Results 1 to 10 of about 15,067 (185)

Effect of Superheat Steam on Ejector in Distilled Water Preparation System for Medical Injection [PDF]

open access: yesEntropy, 2022
In this study, a wet steam model was used to investigate the effect of steam superheat on ejector performance and non-equilibrium condensation phenomena. The simulation data for the ejector were validated with experimental data. The simulations show that
Bin Yang   +5 more
doaj   +2 more sources

Nucleation Process in Explosive Boiling Phenomena of Water on Micro-Platinum Wire [PDF]

open access: yesEntropy, 2023
The maximum temperature limit at which liquid boils explosively is referred to as the superheat limit of liquid. Through various experimental studies on the superheating limit of liquids, rapid evaporation of liquids has been observed at the superheating
Yungpil Yoo, Ho-Young Kwak
doaj   +2 more sources

Simulation of the macrosegregation in the gear steel billet continuous casting process

open access: yes工程科学学报, 2021
Macrosegregation forms due to relative motion between liquid and solid phases on the macro scale during solidification. As macrosegregation is formed during a solidification process, it is difficult to remove it in the subsequent rolling and heat ...
Ya-dong WANG   +2 more
doaj   +1 more source

Effects of high pressure and superheat temperature on microstructure evolution of Al-20Si alloy

open access: yesJournal of Materials Research and Technology, 2020
The microstructures of Al-20Si alloy solidified under different pressures (2 GPa and 3 GPa) and different superheat temperatures were investigated. The results demonstrate that the decrease of superheat temperature leads to the changes in morphology of ...
R. Zhang   +5 more
doaj   +1 more source

Diagnosis Method for the Heat Balance State of an Aluminum Reduction Cell Based on Bayesian Network

open access: yesMetals, 2020
The superheat of an electrolyte is an important indicator of the heat balance state of aluminum reduction cells. In industrial practice, it costs too much to accurately measure the superheat in every cell every day.
Jiaming Zhu, Jie Li
doaj   +1 more source

The Formation Mechanism of Porosity for Spray-deposited 7075 Alloy [PDF]

open access: yesMaterials Research, 2015
The distribution model of temperature for the billets was established based on the porosity formation mechanism. By calculating the numerical relationship between the temperature of the deposition layer and the formation ability of the porosity, the ...
Fuyang Cao   +7 more
doaj   +1 more source

Improvements in CO2 Booster Architectures with Different Economizer Arrangements. [PDF]

open access: yes, 2020
CO2 transcritical booster architectures are widely analyzed to be applied in centralized commercial refrigeration plants in consonance with the irrevocable phase-out of HFCs.
Cabello López, Ramón   +5 more
core   +1 more source

Effect of High Pressure and Temperature on the Evolution of Si Phase and Eutectic Spacing in Al-20Si Alloys

open access: yesCrystals, 2021
The microstructure of the Si phase in Al-20Si alloys solidified under high pressure was investigated. The results demonstrate that the morphology of Si phase transformed (bulk→short rod→long needle) with the increase of superheat temperature under high ...
Rong Zhang   +3 more
doaj   +1 more source

Numerical Modelling of Water Flashing at Sub-Atmopsheric Pressure with a Multi-Regime Approach

open access: yesFluids, 2023
The CFD numerical study of the flash boiling phenomenon of a water film was conducted using an Euler–Euler method, and compared to the experiments on the flashing of a water film.
Clément Loiseau   +3 more
doaj   +1 more source

A study of nucleate boiling and critical heat flux with EHD enhancement [PDF]

open access: yes, 2007
The paper describes results from an experimental and theoretical study of the effect of an electric field on nucleate boiling and the critical heat flux (CHF) in pool boiling of R123 at atmospheric pressure on a horizontal wall with a smooth surface. Two
Hristov, Y   +4 more
core   +1 more source

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