Zobrazeno 1 - 10
of 43
pro vyhledávání: '"J.M. Ekmann"'
Publikováno v:
International Journal for Numerical Methods in Fluids. 20:507-522
A numerical model of radiative ignition of pyrolysing solid fuels is developed. The model is one-dimensional and transient. The following mechanisms are simultaneously accounted for. (i) the surface heat and mass transport, (ii) the surface oxidation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c43a60ba7928494c97ad230ff8be78f
https://doi.org/10.1002/fld.1650200607
https://doi.org/10.1002/fld.1650200607
Publikováno v:
Combustion and Flame. 94:349-362
A modeling analysis of laser-induced ignition of coals is presented. The model is one dimensional, transient, and incorporates the following: the surface ignition reaction, the in-depth pyrolysis, the gas-phase absorption of the laser radiation and b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::922590163ab7e62bcb2c3a45e470d769
https://doi.org/10.1016/0010-2180(93)90119-n
https://doi.org/10.1016/0010-2180(93)90119-n
Publikováno v:
Combustion and Flame. 93:19-30
Some experiments were conducted to study the interaction of the Nd-Yag laser radiation with four different coals. All coals were ground and screened to 400 mesh and then pressed into cylindrical pellets of 3 mm diameter and 2 mm length. The coal pell
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a92172a3bd650b823c899bfa5eb4c07f
https://doi.org/10.1016/0010-2180(93)90081-d
https://doi.org/10.1016/0010-2180(93)90081-d
Publikováno v:
Powder Technology. 73:211-218
Modern light scattering instrumentation cannot be applied to many concentrated slurries because they are opaque. In this study Laser Doppler Velocimetry is used to measure liquid solid axial velocity profiles for refractive index matched slurries wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4d946c0d913bbe8647878708ae2420c
https://doi.org/10.1016/0032-5910(92)85028-t
https://doi.org/10.1016/0032-5910(92)85028-t
The present work reports an experimental study on the behavior of a jet flame surrounded by a shroud of combustion air. Measurements focussed on the flame length and the emissions of NO{sub x}, total unburned hydrocarbons, CO{sub 2}, and O{sub 2}. Fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::608ed6757fae074e99f0b3a2f06a7747
https://doi.org/10.2172/285495
https://doi.org/10.2172/285495
In this work, the theory of interacting continua is used to formulate the governing equations of motion for each component and the mixture (a granular material and Newtonian fluid) as a whole. The fluid is assumed to be an incompressible viscous flui
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78ae41df0ad695872a2f800609e5f06c
https://doi.org/10.2172/6472102
https://doi.org/10.2172/6472102
The flows of a mixture of solid particles and a fluid have relevance to several important technological applications. There are primarily two approaches that have been used for modeling such solid-fluid systems. In the first approach, the model is ob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1cd5e0aca969bd08829ffebf096d71b
https://doi.org/10.2172/7230272
https://doi.org/10.2172/7230272
Publikováno v:
AIChE Journal. 38:471-472
In the equations governing the flow of fluidized systems, one often comes across a modulus G(e), referred to as the modulus of elasticity. We address the issue that values used for G(e) are orders of magnitude apart and point out that such a modulus,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b365320455307de9d06d05a8edf98af3
https://doi.org/10.1002/aic.690380317
https://doi.org/10.1002/aic.690380317
Autor:
Jost O.L. Wendt, J.M. Ekmann
Publikováno v:
Combustion and Flame. 25:355-360
The effect of some fuel sulfur compounds on NO x emissions arising from thermal fixation was investigated. Laboratory experiments, using a methane-air flat flame doped with either SO 2 or H 2 S, showed that fuel sulfur can inhibit the formation of ni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9ed8e8f964eea614ba736a50d36526a
https://doi.org/10.1016/0010-2180(75)90107-8
https://doi.org/10.1016/0010-2180(75)90107-8
Autor:
A.C. Ekmann, J.M. Ekmann
This document summarizes the results of investigations into the rheological properties of alternate fuel mixtures, such as coal-oil mixtures, coal-water mixtures, and coal-alcohol mixtures. Primary emphasis in this paper is placed on the procedures a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3d57ac72fc69ac2da206017ec0df418
https://doi.org/10.2172/7089855
https://doi.org/10.2172/7089855