Results 11 to 20 of about 113,698 (289)

Research on prediction and analysis of supercritical water heat transfer coefficient based on support vector machine

Nuclear Engineering and Technology, 2023
In order to better perform thermal hydraulic calculation and analysis of supercritical water reactor, based on the experimental data of supercritical water, the model training and predictive analysis of the heat transfer coefficient of supercritical ...
Ma Dongliang, Li Yi, Zhou Tao, Huang Yanping   +3 more
doaj   +1 more source

Applications of subcritical and supercritical water conditions for extraction, hydrolysis, gasification, and carbonization of biomass: a critical review [PDF]

Biofuel Research Journal, 2017
This review summarizes the recent essential aspects of subcritical and supercritical water technology applied tothe extraction, hydrolysis, carbonization, and gasification processes.
D. Lachos-Perez, A.B. Brown, A. Mudhoo, J. Martinez, M.T. Timko, M.A. Rostagno, T. Forster-Carneiro   +6 more
doaj   +1 more source

Thermal–Hydraulic Calculation and Analysis on Water Wall System of a 700 MWe Ultra-Supercritical CFB Boiler

Energies, 2023
Ultra-supercritical circulating fluidized bed (CFB) boiler combustion technology has the advantages of environmental protection and good commercialization.
Haowen Wu, Tuo Zhou, Xiannan Hu, Yongjun Luo, Man Zhang, Hairui Yang   +5 more
doaj   +1 more source

Proton dynamics in supercritical water [PDF]

The Journal of Chemical Physics, 2001
An inelastic neutron scattering experiment has been performed on supercritical water at high momentum transfer, up to 90 Å−1, in order to study single proton dynamics. The value of the proton mean kinetic energy has been extracted in the framework of the impulse approximation.
ANDREANI, CARLA, Colognesi, D, Degiorgi, E, Ricci, MA   +3 more
openaire   +4 more sources

A closer look at supercritical water [PDF]

Proceedings of the National Academy of Sciences, 2013
Water, the fluid of life at ambient pressure (P) and temperature (T), is mostly present under supercritical conditions in the Earth’s crust and mantle (1): that is, above the vapor-liquid critical point (647 K and 221 MPa). As a free fluid or dissolved in silicate minerals, supercritical water greatly influences the structure and dynamics of our planet.
Galli, Giulia A., Pan, Ding
openaire   +3 more sources

Research on heat transfer coefficient of supercritical water based on factorial and correspondence analysis

Nuclear Engineering and Technology, 2020
The study of heat transfer coefficient of supercritical water plays an important role in improving the heat transfer efficiency of the reactor. Taking the supercritical natural circulation experimental bench as the research object, the effects of power ...
Feng Xiang, Zhou Tao, Zhang Jialei, Zhang Boya, Ma Dongliang   +4 more
doaj   +1 more source

Efficient Surrogate-Assisted Parameter Analysis for Coal-Supercritical Water Fluidized Bed Reactor with Adaptive Sampling

Machines, 2023
Supercritical water fluidized beds (SCWFBs) are promising and efficient reactors for the gasification of coal in supercritical water. The understanding and investigation of multi-phase flows as well as the gasification process usually rely on time ...
Pu Zhao, Haitao Liu, Xinyu Xie, Shiqi Wang, Jiali Liu, Xiaofang Wang, Rong Xie, Siyuan Zuo   +7 more
doaj   +1 more source

Acceleration of oxidation process of iron in supercritical water containing dissolved oxygen by the formation of H2O2

AIP Advances, 2018
To improve fuel use and energy-conversion efficiency and reduce the emission of pollutants, oxygenation is now deemed an effective chemical treatment of water in supercritical and ultra-supercritical power plants.
Caili Zhang, Jianguo Li, Zhuxia Zhang, Nan Dong, Jian Wang, Ying Liu, Lixia Ling, Peide Han   +7 more
doaj   +1 more source

Experimental studies of the influence of temperature on the process of polystyrene processing in a supercritical water environment [PDF]

EPJ Web of Conferences
This paper discusses a hydrothermal method for processing polystyrene in a supercritical water environment. This depolymerization process is carried out in a closed reactor where water serves as a solvent, catalyst and reactant.
Gilmutdinov Ilnur
doaj   +1 more source

Supercritical water synthesis of nano-particle catalyst on TiO2 and its application in supercritical water gasification of biomass

Journal of Experimental Nanoscience, 2017
Hydrogen production by catalytic gasification in supercritical water (SCW) is a promising way to utilise biomass resource. Supercritical water not only provides homogeneous and rapid reaction environment for the biomass gasification but also causes ...
Hui Jin, Xiao Zhao, Zhenqun Wu, Changqing Cao, Liejin Guo   +4 more
doaj   +1 more source