Results 31 to 40 of about 84,188 (293)

Development of a program code for calculating the flow paths of steam turbines with long blades [PDF]

open access: yesE3S Web of Conferences
Paper is devoted to the development of software code for calculating low-pressure cylinders of steam turbines. The program code divides the steam turbine compartment with a long blades into separate stages, and also calculates these stages by sections in
Popov Vitaliy, Kovalenko Daniil
doaj   +1 more source

Modeling and analysis approaches for small‐signal stability assessment of power‐electronic‐dominated systems

open access: yesWIREs Energy and Environment, Volume 12, Issue 1, January/February 2023., 2023
Application of small‐signal analysis tools for power‐electronic‐dominated systems. Abstract The stability, operation, and control of power networks have been challenged due to the increased penetration of power electronic converters. New instability phenomena have appeared due to the interaction of the power converter controllers with other power ...
Marc Cheah‐Mane   +5 more
wiley   +1 more source

Development of excitation test method for non-synchronous vibration of rotating turbine blade (Measurement of damping of non-synchronous vibration mode)

open access: yesNihon Kikai Gakkai ronbunshu, 2016
In order to analyze the blade vibration caused by flutter, it is necessary to understand both the aerodynamic damping and structural damping of the high vibration stress. Flutter Vibration mode occurring in the rated speed is non-synchronous mode.
Ryou AKIYAMA   +3 more
doaj   +1 more source

EFFICIENCY ANALYSIS OF STEAM REHEATING IN HEAT RECOVERY STEAM GENERATOR OF HEAT-EXTRACTION ENERGY UNIT GT-TOPPING

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2020
Relevance. Redeveloping of the existing heat-power equipments is one of the priority areas of power generation development. Adoption of gas turbine unit to the thermal scheme of steam-power energy unit with the preservation of power plant infrastructure ...
Alexander A. Minor, Olga Yu. Romashova
doaj   +1 more source

Estimating the impacts of natural gas power generation growth on solar electricity development: PJM's evolving resource mix and ramping capability

open access: yesWIREs Energy and Environment, Volume 12, Issue 1, January/February 2023., 2023
Trends in natural gas‐fired and distributed solar photovoltaic (PV) systems in the Pennsylvania–New Jersey–Maryland (PJM) region. Abstract Expansion of distributed solar photovoltaic (PV) and natural gas‐fired generation capacity in the United States has put a renewed spotlight on methods and tools for power system planning and grid modernization. This
Joseph Nyangon, John Byrne
wiley   +1 more source

Simple prediction method of unstable fluid force in turbine blade row of steam turbine

open access: yesNihon Kikai Gakkai ronbunshu, 2016
Unstable fluid force may be induced by rotor blade eccentricity in turbo machinery such as steam turbines. To develop a prediction method for unstable fluid force in turbine blade rows, we calculated the fluid force by using computational fluid dynamics (
Kiyoshi YABATA   +2 more
doaj   +1 more source

A dynamic equivalent aggregation method of wind turbine systems with a full‐scale power converter for electromagnetic transient simulations

open access: yesIET Renewable Power Generation, Volume 17, Issue 1, Page 36-51, 6 January 2023., 2023
A dynamic equivalent aggregation method is developed for wind turbine systems with full‐scale power converters to improve the electromagnetic transient simulation speed. A precision equivalence for the collecting network considering is introduced. A Louvain K‐means clustering algorithm is adopted to determine the optimal clustering result.
Yicheng Xue, Zheren Zhang, Zheng Xu
wiley   +1 more source

The thermo-stressed state of steam turbine rotors during plant start-up [PDF]

open access: yes, 2016
This article suggests the use of the value of the thermo-stressed state in the turbine steam input stage as one of the key parameters characterizing the start-up reliability of the turbine plant cycle.
Brodov, Yu., Goloshumova, V.
core   +2 more sources

Techno‐economic and sensitivity analysis of a hybrid concentrated photovoltaic/thermal system and an organic Rankine cycle to supply energy to sports stadiums

open access: yesIET Renewable Power Generation, EarlyView., 2023
Considering the importance of the subject, here, a PV hybrid system with a concentrator and an ORC is evaluated from a technical and economic point of view. First, system modelling methods and relationships governing system components are examined. In this regard, the first and second laws of thermodynamics are very important. Constants and assumptions
Jing Zhang   +4 more
wiley   +1 more source

Parametric analysis of the efficiency of the combined gas-steam turbine unit of a hybrid cycle for the FPSO vessel

open access: yesPolish Maritime Research, 2022
A thermal diagram of the combined gas-steam turbine unit of a hybrid cycle, which is an energy complex consisting of a base gas turbine engine with a steam turbine heat recovery circuit and a steam-injected gas turbine operating with overexpansion, is ...
Serbin Serhiy   +3 more
doaj   +1 more source

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