Results 11 to 20 of about 22,506 (202)

The diffusive-thermal instability of premixed flames with low unburned-gas temperature under the adiabatic and non-adiabatic conditions

Mechanical Engineering Journal, 2015
We elucidated the diffusive-thermal instability of premixed flames with low unburned-gas temperature under the adiabatic and non-adiabatic conditions. Numerical calculations of two-dimensional unsteady reactive flows were performed, based on the diffusive-thermal model equation. Lewis numbers smaller than unity were adopted, and radiative heat loss was
Thwe Thwe AUNG, Satoshi KADOWAKI
openaire   +4 more sources

Three-dimensional cellular premixed flames generated by hydrodynamic and diffusive-thermal instabilities (Effects of unburned-gas temperature and heat loss)

Transactions of the JSME (in Japanese), 2019
We dealt with three-dimensional cellular premixed flames generated by hydrodynamic and diffusive-thermal instabilities to elucidate the effects of unburned-gas temperature and heat loss. To obtain the dispersion relation, a sinusoidal disturbance with sufficiently small amplitude was superimposed on a planar flame.
Satoshi KADOWAKI, Masato NOGAMI, Thwe Thwe Aung, Toshiyuki KATSUMI, Wataru YAMAZAKI, Hideaki KOBAYASHI   +5 more
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The effects of unburned-gas temperature on the characteristics of cellular premixed flames generated by hydrodynamic and diffusive-thermal instabilities in large space: fractal dimension of cellular-flame fronts

Journal of Thermal Science and Technology, 2017
The effects of unburned-gas temperature on the characteristics of cellular premixed flames generated by hydrodynamic and diffusive-thermal instabilities were numerically investigated. Two-dimensional reactive flow was calculated in large space, based on the compressible Navier-Stokes equations including a one-step irreversible chemical reaction.
Satoshi KADOWAKI, Taisuke WASHIO, Thwe Thwe Aung, Wataru YAMAZAKI, Toshiyuki KATSUMI, Hideaki KOBAYASHI   +5 more
openaire   +4 more sources

The effects of unburned-gas temperature on intrinsic instability of premixed flames at high Lewis numbers under the adiabatic and non-adiabatic conditions

Mechanical Engineering Journal, 2017
We treated numerically premixed flames at high Lewis numbers under the adiabatic and non-adiabatic conditions to elucidate the effects of unburned-gas temperature on intrinsic instability. Numerical calculations of two-dimensional unsteady reactive flow were performed, based on the compressible Navier-Stokes equation including one-step chemical ...
Thwe Thwe Aung, Toshiyuki KATSUMI, Satoshi KADOWAKI   +2 more
openaire   +4 more sources

Impact of Fire and Heat Stress on Soil Microorganisms: A Review of Community Changes, Molecular Responses and Plant-Beneficial Roles. [PDF]

Environ Microbiol Rep
This work reviewed the direct and indirect effects of fires on microbial communities and the resilience strategies microbes use to withstand high temperatures . ABSTRACT Fire, whether occurring on the surface or underground, significantly influences soil microbial dynamics by reshaping community composition, functional diversity and overall soil and ...
Orozco-Mosqueda MDC, Flores-Piña A, Kumar A, Parra-Cota FI, de Los Santos-Villalobos S, Mitra D, Babalola OO, Santoyo G.   +7 more
europepmc   +2 more sources

The Effect of Operating Factors on the Pollutants Emission from a Constant Pressure Burner [PDF]

Engineering and Technology Journal, 2013
This paper presents the effect of varying operating conditions on pollutants emission (carbon monoxide [CO], unburned hydrocarbon [UHC], and Soot) from constant pressure burner.
Abdul Al-Kadhim M. Hasan, Abdul Sattar Jawad M.Hasan, Riyadh Salman Radhi   +2 more
doaj   +1 more source

Thermodynamic Properties of Unburned Reactant Mixtures for Different Kind of Fuels [PDF]

Journal of Eta Maritime Science, 2017
Accurate estimation of adiabatic flame temperature and combustion product species play a key role in estimating performance and emission characteristics of internal combustion engines.
Hasan Kayhan KAYADELEN
doaj   +1 more source

Characterization of Reactivity Enhancement Coal Combustion with Empty Fruit Bunches Using Thermogravimetry Analysis [PDF]

E3S Web of Conferences, 2023
A study on the utilization of biomass in power plants as an alternative fuel was conducted. The benefit of biomass fuel is that it reduces greenhouse gas emissions, namely carbon dioxide, and contributes to reducing the effects of global warming.
Chaeruni Wiwie, Hadiyanto, Cahyadi, Sutardi Tata   +3 more
doaj   +1 more source

Asymptotic Analysis on High-temperature Premixed Flames: Instability of Flame Fronts under the Constant-enthalpy Conditions

Journal of Thermal Science and Technology, 2010
Asymptotic analysis on premixed flames with high-temperature combustible mixtures was performed to elucidate the instability of flame fronts. Planar premixed flames with sufficiently low Mach numbers were treated, and a one-step irreversible chemical ...
Satoshi KADOWAKI
doaj   +1 more source

Reduction in CO Emission from Small Reciprocating Engine Operated with Wood Gasifier by Mixture LHV Changing

Energies, 2023
In order to exchange the wood biomass energy for electric power with small capacity and high efficiency, it is most effective to use a reciprocating engine operated with a wood gasifier.
Hiroshi Enomoto, Ryo Nakagawa
doaj   +1 more source