GROUP 18

GROUP 18

i have chosen to discuss about a new renewable source of power generation

SEA WAVE ENERGY GENERATION

Renewable energy resources exist over wide geographical areas, in contrast to other energy sources, which are concentrated in a limited number of countries. Rapid deployment of renewable energy and energy efficiency is resulting in significant energy security, climate change mitigation, and economic benefits. In international public opinion surveys there is strong support for promoting renewable sources such as solar
power and wind power. At the national level, at least 30 nations around the world already have renewable energy contributing more than 20 percent of energy supply. National renewable energy markets are projected to continue to grow strongly in the coming decade and beyond.

While many renewable energy projects are large-scale, renewable technologies are also suited to rural and remote areas and developing countries, where energy is often crucial in human development. United Nations' Secretary-General Ban Ki-moon has said that
renewable energy has the ability to lift the poorest nations to new levels of prosperity.

How Does Ocean Wave Power Work?

This is my main article. I have based my summary and explanations on this article.

Introduction:

This article illustrates the immense potential and uses of hydropower as a source of energy. It systematically lists the various facets of this source of energy.

It starts off with an in depth analysis of how hydropower works. Then we move on to the fact that hydropower is not always applicable as an energy source in every case. So we list out requirements for usage of hydropower as a viable energy source:

1) Determining 'head': which means we basically estimate the energy output that a site of hydroelectric power will generate based on scientific principles and calculations..

2) Determining Economic Feasibility: We next logically need to determine whether this site will be economically viable to us with respect to capital and expected output.

Specifics:

Later we go into the technical specifics of the system components of a hydroelectric power plant: channels, storage and filters; turbines and waterwheels; and studying the basic mechanics of the system such as impulse and reaction.

Then we get into the legal specifics of obtaining water and land rights for this project.

Finally we find out about the process to contact the utility to legally sell the generated power at a profit.

Conclusion:

In conclusion, from all the technical knowledge gathered, we observe that this is an extremely clean form of energy with a great potential for serving as a singular source of clean energy in the future.

 It is the most advanced wave energy company and has already demonstrated its Generation 1 Pelamis Wave Generators off the coast of Portugal.It is now devlopeding a 25 MW wave energy farm off the same area using its Pelamis 2 Wave Generators which are more advanced. It was the world’s first commercial scale machine to generate electricity to the grid from offshore wave energy and the first to be used commercially.Alongwith giant German utility E.On it is testing a P2 Pelamis machine over three years at the European Marine Energy Centre (EMEC).The machine floats semi-submerged on the surface of the water and is made up of a number of cylindrical sections joined together by hinged joints.  As waves pass down the length of the machine these sections flex relative to one another.  The motion at each hinged joint is resisted by hydraulic cylinders which pump fluid into high pressure accumulators allowing electrical generation

 Power electronics consist of semi-conductor device technology, mounting technology including cooling, control and protection. In applying power electronics, the system with the power grid. The fourth is the development of future energy supply networks such as Power parks, Micro grids, and Smart grids.

 1) High-speed response Compared with storage batteries, the EDLCs are capable of high speed charging and discharging.

 2) Long operational life after frequent charge/discharge actions Compared with storage batteries, the EDLCs can withstand frequent charge/discharge duty cycles. In addition, the operational life is long.

3) Generation of active power in high preference when fluctuations occur in active and reactive power at the same time, active power is output in higher performance.

 4) Generation of a constant reactive power According to the reactive power command value sent from the supply and demand control system, it is possible to generate a constant level of reactive power burden to be shouldered by the generator.

A renewable source of energy - saves scarce fuel reserves. • Non-polluting and hence environment friendly. • Long life - The first hydro project of India completed in 1897 is still in operation at Darjeeling. • Cost of generation, operation and maintenance is lower than the other sources of energy. • Ability to start and stop quickly and instantaneous load acceptance/rejection makes it suitable to meet peak demand and for enhancing system reliability and stability. • Has higher efficiency (over 90%) compared to thermal (35%) and gas (around 50%). • Cost of generation is free from inflationary effects after the initial installation. • Storage based hydro schemes often provide benefits of irrigation, flood control, drinking water supply, navigation, recreation, tourism, pisciculture etc.

books:- 1> book name -Ocean Waves and Oscillating Systems: Linear Interactions Including Wave-Energy Extraction

author - Johannes Falnes

publication year : 07-Jul-2005 

publisher: Cambridge University Press

youtube link-www.youtube.com/watch?v=6Y-0xKf5oyI

journal link-link.springer.com/content/pdf/10.1007/s10712-008-9047-x.pdf

internet sites : 1> www.sdeglobal.com/

2> www.emec.org.uk › Marine Energy

3> www.thinkglobalgreen.org/WAVEPOWER.html

4> www.seao2.com/oceanenergy/

2)Power electronics for renewable and dictributed energy systems by Sudipta Chakraborty and Marcelo G. Simoes 2013 edition

3)https://www.youtube.com/watch?v=RnBBF08XJyc

4)https://www.youtube.com/watch?v=hFEZS1nGjAI

5)https://www.youtube.com/watch?v=dVvS9OJEhig

6)http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4778368

7)http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6939775

a)Yes b)No

2)Do you think this topic is useful to present day life?(single option)

a)Yes b)No

3)Please give the reasons supporting your answer?(2-3 lines)

4)Please type your review regarding this topic (if anything is wrong about the topic)

(My target audience are students)

MICRO GRID –A micro grid is a small-scale power grid that
can operate independently or in conjunction with the area's main electrical. 

INDESPENSABLE–  absolutely necessary.

SIMULATION –Simulationis the imitation of the operation of a
real-world process or system over time.

DEAD BAND - A dead band (sometimes called a neutral zone or deadzone) is an interval of a signal domain or bandwhere no action occurs 

INTERFACE –a point where two systems, subjects, organizations, etc. meet and interact.

PARADIGM SHIFT -  a fundamental change in approach or underlying assumptions.

1.Aerospace:

Space shuttle power supplies

Satellite power supplies

Aircraft power system

2. Commercial:-Advertising, heating, air-conditioning power supplies, computer, office equipment, elevators, light dimmer, uninterruptible power supplies, central refrigeration.

3. Industrial:-Arc and Industrial furnaces, blowers and fans, pumps and compressors, industrial lasers, transformer tap changers, rolling mills, textile mills, excavators, cement mills, welding

4. Residential:-Air conditioning, cooking, lighting, refrigerators, electric-door openers, dryers, fans, personal computers, vacuum cleaners, washing machine, food mixers

5. Telecommunication :-Battery chargers, power supplies

6. Transportation:-Battery chargers, traction control of electric vehicles, electric locomotives, street cars, trolley buses, subways, automotive
electronics.

7. Utility systems:-High voltage DC Transmission, Excitation systems, VAR compensation, Static circuit breakers, fans and boiler feed pumps, supplementary energy systems. Due to the developments in power
electronics field, the power transmission and distribution field faces
tremendous changes such as HVDC transmission, Smart grid system. Conventional power transmission happens based on AC supply.

This form of energy if properly utilised, can be alternative source of

power to non-renewable sources of energy such as coal,etc.Being a

renewable source of energy power can be generated from it till we want.

The renewable sources are not able to satisfy the growing needs of mankind   There is a crisis of sources like oil,coal,etc.These problems could be solved through a

broad implementation of Wave energy technologies.

2. Will help to reduce our dependence on conventional sources

As we will move from conventional sources of energy to non-conventional sources of

energy,these conventional sources can be saved for a better future.An estimate about

sea wave power generation says that if we take this form of energy seriously then  

energy that can be harvested from the world’s oceans is equal to twice the amount of

electricity that the world produces now. Such amount of clean, cost-efficient

energy will certainly assist the World’s green and economic development.

Buoy-an anchored float serving as a navigation mark, to show reefs or other hazards, or for mooring.

biofouling-the fouling of underwater pipes and other surfaces by organisms such as barnacles and algae.

trawling-searching thoroughly

barge-a long flat-bottomed boat for carrying freight on canals and rivers, either under its own power or towed by another.

1.Would you like to advance the cause of renewable energy?

1)Yes 2)No 3)Not sure

2.Which field of renewable energy do you like the most?

(Answer in a line or two giving a suitable reason)

3.Was my topic helpful to you in any way?

1)Yes 2)No 3)Not sure

4.Provide a suggestion to improve my topic.

For further information, refer to these websites 

1) www.hydropower.inel.gov

2) www.homepower.com

3) www.geocities.com/wim_klunne/hydro/index.html

4) www.eren.doe.gov

5)https://www.youtube.com/watch?v=blqqso1ApPA

6)https://www.youtube.com/watch?v=Uhjhufhg3Xk

7)https://www.youtube.com/watch?v=SkIzKGot0Ss

If we are able to apply the use of electronics in generation of power from sea waves and minimize the power loss then we will be able to save the depleting natural resources of our dear earth.

We think our team will be successful in conveying to the young generation that renewable resources are better sources of energy as compared to non-renewable resources

My target audience is basically the general public, alongwith teachers and students.

Survey:

1. Do you think Hydropower is a feasible energy source?

a. Yes

b. No

c. Can't say

2. Do you think the advantages of Hydropwer outweigh the reprecussions?

a, Yes 

b. No

c. Can't say

3. Do you encourage usage of hydropwer as a central energy source?

a. Yes

b. No

c. Don't care

4. Have you actively supported any such project?

a. Yes

b. No

c. Want to

5. Would you actively support such a project, if given the option?

a, Yes

b. No

c. Haven'tconsidered it