scholarly journals Potential of tidal power plants with least square method on Toaya Beach

2022 ◽  
Vol 1212 (1) ◽  
pp. 012038
Author(s):  
H Azikin ◽  
Nurhidayat ◽  
E Affandy ◽  
S S Syahruddin
Keyword(s):  
Water Level ◽  
Alternative Energy ◽  
Power Plants ◽  
Electrical Power ◽  
Least Square Method ◽  
Tidal Energy ◽  
Least Square ◽  
Tidal Power ◽  
Height Difference ◽  
The Waves

Abstract The use of energy, especially electrical power, is needed by the wider community— lots of alternative energy from nature, especially in Indonesia that can be utilized to produce electricity. One of the newest alternative examples is the energy produced by tides. Tidal energy is a type of renewable energy that is relatively more predictable in number. One method that can process the waves is the Least Square Method. Where the results of data processing using this method can be known based on tidal observations for 15 days on Toaya Beach located in Donggala Regency, Central Sulawesi, the types of tidal types that occur based on the results of Formzahl’s count is 0.357 that the tidal types that occur are varied types leaning to double daily, with a Root Mean Square Error (RMSE) of 0.028, which means that the difference between predictive results and observational data is accurate. Then also obtained the value of the design water level elevation that is the highest high water level (HHWL) is 2.7 meters, and the lowest low water level (LLWL) is -0.3 meters with a height difference is 3.0 meters. So with the high height difference, the total energy generated by two times a day with a sea area of 9 km2 which is capable of producing energy movement from seawater can be calculated the potential energy generated from the waves of Toaya Beach, which is 5,53 MW.

scholarly journals Potential of tidal power plants on Tibo Beach with spektrum method

2022 ◽  
Vol 1212 (1) ◽  
pp. 012039
Author(s):  
Setiyawan ◽  
A Rusdin ◽  
T Amaliah ◽  
Olphino
Keyword(s):  
Water Level ◽  
Electricity Generation ◽  
Alternative Energy ◽  
Power Plants ◽  
Fossil Fuels ◽  
Electrical Energy ◽  
High Water ◽  
Water Levels ◽  
Tidal Power ◽  
Alternative Energy Sources

Abstract As time evolved, the demand for electrical energy also increased. As a result, renewable energy is needed to replace fossil fuels as fuel for electricity generation. Tidal water is one of the renewable alternative energy sources used as fuel for electricity generation. The tides will never run out and can also be predicted. One method that can predict data about waves is the Spectrum Method. Tide prediction data can be indicated by carrying out tidal height observations for 15 days at Tibo Beach, Donggala Regency, Central Sulawesi. Based on observations, the data obtained are the highest high water level (HHWL) is 2.4 meters, and the lowest low water level (LLWL) is 0.1 meters. Also, the type of tides on the Tibo coast is a type of mixed waves that tend to double daily, there are two tides with high water and two tides with low water with different water levels. Because the value of formzahl is 0.312. With a 2.4 meter high HHWL and a sea area of 35.4 km2, the electricity generated is 13.08 MW.

Estimation and Feasibility of Generating Power Using Tidal Energy

2020 ◽  
Author(s):  
Satya Prasad Paruchuru ◽  
Siva Kalyani Koneti ◽  
Deepthi Jammula ◽  
Jashwitha Nuthalapati
Keyword(s):  
Renewable Energy ◽  
Power Plants ◽  
Space Exploration ◽  
Tidal Energy ◽  
Regions Of Interest ◽  
Working Fluid ◽  
Tidal Power ◽  
The Cost

Abstract Capturing the tidal energy is one of the ways of tapping natural and renewable energy which do not involve the cost of working fluid/ fuel. The present work focuses on some of the feasibility aspects of setting up of major tidal power plants along the seacoast. Besides, the present study synergizes on methods of estimating the power-producing capacities in regions along the seacoast. Estimation of power-producing capacities, calendar month-wise, and lunar month-wise gave handy information. Also, the estimation of power-producing capacities of different regions along a location gave clarity on the probable regions of interest for producing power simultaneously. A comparison of the estimates with the details of the literature authenticated the study. A discussion of producing more tidal power in specific locations gave insights into the aspects that may have been ignored in the literature. Geographic restrictions along the local seacoast like identifying the security-sensitive regions rationalized the estimating procedures. The paper includes a discussion of various factors that address the feasibility concerns. The study supposedly helps space exploration too.

The State and Prospects of Development of Power Supply Systems of Metallurgical Enterprises with On-Site Power Plants

2021 ◽  
Vol 64 (4-5) ◽  
pp. 79-89
Author(s):  
Gennady Kornilov ◽  
◽  
Alexandra Varganova ◽  
Andrey Shemetov ◽  
Olga Gazizova ◽  
...  
Keyword(s):  
Power Supply ◽  
Alternative Energy ◽  
Power Plants ◽  
Thermal Power ◽  
Electrical Power ◽  
Electrical Equipment ◽  
Digital Twins ◽  
Complex Automation ◽  
Supply Systems ◽  
Special Meaning

The article considers the features of design of industrial power supply system of metallurgical enterprises with on-site electrical power generation. The problems of increasing the efficiency of the main electrical equipment of on-site power plants are formulated. The analysis of development trends in the energy sector of Russian metallurgy is carried out, on the basis of which the importance of industrial on-site power plants is shown. The problem of choosing a generator automatic excitation control system of on-site power plants is con-sidered and possible ways of its solution are given. The task of regime optimization of industrial on-site power plants is considered and original optimization algorithms are presented. Methods of increasing the reliability of power supply of critical equipment and mechanisms involved in the technological process of thermal power plants are proposed. The urgency of the tasks of complex automation and digitalization in the industrial power supply systems is shown, while the special meaning of "digital twins" is noted. Possible prospects for the development of on-site power plants in the context of the decarbonization policy and the transition to alternative energy are considered.

scholarly journals Analisis Pasang Surut di Perairan Sungai Musi Menggunakan Metode Least Square (Studi Kasus Intake Air Baku Sistem Gandus Kota Palembang)

CANTILEVER ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 115-124
Author(s):  
Agus Saputra ◽  
Taufik Ari Gunawan ◽  
Imroatul Chalimah Juliana
Keyword(s):  
Water Level ◽  
River Water ◽  
Water Intake ◽  
Least Square Method ◽  
Least Square ◽  
Primary Data ◽  
Raw Water ◽  
Pump Operation ◽  
Safe Level ◽  
Musi River

The tides, which affect the water level of the Musi River causes some problems to occur in Palembang City. One of the main problems related to the tides of the Musi River, especially the low tide, is the failure of the raw water intake building of Regional Drinking Water Company  (PDAM) Tirta Musi, Palembang City to operate. At a certain time the river water level recedes, the minimum water level entering the intake pump room is lower than the safe level for the pump to run. In this study, an analysis of the tides of the Musi River was carried out using the Least Square method to evaluate the design of the raw water intake building for the Gandus system to disclose whether it meets the minimum elevation requirements for pump operation. The field observations of the tides were carried out for 15 days for every 1 hour to obtain the primary data for this study using the Hobo Water Meter. The results of this study indicate that the type of the tides in the location of the study is a mixed tidal type with a Formzahl Value of 2.01. 4. Against the design plan of the gandus system of raw water intake, there is a chance that the elevation of the river water level is at 0.5 m from the end of the pump suction pipe, in which the pump cannot function.  

TECHNICAL REALIZATION OF THE PROJECT OF SEVERNAYA TIDAL POWER PLANT IN THE BARENTS SEA

2020 ◽  
pp. 59-67
Author(s):  
A.M. BAKSHTANIN ◽  
◽  
A.P. KRYLOV ◽  
T.I. MATVEEVA ◽  
E.S. BEGLYAROVA
Keyword(s):  
Industrial Development ◽  
Power Plants ◽  
Barents Sea ◽  
World Ocean ◽  
Tidal Energy ◽  
Entire Period ◽  
Successful Implementation ◽  
Hydroelectric Power ◽  
Tidal Power ◽  
The Moment

The relevance of the development of tidal hydropower is extremely high. Tidal energy is the only guaranteed energy on our planet during the entire period of use since it is guaranteed by cosmic forces unchangeable in the foreseeable future. To optimize power generation, TPP turbines should be used in several modes, the choice of which depends on the power required at the moment, the needs and capabilities of other power producers. If TPPs and NPPs need oil, gas, coal, uranium; for hydroelectric power plants – river water (and now there is a shallow period); for wave, wind and solar power plants – sun and wind are needed (today they are available, tomorrow –no); then for a TPP in any range of the World Ocean, the generation of electricity depends only on the attraction of the Moon and the amount of energy received can be accurately determined for any period of time for the entire period of operation, therefore, the TPP can be controlled at a distance of hundreds of kilometers (example of TPP Rane) having only security at the station. The successful implementation of the Severnaya TPP project and its innovative components would be the last stage on the way to industrial development of tidal energy in Russia. The final criterion for the commercial success of a TPP is the cost per 1 kWh of electricity generated by it. Severnaya TPP is designed to supply electricity to remote areas and is therefore economically profitable.

scholarly journals The Potential for Integration of Wind and Tidal Power in New Zealand

2020 ◽  
Vol 12 (5) ◽  
pp. 1807 ◽  
Author(s):  
Navid Majdi Nasab ◽  
Jeff Kilby ◽  
Leila Bakhtiaryfard
Keyword(s):  
Renewable Energy ◽  
New Zealand ◽  
Hybrid System ◽  
Test Performance ◽  
Alternative Energy ◽  
Fossil Fuels ◽  
Simulation Models ◽  
Tidal Energy ◽  
Tidal Power ◽  
Suitable Alternative

This research focuses on proposing and evaluating an optimized hybrid system of wind and tidal turbines operating as a renewable energy generating unit in New Zealand. Literature review indicates increasing worldwide investment in offshore renewable energy in recent years. Offshore energy shows a high potential as an alternative energy generation solution to that of fossil fuels. Using the capacities of wind and tidal power in renewable technologies would be a suitable alternative for fossil fuels and would help prevent their detrimental effects on the environment. It is a cost-effective procedure for the power generation sector to maximize these renewables as a hybrid system. At the design phase, turbine types appropriate to environmental conditions for an area with high wind speed and tidal flow need to be considered. When selecting which turbines should be used, horizontal or vertical axis, number and length of blades, and optimized rotational speed are all important to get maximum capacity from either the wind or tidal energy for the hybrid system. Comprehensive simulation models of the hybrid system are now being set up, using several available commercial software packages such as QBlade, Simulink, and RETScreen. Several different parameters will be required for these simulation models to run in order to test performance, capacity and efficiency of the proposed hybrid system. To decide which regions are suitable for the hybrid system, it will be necessary to analyze available wind and tide records from NIWA, and online databases such as GLOBAL ATLAS. This next phase of research will aim to create optimized scenarios for the hybrid model by considering the effect of wind and water speed on performance. After deciding which region and scenarios are suitable, it will also be necessary to evaluate the costs and returns of a hybrid system. This final phase will be performed using the RETScreen simulation model.

scholarly journals A Method of Containment Leakage Rate Estimation Based on Convolution Neural Network

2021 ◽  
Vol 9 ◽  
Author(s):  
Hao Wang ◽  
Jingquan Liu ◽  
Guangyao Xie ◽  
Xianping Zhong ◽  
Xiangqi Fan
Keyword(s):  
Neural Network ◽  
Convolutional Neural Network ◽  
Nuclear Power ◽  
Power Plants ◽  
Least Square Method ◽  
Leakage Rate ◽  
Least Square ◽  
Nonlinear Fitting ◽  
The Third ◽  
Start Up

As the nuclear power plant containment is the third barrier to nuclear safety, real-time monitoring of containment leakage rate is very important in addition to the overall leakage test before an operation. At present, most of the containment leakage rate monitoring systems calculate the standard volume of moist air in the containment through monitoring parameters and calculate the daily leakage rate by the least square method. This method requires several days of data accumulation to accurately calculate. In this article, a new leakage rate modeling technique is proposed using a convolutional neural network based on data of the monitoring system. Use the daily monitoring parameters of nuclear power plants to construct inputs of the model and train the convolutional neural network with daily leakage rates as labels. This model makes use of the powerful nonlinear fitting ability of the convolutional neural network. It can use 1-day data to accurately calculate the containment leakage rate during the reactor start-up phase and can timely determine whether the containment leak has occurred during the start-up phase and deal with it in time, to ensure the integrity of the third barrier.

scholarly journals Impact of FDI, COP, and Inflation to Export in Five ASEAN Countries

2018 ◽  
Vol 19 (1) ◽  
pp. 94
Author(s):  
Nanda Adhi Purusa ◽  
Nurul Istiqomah
Keyword(s):  
Crude Oil ◽  
Alternative Energy ◽  
Statistical Tests ◽  
Least Square Method ◽  
Fixed Effect Model ◽  
Least Square ◽  
Oil Price ◽  
Coefficient Of Determination ◽  
Crude Oil Price ◽  
New Production

The effects of foreign direct investment (FDI), crude oil price and inflation on the export are mainly examined in the case of Indonesia, Malaysia, Philippines, Thailand, and Vietnam by using data from 2000 to 2015. These countries have opportunity to increased prosperity in the ASEAN Economic Community (AEC). Therefore, increasing productivity and international trading are important for each country. This study employed panel data model in the analyses and the findings show that Fixed Effect Model with Generalized Least Square method is implemented.  Hence, using this method is determined by likelihood test and Hausman test. The statistical tests in this study consist of partial coefficient test, stimulant, and coefficient of determination. The result shows that FDI and crude oil price have positive effect and significant on export, but inflation has negative effect and significant on export. Constant value shows that each country has the difference condition. Simple bureaucracy is needed to increased efficiency that will attract foreign investors to invest their fund and the discovery of alternative energy and new production technique can increase a country productivity significantly in producing goods or services for both domestic and export-oriented.

scholarly journals Tidal Energy Integrated Robust Frequency Control of an Islanded AC Microgrid with Improved-MFO Tuned Tilt Controller

2019 ◽  
Vol 9 (1) ◽  
pp. 3685-3692
Keyword(s):  
Frequency Control ◽  
Electrical Power ◽  
Electrical Energy ◽  
Tidal Energy ◽  
Tidal Power ◽  
Research Article ◽  
Distribution Generation ◽  
Microgrid Control ◽  
System Frequency ◽  
Ac Microgrid

In recent electrical energy scenario different renewable energy based distribution generation (DG) systems have been developed to provide electrical power to distant and remote consumers. In view of this current research article presents a Tidal Power Plant (TPP) and its integration with an Islanded AC Microgrid system. The tidal energy based TPP is modelled to generate required electrical power. However the inherent dynamic behaviour of TPP largely affects the microgrid system frequency especially in islanded mode of operation. In regard to this to obtain necessary control mechanism in an islanded AC microgrid system , present research article proposes a tilt multistage TDF/(1+TI) controller and to show effectiveness of proposed tilt controller for microgrid control it has been compared with multistage PDF/1+PI and PID controllers. To obtain optimal gain parameters of above implemented controllers an Improved- Moth Flame Optimization (I-MFO) technique has been proposed for this study. To justify viability of proposed I-MFO algorithm its performances have been compared with original MFO algorithm. Finally it has been noticed that to obtain robust frequency control in an islanded AC microgrid system, proposed I-MFO optimized tilt multistage controller exhibits outstanding performance under wind, solar and tidal energy uncertainties.

scholarly journals The analytical and experimental study on the establishment of a tidal power plant in South Africa

2021 ◽  
Author(s):  
◽  
Namhla Faith Mtukushe
Keyword(s):  
South Africa ◽  
Energy Source ◽  
Power Plant ◽  
Alternative Energy ◽  
Fossil Fuels ◽  
Tidal Energy ◽  
Tidal Power ◽  
Tidal Power Plant ◽  
Tidal Stream ◽  
Tidal Streams

The majority of South Africa’s electricity is generated from fossil-fuel plants that use mainly coal. In these power plants, the combustion of these fossil fuels liberates greenhouse gasses into the atmosphere that contribute to climate change. This problem coupled with the rapid depletion of fossil fuels has necessitated the need to explore the alternative form of energy such as renewable energy. Tidal energy is a form of ocean energy that can be considered as an alternative energy resource or renewable energy source. This form of energy has not been explored in South Africa, the only country in the world that is bounded by two oceans; the Indian and the Atlantic. Tidal energy can be harnessed from the movements of tides to generate electrical power. This study considered the possibility of harnessing tidal energy as the alternative energy source for power generation which can be used to mitigate the challenges associated with the energy crisis currently being experienced in the country. For this study, an extensive literature review was carried out to understand the tidal phenomenon, the concept of energy conversion from tides, the different techniques or technologies that can be used to generated power from tides. There are two main technologies used for converting tidal energy to electrical energy and these are the tidal barrage and the tidal streams. Based on the inferences drawn from the literature reviews concerning the tides experienced around the South Africa coastal region, it was identified that the tidal stream technique is applicable. Harmonic analysis of the tidal resource for four identified sites was conducted, from these analyses, Esikhawini was selected as an optimum site. Tidal streams extract the kinetic energy of tides and the mode of operation of tidal stream plants is determined by the type of tidal turbine employed. Several turbine designs were reviewed, a helical cross-flow turbine was selected due to its self-starting capability and its ability to operate in reverse stream flows. For this helical turbine, an analytical model using the blade element momentum theory (BEMT) was developed and was implemented on MATLAB environment. For the experimentation, a prototype was developed and tested in a laboratory concrete flume in the department of Civil Engineering at the University of KwaZulu-Natal. Based on the experimental results, an analysis of the unit turbine was done which was used to propose a conceptualized tidal power plant. Hence, the proposed tidal power plant was used to justify the reason for embarking on this study which is to ascertain the possibility of establishing a tidal power plant in South Africa.

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