Temat: repowering - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Reconditioning in synchronous operation with one parallel induction generator
Autorzy:: Magalhães, A. S.
Moraes, P. H. F.
Silva, A. H. F.
Gomes, P. H. G.
Alves, A. J.
Calixto, W. P.
Tematy:: repowering
induction generator
synchronous generator
harmonics; Pokaż więcej
Data publikacji:: 2016
Powiązania:: https://bibliotekanauki.pl/articles/136216.pdf Link otwiera się w nowym oknie
Źródło:: Transactions on Environment and Electrical Engineering; 2016, 1, 4; 66-72
2450-5730
Pojawia się w:: Transactions on Environment and Electrical Engineering
Opis:: The purpose of this paper is to compare mathematical modeling and practical bench in order to validate the electrical interactions between an induction generator and a synchronous generator. Two generators was connected to a common bus in steady state, subject to non-linear load. The results comparing modeling and bench tests show that the induction generator besides the active power increasing, has a better way for harmonic currents flowing in common bus. It was concluded that the induction generator repowering and attenuates current harmonic components present at the connection point, improving the network voltage profile.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 2.

Tytuł:: Repowering strategies: Analysis of gas turbine integration with steam cycle for enhanced power plant performance
Autorzy:: Badyda, Krzysztof
Harutyunyan, Artur
Wołowicz, Marcin
Tematy:: modeling
thermodynamic properties
repowering
gas turbine
gas-steam system; Pokaż więcej
Data publikacji:: 2024
Powiązania:: https://bibliotekanauki.pl/articles/59111954.pdf Link otwiera się w nowym oknie
Źródło:: Archives of Thermodynamics; 2024, 45, 2; 99-106
1231-0956
2083-6023
Pojawia się w:: Archives of Thermodynamics
Opis:: In this paper, various repowering methods commonly employed in practice today are discussed. A particular emphasis is put on the hot wind-box repowering method, which is examined in greater detail. This method stands out for its simpler solution and lower investment costs compared to other repowering methods. Most research and analyses on repowering, taking into account the ecological problems and the possibilities of repowering existing old steam cycle power plants, have focused on the effect of repowering on thermodynamic parameters and emission reduction․ However, there are still many important questions that remain open and unexplored when it comes to analyze the selection of the right technology of the repowering and the right gas turbine for such a combined cycle power plant. For that purpose, based on the oxygen fraction in the gas turbine exhaust gases, nine different gas turbine models were tested for a 200 MW steam cycle power plant model. Calculations were carried out using the GateCycle modelling program. As a result of investigations, a GE Energy Oil & Gas MS9001E SC (GTW 2009 ‒ with 123 MW power) gas turbine was selected as the best one for such a combination, in which case the increase of total net power output by 97.69% and the improvement of efficiency by 6.67% were registered, compared to the results before repowering, while carbon dioxide emissions were decreased by 0.29% per megawatt electrical power generated. The conducted research underscores the importance of selecting the right gas turbine for such a gas-steam system.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 3.

Tytuł:: The effect of parallel hot windbox repowering on 387 MW fossil fuel power plant
Autorzy:: Harutyunyan, A.
Badyda, K.
Wołowicz, M.
Tematy:: combined cycle power plant
fossil boiler
hot windbox repowering
CO2 emissions; Pokaż więcej
Data publikacji:: 2016
Powiązania:: https://bibliotekanauki.pl/articles/175190.pdf Link otwiera się w nowym oknie
Źródło:: Transactions of the Institute of Fluid-Flow Machinery; 2016, 131; 79-95
0079-3205
Pojawia się w:: Transactions of the Institute of Fluid-Flow Machinery
Opis:: The paper presents the concept of repowering in existing power plant. Among technologies for existing steam power plants, the hot windbox repowering is the fastest way to respond to the energy demand, improve efficiency and reduce the pollutants emissions. Thermodynamic analysis of power plant model with fossil boiler before and after hot windbox repowering, has been investigated using commercial software. The purpose of this work is to understand and analyze the effect of hot windbox repowering on 387 MW fossil fuel power plant as well as the effect of additional heat exchangers, which have been installed parallel with regeneration system to use the heat of boiler exhaust gases. In this way, after repowering the summary power of power plant in base load is 615 MW, which has been reached adding gas turbine (176.9 MW). To analyze the model, calculations were performed in 3 stages: 1) calculation and comparison of the thermodynamic parameters as well as carbon dioxide emissions of power plant model before and after repowering, 2) analysis of the optimal value of feed water mass flow through heat exchangers installed after economizer, 3) calculation of thermodynamic parameters in values 100%, 90%, 80% and 75% of fossil boiler heat loads.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 4.

Tytuł:: Repowering a coal-fired power plant according to the coal-to-nuclear pathway - analysis of nuclear unit development from the perspective of cooling water availability
Autorzy:: Ochmann, Jakub
Łukowicz, Henryk
Lepszy, Sebastian
Bartela, Łukasz
Tematy:: coal-to-nuclear
nuclear power plant performance
repowering
cooling water
efficiency output
power output; Pokaż więcej
Data publikacji:: 2024
Powiązania:: https://bibliotekanauki.pl/articles/59111955.pdf Link otwiera się w nowym oknie
Źródło:: Archives of Thermodynamics; 2024, 45, 2; 107-115
1231-0956
2083-6023
Pojawia się w:: Archives of Thermodynamics
Opis:: Changes in energy fuel markets, the rise of renewables and the aging of existing coal-fired units are leading to increased popularization of research on potential pathways for restructuring power systems. One proposed concept is the Coal-toNuclear path, which involves the partial use of existing coal-fired power plant infrastructure in favor of the construction of nuclear units, which can reduce investment costs. An additional benefit is the ability to manage the workforce competencies identified within the coal-fired power unit, and which are also required for the effective operation of the nuclear unit. The article considers the possibility of repowering the Kozienice power plant in Poland from the perspective of the availability of water used to cool the power units. Three different nuclear reactor technologies that are potentially being considered for the construction of the first nuclear units in Poland were analyzed. The study showed that the lowest water flows in the Vistula river recorded in 2022, equal to 146 m3 /s, make it impossible to simultaneously cool the nuclear units and ensure sufficiently low water temperatures from an environmental perspective. Nuclear units were shown to require about 1.55−1.67 times more water for cooling than typical coal-fired units.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Informacja

Wyszukujesz frazę "repowering" wg kryterium: Temat