Vibration Characteristics of a 50MW Francis Type Hydro Power Plant

2018 ◽  
Author(s):  
Y. Cho ◽  
Y. R. Oh ◽  
J. W. Choi ◽  
Y. J. Kim ◽  
J. Novotny ◽  
...  
Keyword(s):  
Power Plant ◽  
Hydroelectric Power Plant ◽  
Vibration Characteristics ◽  
Operating Conditions ◽  
Scale Model ◽  
Small Scale ◽  
Hydroelectric Power ◽  
Rotating Shaft ◽  
Engineering Structures ◽  
Hydro Power

Vibration characteristics of the rotating machinery has been usually managed to facilitate the deterioration of the equipment and to prevent accident in advance. In a hydropower turbine, pressure pulsation characteristics to induce vibration is investigated during the model testing with a small scale model turbine for various operating conditions, and a prototype turbine is constructed to operate stably on the site. However, the model test has limitation that can’t be considered together with the vibration characteristics of a generator itself and of civil engineering structures for the building that support a turbine and a generator. Therefore, field tests of vibration for a hydroelectric power plant are carried out periodically, thereby maintaining reliability for safe operation of power generation facilities. In the study, the vibration of a Francis type hydroelectric power plant operated over 30 years and overhauled a year and a half ago was measured and its characteristics has been investigated. Displacement and velocity sensors were installed at appropriate positions to measure the vibration of the rotating shaft and bearing support of a turbine and a generator, and the vibration characteristics of a typical hydroelectric power plant have confirmed by analyzing the measurement results. The vibration characteristics of rotating shaft and non-rotating parts of the hydroelectric turbine have been analyzed to confirm the degree of aging of the plant. Vibration in the power plant building depending on the operating conditions was also measured to be large enough to sense, and its frequency characteristics were analyzed.

Water Level Control of Small-scale Hydroelectric Power Plant

2002 ◽  
Vol 122 (6) ◽  
pp. 989-994
Author(s):  
Shinichiro Endo ◽  
Masami Konishi ◽  
Hirosuke Imabayashi ◽  
Hayami Sugiyama
Keyword(s):  
Power Plant ◽  
Water Level ◽  
Hydroelectric Power Plant ◽  
Small Scale ◽  
Hydroelectric Power ◽  
Level Control

scholarly journals SAVING RESOURCES IN THE CONSTRUCTION OF HYDROELECTRIC POWER PLANTS

2019 ◽  
Vol 1 ◽  
pp. 20
Author(s):  
Mikhail Balzannikov
Keyword(s):  
Power Plant ◽  
Peak Power ◽  
Power Plants ◽  
Hydroelectric Power Plant ◽  
Operating Conditions ◽  
Hydroelectric Power ◽  
Construction Work ◽  
Construction Costs ◽  
Suction Pipe ◽  
Hydroelectric Power Plants

The article describes run-of-the-river hydroelectric power plants. The authors specify the importance of performing technical and economic calculations in justifying the large-sized units of the water-supplying channel of a run-of-the-river hydroelectric power plant: turbine pits and suction (discharge) pipes. The study shows that the amount of construction work and the total cost of building a hydroelectric power plant depend on the size of these water supply units. The research objective is to analyze the validity of establishing the main dimensions of the suction pipes for modern technical and economic conditions. The researchers use the discounted income method. The calculations are performed for a hydroelectric power plant with an elbow suction pipe. The analysis of how the operating conditions of a hydroelectric power plant influence the savings of construction resources is carried out. The analysis shows that saving construction resources by reducing the length of the suction pipe is justified if the hydroelectric power plamt is designed to work only at peak power loads. For hydroelectric power plants operating at semi-peak or base power loads, the additional construction costs would be appropriate if leading to the decrease in pressure loss and to the increase in electricity generation.

scholarly journals Performance of rotational speed controlled small-scale head-dependent hydroelectric power plant

2008 ◽  
Vol 1 (06) ◽  
pp. 500-501
Author(s):  
Tuomo Lindh ◽  
◽  
Risto Tiainen ◽  
Jero Ahola ◽  
Markku Niemela ◽  
...  
Keyword(s):  
Power Plant ◽  
Rotational Speed ◽  
Hydroelectric Power Plant ◽  
Small Scale ◽  
Hydroelectric Power

scholarly journals Evaluasi Keandalan PLTA Bakaru

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.

scholarly journals Design and Construction of Single Phase Radial Flux Permanent Magnet Generators for Pico hydro Scale Power Plants Using Propeller Turbines in Water Pipes

2020 ◽  
Vol 188 ◽  
pp. 00006
Author(s):  
Eko Yohanes Setyawan ◽  
Yusuf Ismail Nakhoda ◽  
Awan Uji Krismanto ◽  
Lalu Mustiadi ◽  
Erkata Yandri ◽  
...  
Keyword(s):  
Power Plant ◽  
Power Plants ◽  
Permanent Magnets ◽  
Water Pressure ◽  
Hydroelectric Power Plant ◽  
Small Scale ◽  
Hydroelectric Power ◽  
Special Profile ◽  
Water Turbine ◽  
Main Components

Pico hydro or a small scale hydroelectric power plant is used as the rotating energy of the generator. Pico hydro is a hydroelectric power plant that has a power of less than 5 kW. Technically, Pico hydro has three main components namely water, turbine and generator. Turbine type propeller reaction has a special profile that causes a decrease in water pressure during the blades. This pressure difference exerts force on the blade so that the runner (rotating part of the turbine) can rotate. Permanent magnets are used to produce magnetic flux. Permanent magnets used are rare-eatrhrod magnet material, neodymium-iron-boron NdFeB with N35 type. The planned generator released is 36.85 V, 500 rpm, 50 hz. This designed water turbine has four blades which cannot change its angle. As for the measurement results produce a voltage of 35.1 V with a manufacturing efficiency of 95 %. Charging the battery voltage must be more than 12 V, therefore the generator must be turned at least 200 rpm with a voltage of 14 V to be used for charging batteries.

scholarly journals Rancang Bangun Simulator Kincir Pembangkit Listrik Floating Hydro

2021 ◽  
Vol 2 (1) ◽  
pp. 27-31
Author(s):  
Dian Prabowo ◽  
Pujono Pujono
Keyword(s):  
Power Plant ◽  
Power Plants ◽  
Design Method ◽  
Hydroelectric Power Plant ◽  
Process Time ◽  
Hydroelectric Power ◽  
Hydro Power ◽  
New Energy ◽  
Simulator Design ◽  
Increasing Demand

Energy consumption in Indonesia is increasing every year, the fulfillment of the energy needed must be overcome. Energy is something that is really needed by anyone, from humans or animals to be able to do something or work. This energy is also abstract, its existence can be felt, but it is difficult to prove. Electricity needs of the community today are a basic need. Electricity usage is almost 24 hours nonstop. To cope with the increasing demand for electricity, it is necessary to utilize natural resources that can be used as new energy resources. The floating hydro power plant simulator is a hydroelectric power plant that utilizes the flow of water from a pump to drive a waterwheel, a device designed to make it easier for students to learn basic electrical engineering and fluid mechanics. The purpose of this design is to design and build a floating hydro power plant and test the tool. The design method used the VDI 2222 method approach, which includes planning, conceptualizing, designing, finishing. The results of the design were according to the method used, namely in the form of a waterwheel simulator design for power plants. The estimated production process time for the manufacture of a floating hydro simulator for cutting 3.9 hours; process of gurdi 3.08 hours; lathe process 1.3 hours; 1.58 hours assembly process; finishing process 2.75 hours = 1.2 days (1 day = 8 hours). The total cost of making the machine was Rp. 2.605,740.00. The driven pulley test results in 65.4 rpm and the driven pulley produced 304 rpm and the output was 12.3 volts.

scholarly journals WATERMILL AND SMALL-SCALE HYDROELECTRIC POWER PLANT LANDSCAPES ASSESSED ACCORDING TO ECOLOGICAL ASPECTS / VANDENS MALŪNŲ IR MAŽŲJŲ HIDROELEKTRINIŲ KRAŠTOVAIZDŽIO VERTINIMAS EKOLOGINIAIS ASPEKTAIS

2013 ◽  
Vol 5 (3) ◽  
pp. 266-274 ◽  
Author(s):  
Lilita Lazdāne
Keyword(s):  
Power Plant ◽  
Hydroelectric Power Plant ◽  
Field Studies ◽  
Small Scale ◽  
Hydroelectric Power ◽  
Local Planning ◽  
Ecological Aspects ◽  
Distribution Ranges ◽  
Landscape Character ◽  
Definition Of

Research of watermill and small-scale hydroelectric power plant (HPP) landscapes in Latvia according to ecological aspects is a part of a more complex research. The aim of this research is to examine the existing situation of watermill and small-scale HPP landscapes in Latvia by applying the ecological assessment criteria, and then try to formulate a definition of common tendencies of the landscape character. This paper provides a landscape inventory matrix for research in the field studies of landscape identification at the local planning level. The duration of the research was from 2010 to 2012. The research includes 42 territories starting with the three most densely developed areas in Latvia: in Latgale, Kurzeme and Vidzeme uplands distribution ranges. The research results reflect tendencies of the landscape features assessed according to the previously developed criteria of ecological aspects. Santrauka Latvijos vandens malūnų ir mažųjų hidroelektrinių kraštovaizdžio vertinimo ekologiniais aspektais tyrimas yra kompleksinio tyrimo dalis. Tyrimo tikslas yra įvertinti esamą vandens malūnų ir mažųjų hidroelektrinių kraštovaizdžio situaciją ekologiniais aspektais ir išryškinti bendrąsias kraštovaizdžio charakterio tendencijas. Straipsnyje atspindėta kraštovaizdžio inventorizavimo matrica kraštovaizdžiui identifikuoti planavimo lygmeniu. Tyrimas atliktas 2010–2012 metais. Tyrimas apima 42 teritorijas, išsidėsčiusias trijose tankiausiai apgyvendintose Latvijos dalyse: Latgaloje, Kuržemėje ir Vidžemėje. Remiantis anksčiau suformuluotais kriterijais kraštovaizdžiui tirti ekologiškumo aspektais, tyrimo rezultatai atskleidžia tam tikras tendencijas.

scholarly journals Energy price-based control strategy of a small-scale head-dependent hydroelectric power plant

2008 ◽  
Vol 1 (06) ◽  
pp. 514-519
Author(s):  
Risto Tiainen ◽  
Tuomo Lindh ◽  
Jero Ahola ◽  
Markku Niemela ◽  
Ville Sarkimaki
Keyword(s):  
Power Plant ◽  
Control Strategy ◽  
Hydroelectric Power Plant ◽  
Small Scale ◽  
Energy Price ◽  
Hydroelectric Power

scholarly journals Evaluation of the Kama Riverbed Deformations and Development of Recommendations on Regulating the Non-metallic Building Materials Extraction in the Lower Reaches of Kamskaya Hydro Power Plant

2018 ◽  
Author(s):  
Keyword(s):  
Power Plant ◽  
Power Plants ◽  
Building Materials ◽  
Large City ◽  
Hydrological Regime ◽  
Hydroelectric Power Plant ◽  
Significant Loss ◽  
Hydroelectric Power ◽  
Lower Tail ◽  
Hydro Power

This article considers issues of regulating the non-metallic building materials extraction in the lower reaches of large hydroelectric power plants. The problem is quite urgent when a large city is located in the lower tail of a hydroelectric power plant and the process of extraction of non-metallic building materials is superimposed on the rather complicated issues of interaction with other water users. The article employs the technique of mutual overlap of bathymetric surveys for the previous periods combined with the analysis of the declared volumes of extraction of non-metallic building materials. A simulating hydrodynamic model of the Votkinsk reservoir has been made, with taking into account the data on the fractional composition of bottom sediments. During the development of the model, we used the software products HEC-RAS v.4.1 and SMS v.11.1. The use of onedimensional and two-dimensional models made it possible to simplify calculations without significant loss of accuracy of calculations. Based on these models, a deformation of the bed was calculated under the standard conditions of the hydrological regime of the Kama and Votkinsk reservoirs. The outcome of the work is recommendations on the allocation of sites in the lower tail of the Kamskaya HPP, where the extraction of non-metallic building materials is not recommended, the areas where production is possible subject to a number of conditions and restrictions concerning the volume of production and areas where production is possible without restrictions.

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