Zobrazeno 1 - 10
of 157
pro vyhledávání: '"CHANGKOOK RYU"'
Publikováno v:
Energies, Vol 17, Iss 19, p 4799 (2024)
A flue gas condenser (FGC) system recovers heat from exhaust flue gases in energy production and chemical plants, reducing air pollution due to dust, SOx, and HCl. An FGC system is divided into indirect contact condenser (ICC) and direct contact cond
Externí odkaz:
https://doaj.org/article/c7f41fa3c06e447ca8a846b973913315
Publikováno v:
Energies, Vol 16, Iss 22, p 7475 (2023)
In the chemical industry, hydrogen (H2) production through steam-methane reforming is a well-established process. With the growing demand for H-fueled vehicles and charging stations, there is a need for compact reformers with efficient heat transfer
Externí odkaz:
https://doaj.org/article/d0b08655c4aa46dd902581ede33cb09f
Autor:
Ali El-Naggar, Scott X. Chang, Yanjiang Cai, Young Han Lee, Jianxu Wang, Shan-Li Wang, Changkook Ryu, Jörg Rinklebe, Yong Sik Ok
Publikováno v:
Environment International, Vol 156, Iss , Pp 106638- (2021)
The effect and mechanistic evidence of biochar on the (im)mobilization of potentially toxic elements (PTEs) in multi-contaminated soils, with respect to the role of surface-functional groups and organic/inorganic compounds of biochar, are poorly unde
Externí odkaz:
https://doaj.org/article/6de556a8480c43a296acf357c6d6a815
Publikováno v:
Energies, Vol 14, Iss 24, p 8352 (2021)
Tangential-firing boilers develop large swirling fireballs by using pulverized coal and air from the corners of the burner zone. During operation, however, the boiler may experience an uneven air supply between corners; this deforms the fireball, rai
Externí odkaz:
https://doaj.org/article/dabb82d412c9448c893ae1e3274057a9
Publikováno v:
Energies, Vol 14, Iss 23, p 8182 (2021)
Although steam methane reforming (CH4 + 2H2O → 4H2 + CO2) is the most commercialized process for producing hydrogen from methane, more than 10 kg of carbon dioxide is emitted to produce 1 kg of hydrogen. Methane pyrolysis (CH4 → 2H2 + C) has attr
Externí odkaz:
https://doaj.org/article/204985f781984b57ae40762eb6a55a94
Publikováno v:
Energies, Vol 14, Iss 20, p 6552 (2021)
In this study the NOx reduction capability of reburning three biomasses (i.e., wood pellet, torrefied biomass, and empty fruit bunch) via 12 cases (i.e., four reburning ratios for every biomass) is investigated in a 1 MWth-scale pilot-scale furnace.
Externí odkaz:
https://doaj.org/article/3de40241dd104e12950d06fdf92462b1
Autor:
Jiseok Lee, Seunghan Yu, Jinje Park, Hyunbin Jo, Jongkeun Park, Changkook Ryu, Yeong-gap Jeong
Publikováno v:
Energies, Vol 13, Iss 19, p 5077 (2020)
For renewable electricity production, biomass can fully displace coal in an existing power plant with some equipment modifications. Recently, a 125 MWe power plant burning mainly anthracite in Korea was retrofitted for dedicated wood pellet combustio
Externí odkaz:
https://doaj.org/article/b72eea0e45fc4414a664463bdd8a50d3
Publikováno v:
Energies, Vol 8, Iss 5, Pp 3370-3385 (2015)
The behaviors of the slag layers formed by the deposition of molten ash onto the wall are important for the operation of entrained coal gasifiers. In this study, the effects of design/operation parameters and slag properties on the slag behaviors wer
Externí odkaz:
https://doaj.org/article/22cc5eff99454471a38f77b643ab2a36
Publikováno v:
Energies, Vol 12, Iss 17, p 3281 (2019)
The use of separated overfire air (SOFA) has become a standard technique of air staging for NOx reduction in the coal-fired boiler and can also be applied to existing boilers by retrofit. This study was to optimize the air distribution for the propos
Externí odkaz:
https://doaj.org/article/a6ad76c7a814401db2bcf6c0711e2af9
Publikováno v:
Nuclear Engineering and Technology, Vol 45, Iss 1, Pp 21-28 (2013)
The flow and heat transfer characteristics of the ex-vessel core melt (corium) were investigated using a commercial CFD code along with the experimental data on the spreading of corium available in the literature (VULCANO VE-U7 test). In the numerica
Externí odkaz:
https://doaj.org/article/51db66d27789495a93d751565d47a4c1