Power Plant Performance Based on Power-Efficiency Curve of Hydroelectric Power Plant

—Hydropower energy is widely used throughout the world. It is the only renewable energy that is presently commercially practical on the large scale. In order to maintain the hydropower plant in good condition, the performance of the power plant needs to be monitored constantly. Efficiency curve helps in studying the performance of the turbine under various conditions and this is the best way to look for the performance of the power plant. Therefore, this paper presents the relationship between load (MW) and efficiency of each turbine and generator unit. This project uses Microsoft Excel 2010 software to produce a graph from the exact data produced from the database. This paper’s objective is to compare the theoretical performance curve and the calculated performance curve and also to discuss the hydroelectric power plant performance.

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Dynamics of Lady’s slipper orchid (Cypripedium calceolus L.) population at Lake Kwiecko (West Pomerania)

Biodiversity Research and Conservation ◽

10.2478/biorc-2014-0026 ◽

2014 ◽

Vol 36 (1) ◽

pp. 53-60 ◽

Cited By ~ 2

Author(s):

Maciej Korczyński ◽

Ewa Krasicka-Korczyńska

Keyword(s):

Power Plant ◽

Endangered Species ◽

Rare Species ◽

Negative Impact ◽

Good Condition ◽

Hydroelectric Power Plant ◽

Field Observations ◽

Hydroelectric Power ◽

Cypripedium Calceolus ◽

Slipper Orchid

Abstract Cypripedium calceolus is considered an endangered species in the territory of Poland. Population of this rare species, situated at Lake Kwiecko (Western Pomerania), was regularly monitored in the years 1986-2013. The studied population has been under the permanent influence of the nearby hydroelectric power plant for almost 45 years. The field observations showed that the power plant had no negative impact on the condition of Cypripedium calceolus population. An indication of its good condition was, among others, an increase in the size - from 150 to 350 specimens within the study period.

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Usaquén small hydropower plant - successful case

Visión electrónica ◽

10.14483/22484728.18393 ◽

2018 ◽

Vol 1 (2) ◽

pp. 293-303

Author(s):

Diego Fernando Rodríguez-Galán ◽

Andrés Escobar-Díaz

Keyword(s):

Power Plant ◽

Hydroelectric Power Plant ◽

Environmental Problems ◽

Hydropower Plant ◽

Hydroelectric Power ◽

Small Hydropower ◽

Engineering Project ◽

Business Context ◽

Successful Case ◽

The City

In this study a presentation is made of the Small Hydroelectric Power Plant (PCH) located in Usaquén (Bogota), the work is based on an engineering project carried out by the Aqueduct and Sewer Company of Bogotá (EAAB). It is addressed first of all the environmental problems considered in this project and the business context that propitiates it, taking into account the technical background of the operation of the aqueduct system of the city. In second instance, the technical generalities and the scopes that were estimated in the formulation of the project are exposed to finally contrast them with the results obtained after five years of operation of the project.

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Evaluasi Keandalan PLTA Bakaru

Jurnal Sinergi Jurusan Teknik Mesin ◽

10.31963/sinergi.v19i1.2762 ◽

2021 ◽

Vol 19 (1) ◽

pp. 80

Author(s):

Akbar Tanjung ◽

Arman Jaya ◽

Suryanto Suryanto ◽

Apollo Apollo

Keyword(s):

Power Plant ◽

Hydroelectric Power Plant ◽

Capacity Factor ◽

Energy Utilization ◽

Hydropower Plant ◽

Hydroelectric Power ◽

Hydro Power ◽

Gross Energy ◽

Conducting Research ◽

The City

One form of water energy utilization is done by building a Hydroelectric Power Plant (PLTA) in Indonesia, the Bakaru PLTA is one of the projects within PT. PLN (Persero). This project is a Hydro Power Plant Master project with a SULSELRABAR transmission located 246 km from the city of Makassar. The operation of the Bakaru hydropower system is certainly expected to work optimally, reliably and efficiently. Therefore, evaluation or data on the performance of the generator itself is needed. This study was conducted to determine the condition of the Bakaru hydropower plant based on the equivalent availability factor (EAF) and Net Capacity Factor (NCF) and Cost of Production (BPP). The data used is operating data on the Bakaru hydropower plant for 1 year. The data was obtained by using the documentation technique, while the data analysis was carried out using the Microsoft Excel program. After conducting research, it can be concluded that the condition of the Bakaru hydropower plant in 2017 is considered normal, seen from the EAF value reaching 94.15% and the average EFOR value of 2.4% with the number of Service Hours (SH) of 16,912.93 hours from 2 units. with the percentage of Service Hours to Period Hours reaching 96.53%. Meanwhile, the Net Capacity Factor of the Bakaru hydropower plant in 2017 reached 85.83%, with a total gross energy production of 945,372.50 MWh. This value exceeds the target that has been set.

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Studi Optimasi Operasional Waduk Koto Panjang Untuk Pembangkit Listrik Tenaga Air

JURNAL SAINTIS ◽

10.25299/saintis.2021.vol21(01).6249 ◽

2021 ◽

Vol 21 (01) ◽

pp. 31-44

Author(s):

Diana Hanafi ◽

Harmiyati

Keyword(s):

Power Plant ◽

Water Balance ◽

Electric Power ◽

Rainy Season ◽

Electrical Power ◽

Hydroelectric Power Plant ◽

Empirical Method ◽

Dry Season ◽

Hydropower Plant ◽

Hydroelectric Power

[ID] Pada musim kemarau PLTA Koto Panjang pernah mengoperasikan satu unit turbin dan generator sehingga daya yang dihasilkan tidak maksimal. Pada musim yang sama PLTA ini juga pernah mengoperasikan tiga unit turbin dan generator namun hanya menghasilkan daya listrik 35 MW dengan prosentase 50 % yaitu 30,702 % dari daya maksimal pengoperasian tiga unit turbin dan generator. Tujuan dari penelitian ini adalah untuk mengetahui debit andalan PLTA Koto Panjang, optimalisasi yang dilakukan dalam mengoptimasi PLTA Koto Panjang, daya listrik yang dihasilkan dari hasil optimalisasi tersebut dan perbandingannya. Metode empiris Penman digunakan untuk menghitung nilai evaporasi. Debit andalan untuk debit outflow PLTA saat ini dan setelah dioptimalisasi dihitung menggunakan rumus daya listrik dan metode mass curve. Selanjutnya debit outflow PLTA yang telah didapatkan dianalisis di dalam tabel water balance menggunakan metode sequent peak analysis. Hasil yang didapatkan adalah debit andalan PLTA saat ini dan setelah dioptimalisasi yaitu 305,319 m3/det dan 384,465 m3/det dengan prosentase 51,995 % dan 39,235 %. Optimalisasi dilakukan dengan menyesuaikan debit outflow dengan volume air yang ada pada storage saat itu. Daya listrik setelah dioptimalisasi adalah sebesar 13.302,315 kWatt pada musim kering dan 143.551,645 kWatt pada musim hujan. Daya listrik yang dihasilkan PLTA saat ini adalah sebesar 13.302,315 kWatt pada musim kering dan 114.000 kWatt pada musim hujan. Sehingga daya listrik yang dihasilkan PLTA setelah dioptimalisasi mengalami kenaikan dari daya listrik sebelum dioptimalisasi sebesar 29.551,645 kWatt. Karena kenaikan daya melebihi kapasitas generator PLTA saat ini, maka terjadi penambahan 1 generator 30.000 kWatt atau 30 MW. [EN] In the dry season, Koto Panjang Hydroelectric Power Plant has operated one turbine and generator unit so the power produced is not optimal. In the same season, this hydropower plant has also operated three turbines and generators but only produces 35 MW of electricity by percentage 50% which is 30,702 % of the maximum power from operating three turbine and generator units. The purpose of this research is to determine the mainstay discharge of Koto Panjang Hydroelectric Power Plant, optimization will be used for Koto Panjang hydroelectric power plant, power can produce from its optimization and its comparison. The Penman empirical method was used to calculate the evaporation value. The mainstay discharge for hydropower plant outflow discharge at this time and after being optimized is calculated using the electrical power formula and the mass curve method. Furthermore, the hydroelectric power plant outflow discharge has obtained is analyzed in the water balance table using the sequent peak analysis method. The results obtained are the current mainstay discharge of hydroelectric power plant and after optimization, which are 305,319 m3/s and 384,465 m3/s with a percentage of 51,995% and 39,235%. Optimization is done by adjusting the outflow discharge to the volume of water in the storage at that time. The electric power after optimization is 13.302,315 kWatt in the dry season and 143.551,645 kWatt in the rainy season. The current electricity generated by hydroelectric power plant is 13.302,315 kWatt in the dry season and 114.000 kWatt in the rainy season. Therefore the electric power generated by hydroelectric power plant after optimization has increased from the electric power before it is optimized which is 29.551,645 kWatt. Because the increasing of the electric power exceeds the capacity of the current hydroelectric power plant generator, there is an addition 1 generator which is 30.000 kWatt or 30 MW.

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Evidenciação Ambiental: uma análise dos relatórios de sustentabilidade da Usina Hidrelétrica Itaipu com base na Global Reporting Initiative – GRI ## Environmental Disclosure: an analysis of the sustainability reports of the Itaipu Hydroelectric Plant based on the Global Reporting Initiative – GRI

Amazônia Organizações e Sustentabilidade ◽

10.17648/aos.v10i2.2317 ◽

2021 ◽

Vol 10 (2) ◽

pp. 288

Author(s):

Regiane Valejo Maciel ◽

Carlos Jaelso Albanese Chaves ◽

Giuliano Oliveira De Macedo

Keyword(s):

Power Plant ◽

Large Scale ◽

Hydroelectric Plant ◽

Hydroelectric Power Plant ◽

Global Reporting Initiative ◽

Hydroelectric Power ◽

Social Relevance ◽

Environmental Disclosure ◽

Sustainability Reports

Considerando que o setor de hidrelétricas causa impactos ambientais de larga escala e que a evidenciação ambiental vem se tornando cada vez mais relevante para as organizações, a presente pesquisa teve por objetivo avaliar a qualidade da evidenciação ambiental praticada nos relatórios de sustentabilidade da Usina Hidrelétrica Binacional Itaipu. Quanto à abordagem, este estudo fundamenta-se na pesquisa qualitativa, e quanto ao objeto, este estudo se classifica como uma pesquisa documental. Para atingir o objetivo desta pesquisa, a coleta dos dados foi proporcionada pelos relatórios de sustentabilidade da Usina Hidrelétrica Itaipu do período de 2014 a 2019, a partir da confrontação dos princípios apresentados pela Global Reporting Initiative para a elaboração do relatório com o conteúdo dos relatórios divulgados pela Itaipu. A análise dos relatórios indica que a Itaipu apresentou falhas quanto a aderência do princípio “comparabilidade”, ao omitir informação sobre os valores investidos nos projetos analisados, fazendo com que a leitura do stakeholder ficasse prejudicada, entretanto, é possível identificar que a Itaipu buscou manter-se alinhada com os demais princípios analisados. O presente estudo contribuiu por buscar preencher a lacuna sobre a análise de evidenciação ambiental de uma organização de relevância social como a Itaipu Binacional.ABSTRACTConsidering that the hydroelectric sector causes large-scale environmental impacts, and that environmental disclosure is becoming increasingly relevant for organizations, this research aimed to evaluate the quality of environmental disclosure practiced in the sustainability reports of the Binational Itaipu Hydroelectric Power Plant . As for the approach, this study is based on qualitative research, and as for the object, this study is classified as documentary research. To achieve the objective of this research, data collection was provided by the sustainability reports of the Itaipu Hydroelectric Power Plant from 2014 to 2019, based on the confrontation of the principles presented by the Global Reporting Initiative guidelines with the content of the reports disclosed by Itaipu. The analysis of the reports indicates that Itaipu failed to adhere to the "comparability" principle, by omitting information on the amounts invested in the projects analyzed, causing the stakeholder reading to be impaired, however, it is possible to identify that Itaipu sought to maintain aligned with the other principles analyzed. This study contributed by seeking to fill the gap on the analysis of environmental disclosure in an organization of social relevance such as Itaipu Binational.

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Web-Based Meteorological Information System Design and its Applications in Intelligent Hydroelectric

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.659.208 ◽

2013 ◽

Vol 659 ◽

pp. 208-212

Author(s):

Zhi Jian Wu ◽

Ying Zi Song ◽

Hai Song Zhou

Keyword(s):

Information System ◽

Power Plant ◽

System Design ◽

Hydroelectric Power Plant ◽

Hydropower Plant ◽

Functional Design ◽

Hydroelectric Power ◽

Web Based ◽

Information System Design ◽

Development Direction

This article describes an software architecture and functional design of the meteorological information system based on Web technology, which embedded a smart hydropower plant system ,introduces an actual construction of a hydroelectric power plant meteorological information system of a smart hydropower plant. At the same time, explore the prospects and development direction of the meteorological information system smart hydropower plant.

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