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.
IMPULSE CROSS FLOW TURBINE WITH FOUR NOZZLES AS PRIME MOVER OF ELECTRIC GENER...IAEME Publication
Water energy which is very good to be used as a source of electrical energy in underdeveloped areas has not been reached by electricity. The purpose of this research is to utilize water energy for the generation of electrical energy is to choose a four nozzle cross flow water turbine. The method used is to test a Cross Flow turbine with four nozzles as a micro-scale hydroelectric power generator. The results showed that a cross flow turbine with four nozzles is very good as a permanent magnet Direct Current generator that can work at a flow that is not too high. At a water discharge of 4.2x 10-3 m 3 /s and an outer diameter of 200 mm cross flow turbine with 24 blades, it can produce Cross Flow Turbine power with four nozzles is 3.251 Watt and generator power is 1.528 Watt
analysis of magneto hydrodynamic propulsions by using various materialsRoja Rani
The basic principle of magneto-hydro dynamics is that a purely electrical input can be used to produced a mechanical output using high current through a dielectric material in the presence of a magnetic field.
Essentially, each charge feels a force imparted upon it to move based on the right hand rule.
Below is the equation that will determine the force that will be out put for the given inputs. This force is known as the Lorentz force and the equation known as Lorentz law F = I * LxB
C. d. engin, a. yesildirek, designing and modeling of a point absorber wave e...Dogukan Engin
In this project, the primary aim is to produce optimum parameters for electric power generation via renewable sea wave energy for the Turkish sea coastlines. The modular system is composed of wave actuation mechanism, hydraulic system and generator. This system is used to model and compute the optimal parameters but also monitor the Turkish coastline characteristics. A hydrodynamic model based optimum PTO drives the generator that are further connected to other similar units to construct a wave energy farm. A testbench is created to mimic the operation of wave actuation in lab environment. This unit drives hydraulic system that can generate mechanical power to excite a generator shaft. Optimal wave actuation mechanism parameters suitable to our coastlines have been calculated. With these aims, the system designed on the basis of the mechanism that based on point absorber buoy. Initial design and hydrodynamic simulations in MATLAB/Simulink is given.
IMPULSE CROSS FLOW TURBINE WITH FOUR NOZZLES AS PRIME MOVER OF ELECTRIC GENER...IAEME Publication
Water energy which is very good to be used as a source of electrical energy in underdeveloped areas has not been reached by electricity. The purpose of this research is to utilize water energy for the generation of electrical energy is to choose a four nozzle cross flow water turbine. The method used is to test a Cross Flow turbine with four nozzles as a micro-scale hydroelectric power generator. The results showed that a cross flow turbine with four nozzles is very good as a permanent magnet Direct Current generator that can work at a flow that is not too high. At a water discharge of 4.2x 10-3 m 3 /s and an outer diameter of 200 mm cross flow turbine with 24 blades, it can produce Cross Flow Turbine power with four nozzles is 3.251 Watt and generator power is 1.528 Watt
analysis of magneto hydrodynamic propulsions by using various materialsRoja Rani
The basic principle of magneto-hydro dynamics is that a purely electrical input can be used to produced a mechanical output using high current through a dielectric material in the presence of a magnetic field.
Essentially, each charge feels a force imparted upon it to move based on the right hand rule.
Below is the equation that will determine the force that will be out put for the given inputs. This force is known as the Lorentz force and the equation known as Lorentz law F = I * LxB
C. d. engin, a. yesildirek, designing and modeling of a point absorber wave e...Dogukan Engin
In this project, the primary aim is to produce optimum parameters for electric power generation via renewable sea wave energy for the Turkish sea coastlines. The modular system is composed of wave actuation mechanism, hydraulic system and generator. This system is used to model and compute the optimal parameters but also monitor the Turkish coastline characteristics. A hydrodynamic model based optimum PTO drives the generator that are further connected to other similar units to construct a wave energy farm. A testbench is created to mimic the operation of wave actuation in lab environment. This unit drives hydraulic system that can generate mechanical power to excite a generator shaft. Optimal wave actuation mechanism parameters suitable to our coastlines have been calculated. With these aims, the system designed on the basis of the mechanism that based on point absorber buoy. Initial design and hydrodynamic simulations in MATLAB/Simulink is given.
Current status of Wells Turbine for Wave Energy Conversionijsrd.com
The method of wave energy conversion utilizes an oscillating water column (OWC). The OWC converts wave energy into low-pressure pneumatic energy in the form of bi-directional airflow. Wells has been used to convert this pneumatic power into uni-directional mechanical shaft power. But a Wells turbine has inherent disadvantages like lower efficiency and poorer starting characteristics. This paper provides current status of wells turbine and reviews various researches done to improve starting and running characteristics of wells turbine.
Airfoil linear wind generator (alwg) as a novel wind energy extraction approachijmech
Linear wind generator (LWG) is a sufficient way of wind energy harnessing process. However, complicated
LWG energy extraction mechanism such as complex system for transferring linear motion to rotational
motion and problems related to changing the angle of attack is resulted to energy dissipation. In the other
hand the linear generator that delivers ocean wave energy to electricity has been developed as a new renewable energy extraction method. Some of the problems associated with this technology are corrosion,
high cost of manufacturing, high requirement for installation and construction, economical consideration,etc. In the most recent works, low dissipation energy in mechanism, low cost, simplicity and high performance are highly regarded as environmentally friendly methods for wind energy extraction mechanisms. In the current study, we would like to introduce a new and efficient method to extract wind energy using airfoil linear wind generator(ALWG). ALWG is a new method that produces liner reciprocating motion via attached airfoils to a mover in a magnetic field in order to generate electricity.The most important advantage of ALWG is its simplicity and its compatibility to all wind situations that can be more controllable relative to ocean-based and also relative to LWG that become challengeable problem.
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.
Current status of Wells Turbine for Wave Energy Conversionijsrd.com
The method of wave energy conversion utilizes an oscillating water column (OWC). The OWC converts wave energy into low-pressure pneumatic energy in the form of bi-directional airflow. Wells has been used to convert this pneumatic power into uni-directional mechanical shaft power. But a Wells turbine has inherent disadvantages like lower efficiency and poorer starting characteristics. This paper provides current status of wells turbine and reviews various researches done to improve starting and running characteristics of wells turbine.
Airfoil linear wind generator (alwg) as a novel wind energy extraction approachijmech
Linear wind generator (LWG) is a sufficient way of wind energy harnessing process. However, complicated
LWG energy extraction mechanism such as complex system for transferring linear motion to rotational
motion and problems related to changing the angle of attack is resulted to energy dissipation. In the other
hand the linear generator that delivers ocean wave energy to electricity has been developed as a new renewable energy extraction method. Some of the problems associated with this technology are corrosion,
high cost of manufacturing, high requirement for installation and construction, economical consideration,etc. In the most recent works, low dissipation energy in mechanism, low cost, simplicity and high performance are highly regarded as environmentally friendly methods for wind energy extraction mechanisms. In the current study, we would like to introduce a new and efficient method to extract wind energy using airfoil linear wind generator(ALWG). ALWG is a new method that produces liner reciprocating motion via attached airfoils to a mover in a magnetic field in order to generate electricity.The most important advantage of ALWG is its simplicity and its compatibility to all wind situations that can be more controllable relative to ocean-based and also relative to LWG that become challengeable problem.
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.
Tidal energy is produced by the surge of ocean waters during the rise and fall of tides. Tidal energy is a renewable source of energy.
During the 20th century, engineers developed ways to use tidal movement to generate electricity in areas where there is a significant tidal range—the difference in area between high tide and low tide. All methods use special generators to convert tidal energy into electricity.
Tidal energy production is still in its infancy. The amount of power produced so far has been small. There are very few commercial-sized tidal power plants operating in the world. The first was located in La Rance, France. The largest facility is the Sihwa Lake Tidal Power Station in South Korea. The United States has no tidal plants and only a few sites where tidal energy could be produced at a reasonable price. China, France, England, Canada, and Russia have much more potential to use this type of energy.
In the United States, there are legal concerns about underwater land ownership and environmental impact. Investors are not enthusiastic about tidal energy because there is not a strong guarantee that it will make money or benefit consumers. Engineers are working to improve the technology of tidal energy generators to increase the amount of energy they produce, to decrease their impact on the environment, and to find a way to earn a profit for energy companies.
Tidal Energy Generators
There are currently three different ways to get tidal energy: tidal streams, barrages, and tidal lagoons.
For most tidal energy generators, turbines are placed in tidal streams. A tidal stream is a fast-flowing body of water created by tides. A turbine is a machine that takes energy from a flow of fluid. That fluid can be air (wind) or liquid (water). Because water is much more dense than air, tidal energy is more powerful than wind energy. Unlike wind, tides are predictable and stable. Where tidal generators are used, they produce a steady, reliable stream of electricity.
Placing turbines in tidal streams is complex, because the machines are large and disrupt the tide they are trying to harness. The environmental impact could be severe, depending on the size of the turbine and the site of the tidal stream. Turbines are most effective in shallow water. This produces more energy and allows ships to navigate around the turbines. A tidal generator's turbine blades also turn slowly, which helps marine life avoid getting caught in the system.
The world's first tidal power station was constructed in 2007 at Strangford Lough in Northern Ireland. The turbines are placed in a narrow strait between the Strangford Lough inlet and the Irish Sea. The tide can move at 4 meters (13 feet) per second across the strait.
Barrage
Another type of tidal energy generator uses a large dam called a barrage. With a barrage, water can spill over the top or through turbines in the dam because the dam is low. Barrages can be constructed across tidal rivers, bays, and estuaries.
Ocean wave machine is rotated by wave energy. Wave machine drives the generator rotor, pump to store the water at high level, compressor to store the air in compressed air storage plant. Here it is presented the different method to harness wave energy.
General objective
discuss the various ocean energy sources
interpret the energy transformation in wave energy conversion
discuss the working of various type wave energy plant
Specific objectives
define the wave energy
write benefits and application of wave energy system
explain the types of wave energy plant
Modelling Of Underground Cables for High Voltage Transmissiontheijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
Theoretical work submitted to the Journal should be original in its motivation or modeling structure. Empirical analysis should be based on a theoretical framework and should be capable of replication. It is expected that all materials required for replication (including computer programs and data sets) should be available upon request to the authors.
The International Journal of Engineering & Science would take much care in making your article published without much delay with your kind cooperation
DESIGN OF THE ELECTRONIC LOAD CONTROLLER USING MICRO CONTROLLER BASED ZERO CR...elelijjournal
Small hydro power plant project (SHPP) a significant role in renewable energy sector in several countries, Especially Indonesia, among different categories, community based and estate based hydro projects use electric load control technology since it can be locally manufactured, easily to installation and the low cost. For example; constant voltage and frequency in Self-Excited Induction Generator (SEIG). In this method, the principle of phase angle control of back to back thyristor is used. A thyristor is fired at a specific delay angle relative to the zero voltage crossing of the sine wave. A thyristor commutates at zero crossing, will be occurs a twice the frequency and generates total harmonic distortion about of 40% in current with added reactive power burden. This scheme can continuously vary the dump power over nearly the entire range from zero to full load as the delay angle varies from 0 to 180 degree.
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
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- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
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Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
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1. Insights into SAP testing best practices
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Execution from the test manager
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SAP heatmap example with demo
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GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
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The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
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Review of journal articles of wave energy converters and their impact on power systems in sri lanka
1. ME 6213 RESEARCH METHODOLOGY AND ETICS
Review of journal articles of Wave Energy Converters and their Impact on
Power Systems in Sri Lanka
Submitted to
Department of Mechanical and Manufacturing Engineering
University of Ruhuna
Hapugala
Dinusha GLN
EG/2014/2392
24/10/2017
2. 1
Abstract
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 [1-2].
Introduction
Since industrialization, the use of fossil fuel energy has increased with the large
amount of side effects like global warming, environmental pollution, decreasing the life
expectation of the living beings. As a result, the importance of renewable energy is on the rise,
and energy sources that use wind, sun, ocean wave and geothermal heat. Among these energy
sources wave energy have a unique energy flow, which reciprocation motion, high energy
density with slow speed and seasonal variations in heights and periods [2-4].
1. Ocean wave energy
Wave power is the transport of energy by wind waves and a unlimited renewable energy source
that can get free, and the capture of that energy to do useful work for example, electricity
generation, water desalination, or the pumping of water (into reservoirs). A machine able to
exploit wave power is generally known as a wave energy converter (WEC).
2. Benefits and Challengers
Sea waves offer the highest energy density among renewable energy sources. Limited negative
environmental impact in use. Natural seasonal variability of wave energy, which follows the
electricity demand in temperate climates. Waves can travel large distances with little energy
loss. Storms on the western side of the Atlantic Ocean will travel to the western coast of
Europe, supported by prevailing westerly winds. It is reported that wave power devices can
generate power up to 90 per cent of the time, compared to ∼20–30 per cent for wind and solar
power devices. When considering the challengers that occur working with the ocean wave is
conversion of the slow, random and high force oscillatory motion into useful motion to drive
3. 2
a generator with output quality acceptable to the utility network. This variable input has to be
converted into smooth electrical output, for that some energy storage system or an array of
devices is required. There are also design challenges in order to mitigate the highly corrosive
environment of devices operating at the water surface [2].
3. Wave energy converters (WEC)
There are over 1000 wave energy converting concepts and method all over the world. Despite
this large variation in design, WECs are generally categorized by location, type and the modes
of the operation. There are three type of locations in the oceans according to the establishment
of the wav energy power plant. Shoreline devices which can be placed on sea bottom in
shallow water, Near to shore devices which can be deployment in approximately 10 -20 meters
of water depth, hundreds of meters or up to some kilometers away from shore and the offshore
devices which Floating or submerged devices in deep waters, moored to the sea floor. The
advantage of siting a WEC in deep water is that it can harvest and generate greater amount of
energy because of the higher energy content in the deep water waves but it is difficult to
construct and maintain because of the greater wave height and energy content in the waves,
need to be designed with high strength and non-corrosive materials. But, floating devices in
deep water offer greater structural economy. It is useful to note that wave energy occurs in the
movements of water near the surface of the sea. Up to 95% of the energy in a wave is located
between the water surface and one-quarter of a wave length below it. From the large variation
in designs and concepts, WECs can be classified into three predominant types. Which are
point absorber (Figure 1), attenuator (Figure 2) and the terminator (Figure 3) [2-5].
Methods of operation also can be divided in to the three main four main categories,
which are submerged pressure differential (Figure 3), oscillating wave surge converter,
oscillating water column (Figure 4) and the over topping device [2,6-7,9,12].
Figure 1: Point absorber
device: OPT Powerbuoy [3].
Figure 2: Attenuator device:
Pelamis wave farm [6].
Figure 3: Terminator device:
Salter’s Duck [7].
4. 3
4. Power take off methods
The method of energy capture varies from device to device, but the general method of
producing electrical power is through conventional high-speed rotary electrical generators is
slightly different same concept for all devices. Let’s consider different types generator which
are rotary generator type, turbine transfer and electrical linear generation [1, 2].
Rotary generator type
Electricity generated through the magnetically interaction between the stator and rotary. This
can be divided sub models according to the behavior and the type of the stator and the rotary
(permanent magnet or a field winding).
Double fed induction generator
Squirrel cage induction generator
Permanent magnet synchronous generator
Field wound synchronous generator
Figure 3: Submerged pressure differential [8]. Figure 4: OWC: the Limpet [10].
Figure 5: Overview of different wave energy extraction systems [1].
5. 4
Turbine transform
Turbine transfer’ is the term used here to represent the method employed in devices where the
flow of fluid (either sea water or air) drives a turbine, which is directly coupled to a generator.
The types of devices using direct transfer include OWCs and overtopping devices and the air
transfer through the oscillation water column method. Propeller-type turbines are often used
for the turbines generators.
Electrical linear generator
A linear synchronous generator offers the possibility of directly converting mechanical energy
into electrical energy. The electrical direct drive PTO alternative. This method is much simpler
than other methods, with no intermediate steps between the primary interface and the electrical
machine. Conventional electrical machines are designed to be driven with high-speed rotary
motion. The air gap speed between the rotor and stator in these machines can be high (upwards
of 60 m/s) allowing for easy conversion into a rapid change in flux [2, 3].
5. Ocean wave energy machine control
In regular waves, energy is captured most efficiently in a point-absorber-type WEC when the
undammed natural frequency of the device is close to the dominant frequency of the incident
wave. At resonance, the velocity of the oscillator is in phase with the dynamic pressure (and
hence force) of the incoming wave, resulting in a substantial transfer of energy from the wave
to the oscillator. The behavior of the device therefore is dependent on the damping. For most
power extraction, damping must be adjusted to achieve maximum energy conversion
efficiency. If the damping is too high then the motions are limited and little power is produced.
If the damping is too light, then the damper absorbs little power and little power is taken off.
With any PTO system, the correct damping is vital for an efficient system. Control can be
divided in to three main categories, which are latching control, reactive loading control and
the simulation for controller development.
6. Research and Development
Modeling and Simulation of wave Energy converter INWAVE
INGINE Inc. developed its own wave energy converter (WEC) named INWAVE and has
currently installed three prototype modules in Jeju Island, Korea. This device is an on shore
type WEC that consists of a buoy, pulleys fixed to the sea-floor and a power take off module
6. 1
(PTO). Three ropes are moored tightly on the bottom of the buoy and connected to the PTO
via the pulleys, which are moving back and forth according to the motion of the buy.
Since the device can harness wave energy from all six degrees of movement of the
buoy, it is possible to extract energy efficiently even under low energy density conditions
provided in the coastal areas [8]. In the PTO module, the ratchet gears convert the
reciprocating movement of the rope drum into a uni-directional rotation and determine the
transmission of power from the relation of the angular velocities between the rope drum and
the generator. In this process, the discontinuity of the power transmission occurs and causes
the modeling divergence [8]. The concept of the virtual torsion spring is used in order to
prevent the impact error in the ratchet gear module, thereby completing the PTO modeling.
The generator uses a 20-kW permanent magnet synchronous generator (Yaskawa, Tokyo,
Japan) and is linked to the grid through an AC/DC converter (LSIS, Gyeonggi-do, Korea) and
a DC/AC inverter [8].
Impact of Generator Stroke Length on Energy Production for a direct drive
wave Energy Converter
The Lysekil wave energy converter (WEC), developed by the wave energy research groupof
Uppsala University, has evolved through a variety of mechanical designs since the first
prototype was installed in 2006 (Figure 07). The WEC model consists of two parts, a buoy
floating on the surface and a linear generator at the seabed. The floating buoy is connected to
the generator via a line. Electrical power is converted by the relative motion between a fixed
stator and a movable translator, as illustrated in Figure 7. There are two end stops installed
Figure 6: Schematics of the INWAVE device model configuration [8].
7. 2
inside the generator, with the purpose to protect the generator from damage during rough wave
conditions [9].
7. Impact of ocean wave energy for Sri Lanka
Wave climate in Sri Lanka
Lots of analyzed data are needed to investigate the most suitable place to establish a Wave
Energy Power Plant (WEPP). There is no any ocean wave power plant in the Sri Lanka since
it covered all around the ocean. There isn’t any detailed information available, in this study,
alternative solutions such as wave data prediction based on wind data have been investigated.
Using the geographical location of Sri Lanka, a first estimation was made to find where the
most energetic waves hit the coast. The north western part of Sri Lanka is in the shadow of
India and the east side is relatively closer to Malaysia, Indonesia and Burma (see Figure 1). It
is more difficult to get larger swells due to the restricted fetch in North West and north east
areas. Therefore, it restricts the energy content in the waves. On the other hand, southern part
of Sri Lanka opens all the way to Antarctica, which enables a long fetch to have good waves.
By considering the two monsoon that effect to the Sri Lanka which are the north east monsoon
and the south west monsoon, southwest part of the Sri Lanka is full of strong large waves [1].
Figure7: illustration of the wave energy converter (WEC) device developed in Lysekil Project: (a)
one of the WEC prototypes L12 was assembled at the harbour; and (b) a simplified mechanical
structure of a direct-drive type WEC device.
8. 3
Figure 6: Wind patterns around Sri Lanka during two monsoon periods: (a) North east, (b)
South west [1].
According to the above details following cities are the most suitable for establish the ocean
wave power plant.
1. Matugama 2. Galle/Unawatuna 3.Matara
4. Hambantota 5. Bundala 6. Palatupana
8. Social and Environmental Concerns
Social and environmental concerns have to be considered before establishing the wave energy
power plant. This can effect to the costal activities, marine biology, water pollution, visual
effects and land uses. These environmental impacts and other problems can be avoided by
selecting and design the eave energy power plants in proper places.
Conclusion
The potential for generating electricity from wave energy is considerable. The ocean is a huge
resource, and harnessing the energy in ocean waves represents an important step towards
meeting renewable energy targets. This review introduces the current status of WEC
technology. The different device types are established and evaluated. Future research should
take a systems engineering approach, as the individual subsystems of a WEC are all intimately
related and any one should not be optimized without considering the other subsystems.
Furthermore, individual WECs will often operate as part of a wave farm, so future systems
analysis must include the interaction between devices.
9. 4
References
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[8] "ARCHIMEDES WAVESWING SUBMERGED WAVE POWER BUOY," [Online].
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9.