LTD “Gydroenergospetsstroy” was established in Moscow in 2006 than there was a branch office opened in 2008 in Saint-Petersburg. The main activities of the company are scientific research and experimental development in the field of alternative energy sources, organic architecture, production and technical design. In 2011 year SPA Gydroenergospetsstroy became a resident of the innovative center Skolkovo.
The document discusses power generation through photovoltaic systems. It defines photovoltaics as using semiconductors to convert solar radiation directly into electricity. Photovoltaic systems use solar panels to convert sunlight into electricity for use. Large grid-connected photovoltaic systems can provide power for many customers. The document outlines photovoltaic applications, advantages like being pollution-free, and provides examples of large photovoltaic power stations around the world ranging from 1 MW to 200 MW in size.
Renewable energy sources include sunlight, geothermal heat, tides, wind and biomass. These sources generate clean energy without pollution or climate change. The main types are solar, wind, hydropower, biofuels and geothermal. Solar energy is captured through photovoltaic cells and solar thermal collectors. Wind energy is harnessed via wind turbines in wind farms, and hydropower uses the force of moving water in dams to generate electricity. Biomass and biofuels come from organic matter like plants, and geothermal taps heat from within the earth.
Emc compliance-for-renewable-resource-power-systemsIntertek CE
Renewable resource power systems have unique electromagnetic compatibility characteristics that must be considered. The document discusses various renewable energy sources including biomass, geothermal, hydroelectric, solar, tidal, wave, and wind power. For each energy source, it provides an overview and discusses relevant EMC considerations regarding emissions, susceptibility, and interactions with powerline and wireless communications. Large utility-scale renewable power plants are generally exempt from EMC standards, but internal control systems must meet industrial standards to ensure reliable operation.
Global Wind Energy development in a European R&D perspectiveWinterwind
Global wind energy development from a European perspective focuses on three main points:
1) Mainstream wind power development has primarily occurred in moderate climates, while cold climates, offshore development, and other remote areas remain underdeveloped areas of potential for wind energy.
2) As the wind power industry continues to grow and mature, technologies are scaling up in size and migrating offshore to capture larger markets.
3) Europe remains a leader in wind power development, with many countries surpassing 5% of electricity needs met by wind and Denmark reaching over 25% through supportive policies driving further growth and cost reductions in the industry.
This document discusses an intelligent home energy management system for an Indian residential home using a hybrid solar (PV)-grid/diesel generator (DG) power system controlled by a fuzzy adaptive control model. The system is designed to meet the daily energy demand of 60-70 kWh through optimal power sharing between the PV, grid, and DG sources. Simulation results show the fuzzy control strategy reduces grid/DG usage and results in average electricity cost savings of 50% per day through intelligent battery and load energy management.
The document discusses the advantages and design of a solar barge system for generating renewable energy from photovoltaic panels mounted on floating barges. Key advantages include mobility to avoid hazards or access remote areas, ability to generate power while in motion, and minimal environmental impact. Example barge designs ranging from 320x80 feet to over 1000 feet are presented along with estimated costs and power generation calculations for various locations off the coasts of the US.
Development of a Wireless Sensors Network powered by Energy Harvesting techni...Daniele Costarella
Develer Workshop:
A workshop focused on the principles and benefits of applying the Energy Harvesting techniques on Wireless Sensor Networks. The contents come from my Better Embedded 2013 talk.
SolarEdge Technologies provides next generation power conversion electronics that effectively remove the known system constraints across the photovoltaic energy space. Our Smart DC ASIC technology and active electronics enable cost efficiency and an increased production of clean, grid-ready energy. SolarEdge presents a unique, patent-pending distributed solar power harvesting system, comprised of the following elements:
SolarEdge Power Optimizer
The SolarEdge power optimizer is integrated into each module, replacing the traditional solar junction box. The SolarEdge power optimizers maximize energy throughput from each and every module through constant tracking of the Maximum Power Point individually, per module. Furthermore, the power optimizers monitor the performance of each module and communicate performance data to the SolarEdge monitoring portal for enhanced, cost-effective maintenance. When working with SolarEdge inverters, power optimizers automatically maintain a fixed string voltage, allowing optimal efficiency of the SolarEdge inverter and giving installers greater flexibility to design optimal PV systems.
The independent optimization (IndOP™) technology allows power optimizers to be installed without the need for additional interface hardware and to operate directly with any inverter.
Each power optimizer is equipped with the unique SafeDC™ feature which automatically shuts down modules' voltage whenever inverter or grid power are shut down.
SolarEdge PV Inverter
The SolarEdge Inverter is a highly reliable DC-AC PV inverter. Because MPPT and voltage management are handled separately for each module by the power optimizer, the inverter is only responsible for DC to AC inversion. Consequently, it is a less complicated, more reliable solar inverter. The fixed string voltage ensures operation at the highest efficiency at all times (>97% weighted efficiency) independent of string length and temperature.
SolarEdge PV Monitoring Portal
A web-based application provides module-level, string-level and system-wide monitoring. The solar monitoring software automatically provides alerts for accurate fault detection, localization and remote troubleshooting at the module level. Module performance is communicated across existing power lines, so no extra wiring is required.
The document discusses power generation through photovoltaic systems. It defines photovoltaics as using semiconductors to convert solar radiation directly into electricity. Photovoltaic systems use solar panels to convert sunlight into electricity for use. Large grid-connected photovoltaic systems can provide power for many customers. The document outlines photovoltaic applications, advantages like being pollution-free, and provides examples of large photovoltaic power stations around the world ranging from 1 MW to 200 MW in size.
Renewable energy sources include sunlight, geothermal heat, tides, wind and biomass. These sources generate clean energy without pollution or climate change. The main types are solar, wind, hydropower, biofuels and geothermal. Solar energy is captured through photovoltaic cells and solar thermal collectors. Wind energy is harnessed via wind turbines in wind farms, and hydropower uses the force of moving water in dams to generate electricity. Biomass and biofuels come from organic matter like plants, and geothermal taps heat from within the earth.
Emc compliance-for-renewable-resource-power-systemsIntertek CE
Renewable resource power systems have unique electromagnetic compatibility characteristics that must be considered. The document discusses various renewable energy sources including biomass, geothermal, hydroelectric, solar, tidal, wave, and wind power. For each energy source, it provides an overview and discusses relevant EMC considerations regarding emissions, susceptibility, and interactions with powerline and wireless communications. Large utility-scale renewable power plants are generally exempt from EMC standards, but internal control systems must meet industrial standards to ensure reliable operation.
Global Wind Energy development in a European R&D perspectiveWinterwind
Global wind energy development from a European perspective focuses on three main points:
1) Mainstream wind power development has primarily occurred in moderate climates, while cold climates, offshore development, and other remote areas remain underdeveloped areas of potential for wind energy.
2) As the wind power industry continues to grow and mature, technologies are scaling up in size and migrating offshore to capture larger markets.
3) Europe remains a leader in wind power development, with many countries surpassing 5% of electricity needs met by wind and Denmark reaching over 25% through supportive policies driving further growth and cost reductions in the industry.
This document discusses an intelligent home energy management system for an Indian residential home using a hybrid solar (PV)-grid/diesel generator (DG) power system controlled by a fuzzy adaptive control model. The system is designed to meet the daily energy demand of 60-70 kWh through optimal power sharing between the PV, grid, and DG sources. Simulation results show the fuzzy control strategy reduces grid/DG usage and results in average electricity cost savings of 50% per day through intelligent battery and load energy management.
The document discusses the advantages and design of a solar barge system for generating renewable energy from photovoltaic panels mounted on floating barges. Key advantages include mobility to avoid hazards or access remote areas, ability to generate power while in motion, and minimal environmental impact. Example barge designs ranging from 320x80 feet to over 1000 feet are presented along with estimated costs and power generation calculations for various locations off the coasts of the US.
Development of a Wireless Sensors Network powered by Energy Harvesting techni...Daniele Costarella
Develer Workshop:
A workshop focused on the principles and benefits of applying the Energy Harvesting techniques on Wireless Sensor Networks. The contents come from my Better Embedded 2013 talk.
SolarEdge Technologies provides next generation power conversion electronics that effectively remove the known system constraints across the photovoltaic energy space. Our Smart DC ASIC technology and active electronics enable cost efficiency and an increased production of clean, grid-ready energy. SolarEdge presents a unique, patent-pending distributed solar power harvesting system, comprised of the following elements:
SolarEdge Power Optimizer
The SolarEdge power optimizer is integrated into each module, replacing the traditional solar junction box. The SolarEdge power optimizers maximize energy throughput from each and every module through constant tracking of the Maximum Power Point individually, per module. Furthermore, the power optimizers monitor the performance of each module and communicate performance data to the SolarEdge monitoring portal for enhanced, cost-effective maintenance. When working with SolarEdge inverters, power optimizers automatically maintain a fixed string voltage, allowing optimal efficiency of the SolarEdge inverter and giving installers greater flexibility to design optimal PV systems.
The independent optimization (IndOP™) technology allows power optimizers to be installed without the need for additional interface hardware and to operate directly with any inverter.
Each power optimizer is equipped with the unique SafeDC™ feature which automatically shuts down modules' voltage whenever inverter or grid power are shut down.
SolarEdge PV Inverter
The SolarEdge Inverter is a highly reliable DC-AC PV inverter. Because MPPT and voltage management are handled separately for each module by the power optimizer, the inverter is only responsible for DC to AC inversion. Consequently, it is a less complicated, more reliable solar inverter. The fixed string voltage ensures operation at the highest efficiency at all times (>97% weighted efficiency) independent of string length and temperature.
SolarEdge PV Monitoring Portal
A web-based application provides module-level, string-level and system-wide monitoring. The solar monitoring software automatically provides alerts for accurate fault detection, localization and remote troubleshooting at the module level. Module performance is communicated across existing power lines, so no extra wiring is required.
Solar Energy: Technology and Perspectivesjoanna_oommen
Solar energy is an increasingly important renewable energy source, but presents challenges due to its intermittent availability. New technologies aim to bring the cost of solar power below $1 per watt by using thin film or printing processes. As solar power grows, smart grids can help integrate it into existing power infrastructure by enabling two-way energy transmission and distributed generation. The future of solar power depends on improved efficiency, energy storage solutions, hybrid generation systems, and optimal siting of power plants informed by geographic information systems.
Meeting future energy needs in an environmentally responsible way requires scientific breakthroughs to efficiently generate, store, transmit, and use large amounts of power. The document discusses several innovations that could help meet these needs in a sustainable way, including smart PV modules, nanomaterials for more efficient solar cells, floating wind turbines for offshore installations, larger offshore wind turbines, microbial fuel cells, and improvements in other renewable resource technologies like tidal and geothermal.
This document provides an overview and update on the Silicon Valley Photovoltaics Society (SVPVS) and discusses flexible photovoltaics (PV). It summarizes that SVPVS has been successful with monthly meetings of 100-150 people and many speakers covering areas related to PV. Currently, SVPVS is discussing becoming an IEEE chapter. It also discusses the motivation and challenges of flexible PV, providing examples of flexible solar cell applications and listings companies working on various flexible PV materials and technologies like crystalline silicon, CIGS, and organic PV.
New New Energy - LENR/Cold Fusion/"Free Energy", Fact vs FictionEd Beardsworth
Next Generation Energy - LENR/Cold Fusion/"Free Energy", Fact vs Fiction
The quest, the goal, the holy grail... a source of energy to power modern society which is cheap, clean and inexhaustible. We know a great deal about the sources we have, and why they aren't good enough. Fossil fuel, the sun, geothermal, nuclear, biomass, wind, oceans, etc. And mankind looks farther:
In the realm of "known" or "generally accepted" science, we look for breakthroughs, either to improve on existing sources, or to make practical concepts we know about but can't yet implement, i.e. fusion.
In the realm of "not accepted" science, a perhaps surprisingly large number of people are hard at work to uncover phenomena that are "known" to be impossible. They are scorned, dismissed, ignored and banished by mainstream science, and with a couple of notable exceptions (e.g. cold fusion), completely ignored by the popular and science press.
"Accepted Science"
New Nuclear Fission
A quick survey: small modular reactors (SMR), alternate reactor concepts and fuel cycles.
Fusion
-- the mainstream programs with huge devices (ITER, NEF) unlikely to deliver, ever.
-- alternate approaches - smaller systems may have a chance--some are venture backed
-- aneutronic. uses different "fuels". much less radiation, but much harder to do (higher energy)
"Not Accepted Science"
•"Free Energy" • "Over unity" • "vacuum energy" • "Magnetic motors" Most of it can be dismissed, but perhaps not all. More than a few established and well trained scientists take these things quite seriously, in spite of career risks. Including, by the way, "cold fusion", aka LENR (low energy nuclear reactions).. What will we know in 50 years that we don't know now? Imagine someone describing a nuclear power plant in 1930)
The document provides an overview of photovoltaic (PV) plants, which convert solar energy directly into electrical energy using photovoltaic cells. Key points include:
- PV plants have advantages like distributed generation, no emissions, reliability, and modularity. However, initial costs are high and power generation depends on variable solar energy.
- The main components of a PV plant are PV panels/modules, support frames, power conditioning systems, optional storage, and electrical equipment.
- PV cells use semiconductors like silicon to generate electricity from sunlight via the photovoltaic effect. Cells are combined into modules and arrays to produce more power.
- Performance depends on factors like solar radiation
This document defines different types of energy and energy sources. It discusses renewable energy sources like solar, wind, hydroelectric, and biomass as well as non-renewable sources like coal, petroleum, and natural gas. It also describes different types of power stations including solar, nuclear, thermal, wind, and hydroelectric power stations.
This document discusses emotion scripts in organizations from a multi-level perspective. It defines emotion scripts as an individual's knowledge about typical emotion episodes, consisting of antecedents, physiological reactions, expressions/behaviors, and outcomes. Emotion scripts can vary in strength and origin. The model proposes that emotion scripts emerge from five levels - biological, cognitive, social, relational, and organizational. Biological scripts provide a basic map, while organizational scripts involve the most complexity and specificity due to multiple relationships and organizational norms. Understanding emotion scripts in organizations requires comprehending how scripts are shaped at each preceding level.
This document is a dissertation submitted by Naveen Chandani to Swansea Metropolitan University exploring the competitive advantage of Bupa Care Homes and views of older people in choosing care homes. It begins with acknowledgments and then provides an abstract summarizing the purpose, literature review, methodology, and key findings. The dissertation examines Bupa's competitive strategies and determines factors important to older people when selecting a care home, such as care services, activities, and safety. It utilizes interviews, questionnaires, and data analysis models to understand Bupa's differentiation focus in the care home market.
You wonder how an art piece or a sculpture is created? Here is a step by step guide on how to get there. This is a standard technique that has been used for centuries.
IRJET- Transmission of Ac Power from Offshore to Onshore by using Low Frequen...IRJET Journal
This document discusses the transmission of AC power from offshore wind farms to onshore grids using low frequency AC transmission. Some key points:
1) Offshore wind farms generate power at medium voltage DC which is converted to low frequency AC (e.g. 20Hz) using cycloconverters for transmission through undersea cables.
2) At the receiving end, the low frequency AC is converted back to standard grid frequency AC using phase shift transformers before connecting to the onshore grid.
3) Low frequency AC transmission allows use of the same undersea cable designs as used for standard frequency but increases transmission capacity and distance. It provides an alternative to HVAC and HVDC transmission for medium length offshore connections.
Ocean wave energy and its uses in generating electricityDr. Ved Nath Jha
This document discusses ocean wave energy and its potential uses and challenges. It describes how ocean waves are a renewable source of energy generated by wind. While wave energy could help meet electricity demand, there are technological and environmental challenges to overcome. These include efficiently converting wave motion to electricity, designing structures that can withstand storms and corrosion, and reducing costs. Further research is needed to better understand the feasibility and impacts of wave energy technologies for specific locations like remote Alaskan communities. Overall, the document examines the viability and opportunities of harnessing ocean wave power, but notes the development challenges that must still be addressed.
Review of journal articles of wave energy converters and their impact on powe...Nuwan Dinusha
Ocean waves are a huge, large untapped energy source, which is a considerable renewable energy source that can generate the useable energy forms. This review introduce the general status of wave energy and evaluate the device types that represent current wave energy converter (WEC) technology which defer according to the location, type and the modes of operation, power take off (PTO) methods Benefits and the challenges that have to face during the ocean wave power generation. Ocean wave energy power can contribute to the Sri Lanka power crisis. Wave climate and geographical construction around the country and best places to establish the wave energy power plant in the Sri Lanka and available technologies. Social and environmental impact of wave power plant.
IRJET- Design of a New Passive Energy Dissipation System for Earthquake R...IRJET Journal
This document discusses the design of a new passive energy dissipation system for earthquake-resistant structures. It begins with an abstract that introduces passive control systems as an effective and inexpensive way to mitigate earthquake risks. It then discusses different types of passive energy dissipation systems, including metallic dampers and friction dampers. The document provides details on hysteretic systems that dissipate energy independently of the loading rate, such as metallic and friction dampers. It also covers viscoelastic systems that dissipate energy in a rate-dependent manner, such as viscoelastic solid and fluid dampers. The goal is to develop innovative earthquake-resistant systems to improve seismic performance while keeping costs reasonable.
A wave-to-wire model of ocean wave energy conversion system using MATLAB/Simu...Jakir Hossain
Renewable energy sources, unlike the conventional combustible fuels, are naturally distributed and extensively available in a boundless manner all over the world in different forms. Here, in this paper, authors elucidate the scopes and opportunities of the ocean wave to develop a low-cost, environmental friendly, and sustainable electrical power generation system. At the present time most technological modernizations aimed at exploiting such resources are at early stage of development, with only a handful of devices close to be at the commercial demonstration stage. None of them, though, operates converting the wave energy contents at its very origin: the orbital motion of water particles right below the ocean surface. The Sea spoon device catches the kinetic energy of ocean waves with favorable conversion proficiency, according to specific "wave-motion climate". In this letter, authors illustrate a possible methodology of converting this naturally exorbitant energy with efficient conversion methodology and simulating the conversion environment with MATLAB/Simulink platform.
The document discusses wave energy and provides information on the following key points:
1. Waves are a concentrated form of solar energy generated by wind blowing across the sea surface. The energy within a wave is proportional to the square of its height.
2. Regions with the most potential for wave power include western coasts of Europe, northern Canada, southern Africa, Australasia, and northwestern US coasts.
3. The objectives of the wave energy device described are to provide a reliable, economical, and efficient device that can sustain extreme ocean conditions and generate electricity at full capacity without shutdowns.
Solar Energy: Technology and Perspectivesjoanna_oommen
Solar energy is an increasingly important renewable energy source, but presents challenges due to its intermittent availability. New technologies aim to bring the cost of solar power below $1 per watt by using thin film or printing processes. As solar power grows, smart grids can help integrate it into existing power infrastructure by enabling two-way energy transmission and distributed generation. The future of solar power depends on improved efficiency, energy storage solutions, hybrid generation systems, and optimal siting of power plants informed by geographic information systems.
Meeting future energy needs in an environmentally responsible way requires scientific breakthroughs to efficiently generate, store, transmit, and use large amounts of power. The document discusses several innovations that could help meet these needs in a sustainable way, including smart PV modules, nanomaterials for more efficient solar cells, floating wind turbines for offshore installations, larger offshore wind turbines, microbial fuel cells, and improvements in other renewable resource technologies like tidal and geothermal.
This document provides an overview and update on the Silicon Valley Photovoltaics Society (SVPVS) and discusses flexible photovoltaics (PV). It summarizes that SVPVS has been successful with monthly meetings of 100-150 people and many speakers covering areas related to PV. Currently, SVPVS is discussing becoming an IEEE chapter. It also discusses the motivation and challenges of flexible PV, providing examples of flexible solar cell applications and listings companies working on various flexible PV materials and technologies like crystalline silicon, CIGS, and organic PV.
New New Energy - LENR/Cold Fusion/"Free Energy", Fact vs FictionEd Beardsworth
Next Generation Energy - LENR/Cold Fusion/"Free Energy", Fact vs Fiction
The quest, the goal, the holy grail... a source of energy to power modern society which is cheap, clean and inexhaustible. We know a great deal about the sources we have, and why they aren't good enough. Fossil fuel, the sun, geothermal, nuclear, biomass, wind, oceans, etc. And mankind looks farther:
In the realm of "known" or "generally accepted" science, we look for breakthroughs, either to improve on existing sources, or to make practical concepts we know about but can't yet implement, i.e. fusion.
In the realm of "not accepted" science, a perhaps surprisingly large number of people are hard at work to uncover phenomena that are "known" to be impossible. They are scorned, dismissed, ignored and banished by mainstream science, and with a couple of notable exceptions (e.g. cold fusion), completely ignored by the popular and science press.
"Accepted Science"
New Nuclear Fission
A quick survey: small modular reactors (SMR), alternate reactor concepts and fuel cycles.
Fusion
-- the mainstream programs with huge devices (ITER, NEF) unlikely to deliver, ever.
-- alternate approaches - smaller systems may have a chance--some are venture backed
-- aneutronic. uses different "fuels". much less radiation, but much harder to do (higher energy)
"Not Accepted Science"
•"Free Energy" • "Over unity" • "vacuum energy" • "Magnetic motors" Most of it can be dismissed, but perhaps not all. More than a few established and well trained scientists take these things quite seriously, in spite of career risks. Including, by the way, "cold fusion", aka LENR (low energy nuclear reactions).. What will we know in 50 years that we don't know now? Imagine someone describing a nuclear power plant in 1930)
The document provides an overview of photovoltaic (PV) plants, which convert solar energy directly into electrical energy using photovoltaic cells. Key points include:
- PV plants have advantages like distributed generation, no emissions, reliability, and modularity. However, initial costs are high and power generation depends on variable solar energy.
- The main components of a PV plant are PV panels/modules, support frames, power conditioning systems, optional storage, and electrical equipment.
- PV cells use semiconductors like silicon to generate electricity from sunlight via the photovoltaic effect. Cells are combined into modules and arrays to produce more power.
- Performance depends on factors like solar radiation
This document defines different types of energy and energy sources. It discusses renewable energy sources like solar, wind, hydroelectric, and biomass as well as non-renewable sources like coal, petroleum, and natural gas. It also describes different types of power stations including solar, nuclear, thermal, wind, and hydroelectric power stations.
This document discusses emotion scripts in organizations from a multi-level perspective. It defines emotion scripts as an individual's knowledge about typical emotion episodes, consisting of antecedents, physiological reactions, expressions/behaviors, and outcomes. Emotion scripts can vary in strength and origin. The model proposes that emotion scripts emerge from five levels - biological, cognitive, social, relational, and organizational. Biological scripts provide a basic map, while organizational scripts involve the most complexity and specificity due to multiple relationships and organizational norms. Understanding emotion scripts in organizations requires comprehending how scripts are shaped at each preceding level.
This document is a dissertation submitted by Naveen Chandani to Swansea Metropolitan University exploring the competitive advantage of Bupa Care Homes and views of older people in choosing care homes. It begins with acknowledgments and then provides an abstract summarizing the purpose, literature review, methodology, and key findings. The dissertation examines Bupa's competitive strategies and determines factors important to older people when selecting a care home, such as care services, activities, and safety. It utilizes interviews, questionnaires, and data analysis models to understand Bupa's differentiation focus in the care home market.
You wonder how an art piece or a sculpture is created? Here is a step by step guide on how to get there. This is a standard technique that has been used for centuries.
IRJET- Transmission of Ac Power from Offshore to Onshore by using Low Frequen...IRJET Journal
This document discusses the transmission of AC power from offshore wind farms to onshore grids using low frequency AC transmission. Some key points:
1) Offshore wind farms generate power at medium voltage DC which is converted to low frequency AC (e.g. 20Hz) using cycloconverters for transmission through undersea cables.
2) At the receiving end, the low frequency AC is converted back to standard grid frequency AC using phase shift transformers before connecting to the onshore grid.
3) Low frequency AC transmission allows use of the same undersea cable designs as used for standard frequency but increases transmission capacity and distance. It provides an alternative to HVAC and HVDC transmission for medium length offshore connections.
Ocean wave energy and its uses in generating electricityDr. Ved Nath Jha
This document discusses ocean wave energy and its potential uses and challenges. It describes how ocean waves are a renewable source of energy generated by wind. While wave energy could help meet electricity demand, there are technological and environmental challenges to overcome. These include efficiently converting wave motion to electricity, designing structures that can withstand storms and corrosion, and reducing costs. Further research is needed to better understand the feasibility and impacts of wave energy technologies for specific locations like remote Alaskan communities. Overall, the document examines the viability and opportunities of harnessing ocean wave power, but notes the development challenges that must still be addressed.
Review of journal articles of wave energy converters and their impact on powe...Nuwan Dinusha
Ocean waves are a huge, large untapped energy source, which is a considerable renewable energy source that can generate the useable energy forms. This review introduce the general status of wave energy and evaluate the device types that represent current wave energy converter (WEC) technology which defer according to the location, type and the modes of operation, power take off (PTO) methods Benefits and the challenges that have to face during the ocean wave power generation. Ocean wave energy power can contribute to the Sri Lanka power crisis. Wave climate and geographical construction around the country and best places to establish the wave energy power plant in the Sri Lanka and available technologies. Social and environmental impact of wave power plant.
IRJET- Design of a New Passive Energy Dissipation System for Earthquake R...IRJET Journal
This document discusses the design of a new passive energy dissipation system for earthquake-resistant structures. It begins with an abstract that introduces passive control systems as an effective and inexpensive way to mitigate earthquake risks. It then discusses different types of passive energy dissipation systems, including metallic dampers and friction dampers. The document provides details on hysteretic systems that dissipate energy independently of the loading rate, such as metallic and friction dampers. It also covers viscoelastic systems that dissipate energy in a rate-dependent manner, such as viscoelastic solid and fluid dampers. The goal is to develop innovative earthquake-resistant systems to improve seismic performance while keeping costs reasonable.
A wave-to-wire model of ocean wave energy conversion system using MATLAB/Simu...Jakir Hossain
Renewable energy sources, unlike the conventional combustible fuels, are naturally distributed and extensively available in a boundless manner all over the world in different forms. Here, in this paper, authors elucidate the scopes and opportunities of the ocean wave to develop a low-cost, environmental friendly, and sustainable electrical power generation system. At the present time most technological modernizations aimed at exploiting such resources are at early stage of development, with only a handful of devices close to be at the commercial demonstration stage. None of them, though, operates converting the wave energy contents at its very origin: the orbital motion of water particles right below the ocean surface. The Sea spoon device catches the kinetic energy of ocean waves with favorable conversion proficiency, according to specific "wave-motion climate". In this letter, authors illustrate a possible methodology of converting this naturally exorbitant energy with efficient conversion methodology and simulating the conversion environment with MATLAB/Simulink platform.
The document discusses wave energy and provides information on the following key points:
1. Waves are a concentrated form of solar energy generated by wind blowing across the sea surface. The energy within a wave is proportional to the square of its height.
2. Regions with the most potential for wave power include western coasts of Europe, northern Canada, southern Africa, Australasia, and northwestern US coasts.
3. The objectives of the wave energy device described are to provide a reliable, economical, and efficient device that can sustain extreme ocean conditions and generate electricity at full capacity without shutdowns.
Trends in the geometric size and rated power capacity of offshore wind turbines, the main components of an OWT system, encompassing a typical monopile foundation, the substructure, transition piece, the tower, rotor blades and nacelle (hub). Modern OWTs are installed with either pitch-regulated blades or variable rotational speed systems in order to allow optimisation of the power production over a wide range of prevailing wind speeds. The rotational speed of the main rotor shaft is typically between about 10 and 20 rp. Key electromechanical components of the wind turbine, including the gearbox and the generator (Roberts et al.,2007). The gearbox may cause efficiency losses for the wind turbine and is the particular source of the noise. Recent developments in the design of permanent magnet generators have made it possible to construct some types of wind turbines without the requirement for a gearbox. In this case, the rotor is mainly connected directly to a low-speed multi-pole generator that rotates at the same speed, termed the direct-drive unit. Removing the gearbox mainly removes one of the key components requiring more maintenance, and that is mainly prone to failure. This simplification of the mechanical part allows reductions in size and the mass of the nacelle (Gilling, 2009).
7th sem final presentation solar tracking systemDebajyoti Chanda
This document presents a project on a solar tracking system developed by a group of students. It discusses how solar tracking can increase solar panel output by ensuring the panels always face the sun. It includes block diagrams of the system design using a microcontroller and sensors to control stepper motors and adjust the panel orientation. The document also discusses the concept design, Pro-E CAD model, design evaluation, and applications of the solar tracking system.
Floating Power Inc. plans to commercialize and manufacture a floating power plant technology developed by Floating Power Plant Inc. that generates electricity from both waves and wind using a platform called Poseidon. The Poseidon uses wave-interacting floats to produce hydraulic power from waves and mounts wind turbines atop the mostly submerged platform to also capture energy from wind. A prototype called Poseidon 37 has demonstrated the ability to produce enough electricity to power 15,000 homes from a single platform. Floating Power Inc. intends to have an initial test module working with Oregon State University and plans to construct a larger 110-meter prototype in Oregon between 2014-2015.
The Rion-Antirion Bridge connects Greece across a strait prone to earthquakes. Its 2,252 meter long deck is suspended from four pylons by stay cables. To protect the bridge from seismic events, innovative energy dissipation systems were used, including viscous dampers and fuse restraints. Extensive testing of full-scale prototypes confirmed the design assumptions and behavior of the seismic protection system. The dampers and restraints limit deck movement during earthquakes while dissipating seismic energy. The fuse restraints fail under strong quakes, allowing the dampers to control deck oscillations. Similar systems isolate the approach viaducts from ground motions.
This document discusses tidal energy conversion and provides an overview of tidal power generation in Bangladesh. It describes four main methods of tidal power generation: tidal stream generators, tidal barrages, dynamic tidal power, and tidal lagoons. It also discusses the renewability, security, and efficiency of tidal power. Specifically for Bangladesh, it examines the potential for tidal power generation at Sandwip Island, where infrastructure like flood control barrages and sluice gates already exist and could be utilized for power generation through simple technologies like undershot paddlewheels.
Running head OYSTER WAVE POWER GENERATOR .docxtoltonkendal
Running head: OYSTER WAVE POWER GENERATOR 4
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Oyster Wave Power Generators
Introduction
In reaction to the requirement to discover supplementary agents of renewable fuel to contend climate adjustment, make sure of domiciliary fuel safety along with advance fresh industries a big society of wave fuel surveyors and mercantile machine advancers has arisen in contemporary years, in pursuance of a substantial amount of various technologies for the regeneration of wave fuel. The concentration has mostly been put on machines located seaward, in greater waters, because of the anticipated gain of the greater gross fuel degrees experienced there. (Karimirad, 2014). Nonetheless, there are several conventionally omitted gains related to the near shore ecology that make it a desirable weather for an effectively schemed wave fuel generator.
Aquamarine Energy Ltd was created in the year 2005 to create Oyster, a device that interplays appropriately with the domineering flow forces experienced in the near shore current weather at intensities of 10 to 15 m. The Oyster theory uses a broad floatable basal-hinged fold that totally breaks in the aqua row from on top of the covering to the sea bottom. The current speed on the oscillator, from the swelling activity of currents, moves hydraulic generators that compel aqua and distend it to coastland via water passages. The inshore hydroelectric machinery changes the hydraulic thrust to dynamic fuel through a Pelton disk, which moves a dynamic alternator. The aqua goes back to the machine in a sealed ring through an additional low thrust reversion water passage.
Aquamarine energy conveniently put up a 315kW complete range proof of theory machinery at EMEC in the year 2009. After conclusive conjunction and induction, initial energy was attained in the same year in the month of October. The plan titled Oyster 1, has been bringing forth invaluable achievement and charging information which will be the concentration of a coming publishing.
A comprehensive collection of tank examinations along with statistical is being performed so as to make better the coming conception of Oyster machinery. This fresh model comprises of several performance advancements which will put the electronic components in near scope of a commercial project. Oyster two is made up of triple next life seaward current seizure units with complete generation ability in surplus of 2 MW. A prosperous affirmation plan at this scale is needed to show the proof for the electronic components decreasing technical along with functional threats connected to the extensive dispositions to a degree which is commercially appealing to established venture capitalists. (Lynn, 2014). Oyster 2 is presently in the definite model stage and was put up at EMEC in the year 2011.
The Oyster current energy generator
Fundame ...
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1. The presentation discusses wave energy converter technology and reviews a specific article on the topic.
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1. Complex of combined production of electricity with the
features to protect the coastline from the storm impact
WWW.GESPECSTROY.SPB.RU
2. Pure energy
Water desalination
Protection from the
storms
Utilization of sewage
Independent energy balance
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3. Project team
Vladimir Egurnov - project manager, general director of SPA Gydroenergospetsstroy;
Vladimir Kotunov - president of SPA Erga, Kaluga, manager of electrical works, founder of SPA Gydroenergospetsstroy, candidate of technical
sciences ;
Viktor Elistratov - research project manager, doctor of technical sciences, professor, honored power engineer of the Russian Federation, head
of the chair “Renewable energy sources and hydropower” of the Saint-Petersburg’s State Polytechnic University;
Viktor Anosov - manager of the research and development works, head of the laboratory in the Central Research Institute named after
academic Krylov, candidate of technical scences;
Alexander Melnichenko - architect of the project, candidate of architecture, member of the Russian Union of architects;
Stanislav Ivanov - construction designer;
Yuriy Bagdasarov - coordinator of the scientific and technical cooperation and intellectual property, Moscow
Evgenia Raevskaya – adviser in foreign economic activities;
Anatoliy Rockfaiger - consultant of the project’s international development - Energy & Materials Circle, Inc., NY, NY; President, USA
Muhtar Anteev - vice director in legal affairs, member of the international Bar Association;
Sergey Afanasyev - technical director;
Evgeniy Vasichev - constructor of electrical machines, Kaluga;
Sergey Lapshin - chief engineer, Kaluga;
Stanislav Kotunov -general director of SPA Erga, chief manager, founder of SPA Gydroenergospetsstroy.
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4. Project description
Project structure
Complex of combined production of electricity with the features to protect the coastline from the storm impact.
Wave energy damper Building system Systems of conversion and Research, development work and engineering
distribution of the energy and design
net balance
Supporting waffle-crete log booms for the
capital hydraulic structures and object’s
placement on the water Flowing unsupported
damping structures Installation systems on
deep water
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5. Wave energy damper
A system of the active coast’s protection, coastal and hydropower facilities protecting from the storm impact, that creates the interference
of incident and reflected waves and converts destructive wave energy into the useful work. System can be placed on the existing and the
newly created coastal facilities. With its help it is possible to protect the coast line from the storm impact without capital hydropower
structures.
Unite two technologies : technology of creating the protective structures and
technology of converting destructive wave energy into the useful work
(electricity).
Has the unique automatic management system that calculates the wave impact's
power, operatively changes physical parameters of working elements, increases
or reduces damping and also redistributes electrical load. This system equally
works with different wave parameters.
All the developments are protected by the portfolio with 4 patents for
the invention of the Russian Federation, 2 patents for the useful
model, 2 international applications of PCT were submitted and
realized.
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6. The main advantages of the wave energy damper in
comparison with analogues
None of the known prototypes is not a fully protective complex, while the wave
energy damper unites two technologies: technology of creating the protective
structures and technology of converting destructive wave energy into the useful
work.
- Wave energy station that consists of the group of dampers allows reducing the
building cost of the protective structures in 6 – 10 times and also converting
about 45 % of the initial wave energy into the useful work; the total wave energy
can be reduce in 7-10 times. Thus the wave energy almost completely looses its
destructive potential.
- The energy damping device has an automatic management system and
depending on the wave impact’s power and angle of approach of waves to the
shoreline , operatively changes physical parameters : displacement, mass; and
also distributes the load on the generator that allows working on the waves of
different heights and frequencies of the period reliably and with high efficiency
- The wave energy damper is much more reliable than analogues and allows
emergency and maintenance works in storm conditions because it has the system
of the radical reduction of the wave loads above the estimated.
- The working device has no hard connection with the ramp; in contrast to the
known analogues has no limits of moving therefore it works equally with the
different heights of waves and changes of the water level in case the ebb – and-
float.
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7. Competitive analysis of the wave power stations.
-Pelamis -Wave Star -Gydroenergospetsstroy (Wes)
System of the Annual output of PELAMIS using 40 % of installed power can
Emergency Protection Restrictions on radical Prospects of be about 316 000 кW/ h. The payback period is 10 years in
the wave reduction of commercial the purchase price of energy - $ 0.12 .
service in a functions Length (m) Weight P (kW) Cost ($)
impacts the wave use Annual output of Wes (consist of 15 dampers) on the Black
storm from storms (tons)
loads sea coast (area with the most minimal rates of energy
No protection
potential) is 900 000 кW/ h.
from the storms, Has the
Installed in areas
Besides, the area that hosts the working body of PELAMIS , is
presence of 32 000 м2 , the area to place the block (15 wave dampers) is
where the
state
no no 180 1300 750 3 000 000 maximum wave no 2700 м2
subsidies for
does not exceed
the calculated. green energy
Works up to 3m
waves, then goes
into emergency
mode, protection
includes:
yes no 35 1000 80 10 000 000 unloading no Doesn’t have
ballast, working
bodies pulled
from the water.
Has.
Major, as a
yes 36 (3
complex
reduce the dampers) 180 120(15) 900(15) 824 000(15) technology,
yes wave energy (15) 24(3) 180(3) 162 000(3) no yes defense and
85-100% power
generation.
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8. Economic parameters and the field of utilization of the wave
energy damper.
1. The newly created hydro power facilities by the technology of the supporting waffle-crete log booms.
Creation of the bank protection structures using the wave energy damper and technology of the supporting waffle-crete log booms allows reduction of the
building cost in 8 – 10 times. Using the traditional building methods 1 running meter of facilities with depth 7-10 meters and waves height 7.5 meters
costs about 300 000$. To build with our technology you will need 36 000$. At the same time 45 % of the initial wave energy converts into the useful
work. Preliminary calculations show that it’s possible to get about 6 -10 millions kW/h of electricity per 1 year from the Black Sea coast.
2. Protection of existing hydraulic structures.
Using the wave power damper on existing hydraulic structures( (wave breakwaters, enclosing dams) allows you to continue the lifetime of such structures, to
reduce the cost of repair and reconstruction is 1.5-2 times, and also to sell produced “green” energy on the local market, getting 1-2 millions of dollars per
year from 1 km of the coastal structures.
3.Protection of the coastline without capital hydraulic structures.
The wave energy station, situated along the coast line not so far from the bank, without any capital hydraulic structures with its own support allows reduction
the wave energy in 6-10 times and at the same time converting about 40 % of the initial wave energy into the useful work. The scheme allows to limit the
adverse impact of storms on the coastline, thereby minimizing the shore protection works that are expensive and not good from an environmental point
of view.
If compare the protection and repairing works on the beaches after storms and the placement of the wave energy damper you will see almost no difference.
But money, invested into it, are irrevocable; while the protective lines that consist of wave energy dampers make a profit by selling "clean" energy.
The cost value of electricity produced by the wave power station can be less than 0.01$.
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9. Technical and economic parameters
of the wave power station
Projected technical and economic parameters of the wave power station composed of the group of dampers, control and power distribution unit and the
system of the radical reduction of the wave loads over the calculated values.
Current location: Black Sea, Krasnodar region,
square№ 17747 , coordinates : latitude - 44.50, longitude – 37.50
- Number of the working elements on 1200 meters of the protective line- 100 pcs
- Sea depth in a lace of installation - 8-10 meters
- Installed capacity - 6000 кW
- Capacity factor - 0.13
- Annual yield - 7 200 000 кW/h
- Using during operation the environmentally dangerous
components (engine oils, benzenes, antifreeze) - not used
- The fuel component in the value of production - no
- Cost value of produced electricity - 0.01 $ / кW/h
- Cost factor by 1 kW of installed capacity - 920 $ .
- Cost of the complex with the control system - 5 500 000 $
- Cost of electricity produced per year - 700 000 $
- Payback period of the energy component - 3,5 years
- Efficiency of reduction of the wave action’s energy - 85 %
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10. Building system
Technology of construction of the protective bearing hydraulic structures and the system of supports for placing the wave energy dampers.
Capital hydraulic structures , supporting facilities, main piers Structures for mounting, block of sections of the wave energy Mounting supporting structures for placing the
using the waffle-crete log booms and resistant mortise piles. dampers without capital hydraulic structures. wave energy dampers on the deep water.
-Reliable protection, 100% reduction of the wave Cheap and fast mounting; Allows to place energy complexes on the
impact; Full flowage of the breaking water space; deep water with the complicated bottom
-Constructions are protective, bearing and Create passageways for the movement of ice; topography.
functional. There are technological equipment,
storage tanks for desalinated water and
wastewater to be disposed inside the booms.
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11. Competitive advantages of the project
- Dual-use technology: protection from the wave impact and power generation;
- The energy damping device has an automatic management system and depending on the wave impact’s power and angle of approach of waves to the
shoreline , operatively changes physical parameters : displacement, mass; and also distributes the load on the generator that allows working on the waves of
different heights and frequencies of the period reliably and with high efficiency
- The working device has no hard connection with the ramp;
- Reduces the wave impact’s energy by 70-80%;
- Possibility of application in areas with the ice cover in winter
- Has the system of the radical reduction of the wave loads over the calculated that increases reliability of the system, allows emergency and maintenance
works in storm conditions because it has the system of the radical reduction of the wave loads above the estimated.
- The project meets the high environmental standards. All three technologies of the placement and mounting of the complex and the wave energy damper
are not capital building relative to the bottom of the coastal shelf. Protective dams formed by this technology provide flowage of the breaking water space,
pass season’s streams and do not cause silting of artificial newly created harbors, ensure migration of coastal bio resources.
-Do not have limitation on the storm’s power. (competitors goes into emergency mode.
- The combined energy conversion scheme with an independent energy balance;
-A building system with different mounting conditions;
- Allows to create protected energy-independent areas for recreational and economic activities.
Structural features of the wave damper and the control system alow to build a special algorithm of damping of the wave’s impact not only for each working
element of the station but across the width of the wavefront along the line of the Wave power station’s placement. That allows to exclude the deformation
of the wave beam when waves are aproaching the coastline; to avoid the concentration of the wave uplift on separate bank’s parts, coastal and protected
constructions; to prevent forming of explosive and alluvial streams and harbor oscillations in areas where Wave pover stations are situated.
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12. Multifunctional marine complex
- Predesign works, calculation of the energy potential of renewable energy sources and the preliminary TEO are conducted
relatively to the real coastal areas under the contract with the company which is interested in a practical project realization.
- The conception and architectural and planning solution of all parts of the project are developed.
The coastal Hydro power station with protective functions of the shore is a key segment of the project it doesn’t only
protect it also allows to provide the energy and communications to the projected complex without using the engineering
networks situated on the shore.
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13. Market of the global ocean energy and
and the development strategy of technologies.
An inexhaustible source and a huge market.
1sq.m. – solar power – 100 Watt.
1sq.m. (wind speed - 10м/s) – wind power– 600 Watt
1 long m. – ocean energy– from 10 000 W to 75 000 W
The world potential of the wave and tidal power engineering is 450-600 mlrd. $
¾ of it - technologies connected with the wave power facilities.
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14. Market of the global ocean energy and
the development strategy of technologies
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15. Market of the global ocean energy and
and the development strategy of technologies
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16. Market of the global ocean energy and
and the development strategy of technologies
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17. Research and development works
Since 2006 SPA Gydroenergospetsstroy conducts works to develop the experimental equipment and to create the technologies of investigation of interaction
between waves , hydraulic facilities and working elements of marine power stations.
More than 200 test’s cycles were conducted of three conceptions of the
Wave power plant. 2 Scientific and technical report were prepared.
Real wave energy :
H(mm)- 6000 ; λ(m)-17 ƒ(Hz)-0,30; E(J.), - 500 930;
P(W)-75 518,13 – Wattage on 1 long meter of the wave front.
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18. Partners
Krylov Shipbuilding Research Institute www.ksri.ru
“Architectural Workshop A. Melnichenko” and “Grandterier - Atrium” St. Petersburg, Russia.
www.melnichenko.spb.ru
Research and Development Enterprise “Erga”, Kaluga www.erga.ru
Industry group “ Stroycomplekt”, Saint-Petersburg, Russia www.skpg.ru
Department VIEG (renewable energy and hydropower) St. Petersburg Politech University.
www.vieg.cef.spbstu.ru
ZAO "Technology Transfer Center" in Moscow www.rusttc.ru
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