Zobrazeno 1 - 10
of 166
pro vyhledávání: '"Bo G Leckner"'
Publikováno v:
Powder Technology. 390:482-495
A hydrodynamic model of a dual fluidized bed gasifier (DFBG) is developed and its predictions are compared with measurements of solids flux and pressure profiles from a cold flow model (CFM). Then, the performance of a DFBG gasifier is theoretically
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b84eb3b5bddd4d1ad5ef1e5be1e8f6d
https://doi.org/10.1016/j.powtec.2021.05.032
https://doi.org/10.1016/j.powtec.2021.05.032
Publikováno v:
Combustion and Flame. 218:42-56
Oxy-fuel fluidized bed (FB) combustion is considered one of the promising ways to control CO2 emission from coal-fired power plants. The effect of H2O on the char conversion during wet flue-gas recycle, in which the H2O concentration could be around
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::084a97a6afcbef2d2339c0450bb63385
https://doi.org/10.1016/j.combustflame.2020.03.025
https://doi.org/10.1016/j.combustflame.2020.03.025
Autor:
Fredrik Lind, Bo G Leckner
Publikováno v:
Waste management (New York, N.Y.). 109
Grate firing is the most common technology used for combustion of municipal solid waste. The more recently developed fluidized bed (FB) combustion is rarely employed for this purpose. The present work compares the technical properties of the two devi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::301ef94efb5167a1bfd9eca428390a33
https://pubmed.ncbi.nlm.nih.gov/32388407
https://pubmed.ncbi.nlm.nih.gov/32388407
Autor:
Bo G Leckner
Publikováno v:
Chemical Engineering Science. 247:117089
The fluid dynamics in the furnaces of large-scale circulating fluidized bed (CFB) boilers are surprisingly little known in contrast to the many laboratory studies made on conditions related to chemical reactors. Two areas are surveyed in the present
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::920004a87e346d555915a1d79806d6ba
https://doi.org/10.1016/j.ces.2021.117089
https://doi.org/10.1016/j.ces.2021.117089
Publikováno v:
Combustion and Flame. 192:190-204
There is experimental evidence of oscillations of the char particle temperature during combustion in a fluidized bed (FB), resulting from the movement of the char throughout the bed. However, in most theoretical FB combustion studies the char particl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2563a25f680878dc46cad18bdffdbd43
https://doi.org/10.1016/j.combustflame.2018.02.005
https://doi.org/10.1016/j.combustflame.2018.02.005
Publikováno v:
Applied Energy. 215:116-130
In spite of the extensive theoretical and experimental work carried out on coal/char oxy-combustion in a fluidized bed (FB), the effect of changing the atmosphere from O2/N2 to O2/CO2 for a high O2 concentrations is not entirely understood. In this w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4855f3714431010a619bc5fad2d61ed
https://doi.org/10.1016/j.apenergy.2018.01.038
https://doi.org/10.1016/j.apenergy.2018.01.038
Autor:
Bo G Leckner, Guilin Piao, Alberto Gómez Barea, Jubing Zhang, Xinye Wang, Wenkang Wang, Changsheng Bu
Publikováno v:
Chemical Engineering Journal. 336:74-81
Most of the time char particles in commercial FB units encounter considerably lower oxygen concentrations than that in the entrance, say between 2% and 10%, and the effects of the oxy-fuel atmosphere on the conversion history of char particles need t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ee4c2d92f763530824fdde189131a1d
https://doi.org/10.1016/j.cej.2017.11.027
https://doi.org/10.1016/j.cej.2017.11.027
Autor:
Bo G Leckner, Alberto Gómez-Barea
Publikováno v:
Applications in Energy and Combustion Science, Vol 8, Iss, Pp 100042-(2021)
This work investigates a circulating fluidized bed boiler, originally designed for air-firing, retrofitted to oxy-firing with the purpose of removing the CO2 emission from coal combustion. Previous studies have shown that the heat balance on the gas-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf942e2b0c1fe20eda3c8a93fbf7911d
https://doi.org/10.1016/j.jaecs.2021.100042
https://doi.org/10.1016/j.jaecs.2021.100042
Publikováno v:
Fuel. 207:615-624
The char temperature during combustion in a fluidized bed (FB) is often measured by thermocouples due to simplicity, and because it is assumed that the thermocouple effect on the movement of the char is negligible. It is also accepted that the combus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08036f1e841d447353dd0ca47962fd20
https://doi.org/10.1016/j.fuel.2017.06.085
https://doi.org/10.1016/j.fuel.2017.06.085
Autor:
Bo G Leckner
Publikováno v:
Powder Technology. 308:362-367
The description of the fluidization behavior of Group B particles is ambiguous at high velocities in wide vessels like those in commercial solid-fuel converters, such as boiler furnaces and gasifiers. Bubbling, turbulent, and fast-fluidization regime
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::261add7df000bd295624d8bb56a5ef08
https://doi.org/10.1016/j.powtec.2016.11.070
https://doi.org/10.1016/j.powtec.2016.11.070