Results 21 to 30 of about 6,802 (281)

Numerical Modeling of Wet Steam Flow in Steam Turbine Channel [PDF]

open access: yes, 2012
Dans la pratique des centrales électriques, le travail est extrait de la vapeur en expansion en trois étapes, à savoir les turbines à haute pression(HP), à pression intermédiaire (IP) et à basse pression(LP). Au cours du processus de détente dans la turbine BP, la vapeur se refroidit et, à certains stades, elle nucléate pour devenir un mélange ...
Hasril Hasini   +2 more
openaire   +1 more source

The analysis of influence of uncertainty factors on mathematical modeling of process of reverse expansion of ammonia in low-speed reciprocating compressor stage. Part 1 [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2022
The paper presents an analysis of the influence on the mathematical modeling of the process of reverse expansion of ammonia in the area of wet steam, implemented in the working chamber of the reciprocating compressor stage, of such uncertainty factors ...
D. Kh. Sadvakasov   +2 more
doaj   +1 more source

Numerical investigation of roughness effect on wet steam ejector performance in the refrigeration cycle [PDF]

open access: yes, 2022
Machining operation and presence of water droplets cause increase the surface roughness of wet steam ejector walls and change its performance in the refrigeration cycle.
Lakzian E., Rad M.P., Grönman A.
core   +2 more sources

Analysis of the Influence of Steam Electrification on the Working Processes of a Wet Steam Turbine

open access: yesJournal of Mechanical Engineering, 2022
The effect of steam electrification on the operation of a wet steam turbine, as well as the main processes sensitive to the electrification of the working fluid are considered in the paper.
Andrii V. Nechaiev   +2 more
doaj   +1 more source

A study of the electrostatic charge of the coarse water droplets [PDF]

open access: yesMATEC Web of Conferences, 2021
The aim of this paper is introduce the results of a measurement of the electrostatic charge of water droplets during wet steam expansion. The analysis of the charge origin was done.
Bartoš Ondřej, Peter Václav
doaj   +1 more source

Development of a model for the wet steam separation in the steam space of PGV-1000M steam generator

open access: yesVestnik IGEU, 2020
The issue of reducing steam humidity at the output of steam generator is relevant. The value of humidity directly affects the safety and efficiency of power plants. The optimization of steam generator design will enable to enhance its separation properties and reduce steam humidity.
V.A. Gorbunov   +2 more
openaire   +1 more source

Wet steam flow in 1100 MW turbine

open access: yes, 2021
The paper deals with the wet steam flow in a steam turbine operating in a nuclear power plant. Using a pneumatic and an optical probe, the static pressure, steam velocity, steam wetness and the fine water droplets diameter spectra were measured before ...
Jun, Gukchol   +2 more
core   +1 more source

Validation of the CFD Tools against In-House Experiments for Predicting Condensing Steam Flows in Nozzles

open access: yesEnergies, 2023
The issues addressed in this work concern the condensing steam flows as a flow of a two-phase medium, i.e., consisting of a gaseous phase and a dispersed phase in the form of liquid droplets.
Sima Shabani   +5 more
doaj   +1 more source

Numerical Analysis of the Condensing Steam Flow by Means of ANSYS Fluent and in-House Academic Codes With Respect to the Capacity for Thermodynamic Assessment

open access: yesFrontiers in Energy Research, 2022
In this paper numerical analysis of the condensing steam flow in a converging-diverging nozzle is investigated. The ANSYS Fluent results are compared with the results of the in-house academic Computational fluid dynamics code with respect to the capacity
Sima Shabani   +6 more
doaj   +1 more source

Mathematical modeling and computation of high-pressure steam condensation in a transonic flow

open access: yesJournal of Fluid Science and Technology, 2017
Wet-steam flows under high-pressure conditions are numerically investigated using a newly derived condensation model that assumes a real gas and uses a real gas Equation of State (EOS).
Takashi FURUSAWA, Satoru YAMAMOTO
doaj   +1 more source

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