultaneously considers the
microstructure of heterogeneous materials, the macroscopic component, and the fracture …
microstructure of heterogeneous materials, the macroscopic component, and the fracture …
Plasma characteristics and performance of magnetohydrodynamic generator with high-temperature inert gas plasma
M Tanaka, T Murakami, Y Okuno - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
We describe magnetohydrodynamic power generation experiments with seed-free high-temperature
inert gas plasma using a linear-shaped Faraday-type generator driven by a shock-…
inert gas plasma using a linear-shaped Faraday-type generator driven by a shock-…
Power Generation Characteristics of Disk-Shaped Magnetohydrodynamic Generator Driven by Rotating Detonation
…, M Matsumoto, A Kawasaki, Y Okuno - Journal of Propulsion and …, 2025 - arc.aiaa.org
The power generation characteristics of a disk-shaped magnetohydrodynamic generator
driven by rotating detonation with potassium-seeded hydrogen–air mixture are examined via …
driven by rotating detonation with potassium-seeded hydrogen–air mixture are examined via …
Multi-scale finite element analysis of porous materials and components by asymptotic homogenization theory and enhanced mesh superposition method
N Takano, M Zako, Y Okuno - Modelling and Simulation in …, 2003 - iopscience.iop.org
To analyse the macroscopic and microscopic behaviours of heterogeneous materials and
components, a multi-scale computational method is studied. Although asymptotic …
components, a multi-scale computational method is studied. Although asymptotic …
Turbulent duct flows in a liquid metal magnetohydrodynamic power generator
H Kobayashi, H Shionoya, Y Okuno - Journal of Fluid Mechanics, 2012 - cambridge.org
We numerically assess the influence of non-uniform magnetic flux density and connected
load resistance on turbulent duct flows in a liquid metal magnetohydrodynamic (MHD) …
load resistance on turbulent duct flows in a liquid metal magnetohydrodynamic (MHD) …
Observation of radio‐frequency discharges at various driving frequencies
Y Ohtsu, Y Okuno, H Fujita - Journal of applied physics, 1993 - pubs.aip.org
Radio‐frequency discharges at various driving frequencies f in the range of 1.9–28 MHz are
observed, especially from the viewpoint of the sheath structure. The results reveal that for f≥…
observed, especially from the viewpoint of the sheath structure. The results reveal that for f≥…
Performance of a seed-free disk magnetohydrodynamic generator with self-excited joule heating in the nozzle
M Tanaka, Y Okuno - IEEE transactions on plasma science, 2017 - ieeexplore.ieee.org
In a seed-free inert-gas disk-shaped magnetohydrodynamic (MHD) generator, the effect of
the self-excited Joule heating in the nozzle region on the generator performance has been …
the self-excited Joule heating in the nozzle region on the generator performance has been …