Tidal power or tidal energy is a form of hydropower that converts the energy obtained from tides into useful forms of power, mainly electricity.
Although not yet widely used, tidal energy has potential for future electricity generation. Tides are more predictable than the wind and the sun. Among sources of renewable energy, tidal energy has traditionally suffered from relatively high cost and limited availability of sites with sufficiently high tidal ranges or flow velocities, thus constricting its total availability. However, many recent[when? clarification needed] technological developments and improvements, both in design (e.g. dynamic tidal power, tidal lagoons) and turbine technology (e.g. new axial turbines, cross flow turbines), indicate that the total availability of tidal power may be much higher than previously assumed, and that economic and environmental costs may be brought down to competitive levels.
Historically, tide mills have been used both in Europe and on the Atlantic coast of North America. The incoming water was contained in large storage ponds, and as the tide went out, it turned waterwheels that used the mechanical power it produced to mill grain. The earliest occurrences date from the Middle Ages, or even from Roman times. The process of using falling water and spinning turbines to create electricity was introduced in the U.S. and Europe in the 19th century.
The world's first large-scale tidal power plant was the Rance Tidal Power Station in France, which became operational in 1966. It was the largest tidal power station in terms of output until Sihwa Lake Tidal Power Station opened in South Korea in August 2011. The Sihwa station uses sea wall defense barriers complete with 10 turbines generating 254 MW.
Tidal power or tidal energy is a form of hydropower that converts the energy obtained from tides into useful forms of power, mainly electricity.
Although not yet widely used, tidal energy has potential for future electricity generation. Tides are more predictable than the wind and the sun. Among sources of renewable energy, tidal energy has traditionally suffered from relatively high cost and limited availability of sites with sufficiently high tidal ranges or flow velocities, thus constricting its total availability. However, many recent[when? clarification needed] technological developments and improvements, both in design (e.g. dynamic tidal power, tidal lagoons) and turbine technology (e.g. new axial turbines, cross flow turbines), indicate that the total availability of tidal power may be much higher than previously assumed, and that economic and environmental costs may be brought down to competitive levels.
Historically, tide mills have been used both in Europe and on the Atlantic coast of North America. The incoming water was contained in large storage ponds, and as the tide went out, it turned waterwheels that used the mechanical power it produced to mill grain. The earliest occurrences date from the Middle Ages, or even from Roman times. The process of using falling water and spinning turbines to create electricity was introduced in the U.S. and Europe in the 19th century.
The world's first large-scale tidal power plant was the Rance Tidal Power Station in France, which became operational in 1966. It was the largest tidal power station in terms of output until Sihwa Lake Tidal Power Station opened in South Korea in August 2011. The Sihwa station uses sea wall defense barriers complete with 10 turbines generating 254 MW.
Tidal energy is the form of hydro-power that converts the energy obtained from tides into useful forms of power, mainly electricity. Although not yet widely used, tidal energy has potential for future electricity generation.
This presentation covers the basics of Tidal energy.
In hydroelectric power station the kinetic energy developed due to gravity in a falling water from higher to lower head is utilized to rotate a turbine to produce electricity.
Tidal power, sometimes called tidal energy, is a form of hydropower that exploits the rise and fall in sea levels due to the tides, or the movement of water caused by the tidal flow. Because the tidal forces are caused by interaction between the gravity of the Earth, Moon and Sun, tidal power is essentially inexhaustible and classified as a renewable energy source.
Tidal power can be classified into two types. Tidal stream systems make use of the kinetic energy from the moving water currents to power turbines, in a similar way to underwater wind turbines. This method is gaining in popularity because of the lower ecological impact compared to the second type of system, the barrage. Barrages make use of the potential energy from the difference in height (or head) between high and low tides, and their use is better established.
This report discusses the potential contribution that energy derived from the tides and waves can make to overall energy supply in a sustainable way. It covers the topics of wide range like how tides and waves are formed; functions of the possible and popular power generation systems especially tidal barrages,turbines, oscillating water columns and wave farms. Advantages and disadvantages of tidal and wave energy are also briefly discussed. Some cost data’s used give us brief insight into the economic prospects of the tidal and wave energy. By turning to potential along the Indian coastline, we found that India do have a huge potential of tidal and wave energy, though it has started very late. Government
initiatives and extensive research focused on the mentioned relevant opportunities will surely change the energy scenario.
TIDAL POWER , Generation of Electricity Using Tidal EnergyNishant Kumar
Tidal power is a proven technology and has the potential to generate significant amounts of electricity at certain sites around the world.
Although, our entire electricity needs could never be met by tidal power alone, it can be invaluable source of renewable energy.
These slides presents an overview of different wind generator systems and their comparisons. Later of the slides the modelling and control strategies of wind generators will be discussed.
Tidal energy is the form of hydro-power that converts the energy obtained from tides into useful forms of power, mainly electricity. Although not yet widely used, tidal energy has potential for future electricity generation.
This presentation covers the basics of Tidal energy.
In hydroelectric power station the kinetic energy developed due to gravity in a falling water from higher to lower head is utilized to rotate a turbine to produce electricity.
Tidal power, sometimes called tidal energy, is a form of hydropower that exploits the rise and fall in sea levels due to the tides, or the movement of water caused by the tidal flow. Because the tidal forces are caused by interaction between the gravity of the Earth, Moon and Sun, tidal power is essentially inexhaustible and classified as a renewable energy source.
Tidal power can be classified into two types. Tidal stream systems make use of the kinetic energy from the moving water currents to power turbines, in a similar way to underwater wind turbines. This method is gaining in popularity because of the lower ecological impact compared to the second type of system, the barrage. Barrages make use of the potential energy from the difference in height (or head) between high and low tides, and their use is better established.
This report discusses the potential contribution that energy derived from the tides and waves can make to overall energy supply in a sustainable way. It covers the topics of wide range like how tides and waves are formed; functions of the possible and popular power generation systems especially tidal barrages,turbines, oscillating water columns and wave farms. Advantages and disadvantages of tidal and wave energy are also briefly discussed. Some cost data’s used give us brief insight into the economic prospects of the tidal and wave energy. By turning to potential along the Indian coastline, we found that India do have a huge potential of tidal and wave energy, though it has started very late. Government
initiatives and extensive research focused on the mentioned relevant opportunities will surely change the energy scenario.
TIDAL POWER , Generation of Electricity Using Tidal EnergyNishant Kumar
Tidal power is a proven technology and has the potential to generate significant amounts of electricity at certain sites around the world.
Although, our entire electricity needs could never be met by tidal power alone, it can be invaluable source of renewable energy.
These slides presents an overview of different wind generator systems and their comparisons. Later of the slides the modelling and control strategies of wind generators will be discussed.
Explains how energy from tides is produce and mechanically obtained. A practical application of Hydraulic Machines. After reading this you will be able to understand the tidal energy, waves, and ways we use to obtain energy or generate electricity practically.
This ppt explained the basic concept of Tidal energy , Components of Tidal barrage powerplant, Modes of generation of Tidal power, Tidal stream generator, single and double bassin arrangement, Horizontal & vertical axis Tidal turbine Helical Turbine, Dynamic Tidal powerplant, Environmental impacts and Site selection for tidal powerplant. Also describes the advantages and disadvantages of Tidal powerplant.
Tidal Energy the most common topic in science section and one of the most interesting topic . This slides contains the information how does actually tidal energy in generated and what are the advantages and disadvantages of tidal energy . Wave power design and how it works . This topic is mostly used as a project in schools and colleges in science section in higher schools
this presentation explores hydro power
different types ,its uses,where it has been used,how it is used,its advantages and disadvantages,and one model created by us using sustainable materials.
NUMERICAL SIMULATIONS OF HEAT AND MASS TRANSFER IN CONDENSING HEAT EXCHANGERS...ssuser7dcef0
Power plants release a large amount of water vapor into the
atmosphere through the stack. The flue gas can be a potential
source for obtaining much needed cooling water for a power
plant. If a power plant could recover and reuse a portion of this
moisture, it could reduce its total cooling water intake
requirement. One of the most practical way to recover water
from flue gas is to use a condensing heat exchanger. The power
plant could also recover latent heat due to condensation as well
as sensible heat due to lowering the flue gas exit temperature.
Additionally, harmful acids released from the stack can be
reduced in a condensing heat exchanger by acid condensation. reduced in a condensing heat exchanger by acid condensation.
Condensation of vapors in flue gas is a complicated
phenomenon since heat and mass transfer of water vapor and
various acids simultaneously occur in the presence of noncondensable
gases such as nitrogen and oxygen. Design of a
condenser depends on the knowledge and understanding of the
heat and mass transfer processes. A computer program for
numerical simulations of water (H2O) and sulfuric acid (H2SO4)
condensation in a flue gas condensing heat exchanger was
developed using MATLAB. Governing equations based on
mass and energy balances for the system were derived to
predict variables such as flue gas exit temperature, cooling
water outlet temperature, mole fraction and condensation rates
of water and sulfuric acid vapors. The equations were solved
using an iterative solution technique with calculations of heat
and mass transfer coefficients and physical properties.
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Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
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3. INTRODUCTION:-
WHY TIDAL GENERATORS CAME INTO
EXISTANCE?
RENEWABLE ENERGY SOURCE
IMPROVED ENERGY SECURITY
MOST EFFICIENT ENERGY RESOURCE
NO GREENHOUSE GAS EMMISION
4. TIDES & TIDAL POWER:-
Rise and fall in sea levels
Caused by the combined effect of
moon and sun.
Tides are quite predictable.
5. TIDAL GENERATORS:-
WORKING PRINCIPLE:-
Consists of a turbine & an electrical
generator(alternator).
Turbines/windmill like blades are
installed on the ocean floor.
Turbine and generator are connected
directly or by a gearbox.
Due to kinetic or potential energy of
sea water the turbine rotates.
Generator rotates and produces electricity
At shore, electricity can be distributed.
7. TIDAL STREAM GENERATORS:-
It make use of kinetic energy
of moving water.
The power taken by turbine is
given by
P=(rCpAV3
)/2
It’s design is similar to
wind turbines but it’s
performance is better.
8. TIDAL V/S WIND TURBINES:-
Requirement of
land.
Density
difference
predictability
9. TIDAL BARRAGES:-
It make use of potential
energy of sea water.
Difference in water level b/w
barrage & sea is used.
It consist of turbine, sluice gate,
a basin to store water etc.
During high tides the basin is
filled through sluice gate.
10. DYNAMIC TIDAL POWER:-
DTP is an untried but
promising technology.
an interaction between potential
and kinetic energies in tidal flows.
Very long dams( 30–50 km length)
from coast to coast are needed.
By this Tidal phase differences are
introduced across the dam.
11. COMPARISION :-
Advantages:-
Inexhaustible energy resource
Most efficient energy source
Predictability
No green house gas emission
Protect from dangerous tides
Disadvantages:-
Ecological
Corrosion
High investment at start
Can not produce electricity continuously
12. FUTURE OF TIDAL GENERATERS:-
Sihwa Lake Tidal Power Station(254MW) in South
Korea.
Rance Tidal Power Station(240MW) in France.
812 MW tidal barrage near Ganghwa Island (South
Korea) Completion is planned for 2015.
A 1,320 MW barrage is proposed by the South Korean
government, with projected construction start in 2017.
13. CONCLUSION:-
Tidal energy is a promising renewable energy source
available to the world . since the past one decade,
numerous R&D efforts have been carried out hoping
that tidal energy can become a realistic renewable
energy source one day.
