Vajad kellegagi rääkida?
Küsi julgelt abi LasteAbi
Logi sisse

New energy sources (0)

1 Hindamata
Punktid
New energy sources
Rauno
Hermann Scheer
Energy law ­ example for 47 countries
6.3% to over 20%
Numerous awards including The Right Livelihood Award
Renewable energy in world
Investments
63 billion USD > 120 billion USD
20062009
Wind energy: 74 000 MW to 135 000 MW
Solar energy: 5100 MW to 19 000 MW
WHAT ARE THE ALTERNATIVES TO TODAYS
SOLAR, WIND AND BIOMASS ENERGY SOURCES?
Osmotic power
How it works?
Pressure created by osmosis powers turbines
Where could be used
Where fresh and salt water meet (creeks, fjords)
Desalination plants
Now
Worlds first test factory in Norway Tofte (2009)
Disadvantages
Km2s of membranes needed
Norway, Tofte
Click to edit Master text styles
Second level
Third level
Fourth level
Fifth level
Prediction
Cost to consumer
Now ­ 10c/kWh
In future ­ 5c/kWh
Role in global power supply
Now 2050 ­ up to 4%
Solar heating
How it works?
Focused light heats oil up to 400o> steam > generators
Heat can be stored
Where could be used?
Large unpopulated areas (no sandstorms, strong winds)
To be economically efficient, needs 2000 kWh of sun per day can't be
further from equator than 40o
Now
Spain, Granda province Andasol power plant
Andasol 1 and 2
Click to edit Master text styles
Second level
Third level 2
Fourth level
Fifth level
1
Prediction
Cost to consumer
Now: 1825 c
Future: 5 c
Role in global power supply
Now: 2050: up to 25%
Solar updraft tower
How it works
Heated air rises through giant towers > starts turbines
Now
Spain Manzanares 198689
Namibia 1,5 km "Green tower"
Disadvantages
Enormous building costs. Requires large areas, but can be used as
greenhouses
Solar updraft tower
Click to edit Master text styles
Second level
Third level
Fourth level
Fifth level
Spain, Manzanares
Click to edit Master text styles
Second level
Third level
Fourth level
Fifth level
Prediction
Cost
Sceptics: 2535c
Optimists: 612c
Role in global power supply
400 power plants would make up 1%
Tidal power
How it works?
Underwater rotors, water is denser ­ doesn't need as large rotors, 710
km/h current speeds would be sufficient
Where could it be applied?
In Europe more than 100 suitable places
Where could be seen?
In France, St. Malo (leeve)
First tidal turbines, North Ireland
France, St. Malo
Click to edit Master text styles
Second level
Third level
Fourth level
Fifth level
Tidal turbine
Click to edit Master text styles
Second level
Third level
Fourth level
Fifth level
Prediction
Cost to consumer
Now: 1020c
Future: 3c
Role in global power supply
Now: 2050: 2%
Wave energy
How it works?
Sea snake
Oyster
Suitable areas
Costal areas with strong waves ­ Scotland, Portugal, also many places in
Pacific areas and by America
Disadvantages
Expencive, soficticated equipment
Equipment needs to stand storms
"Sea snake" Click to edit Master text styles
Second level
Third level
Fourth level
Fifth level
Vágr Atfer
"Oyster"
Click to edit Master text styles
Second level
Third level
Fourth level
Fifth level
Prediction
Cost to consumer
Now: 1550c
2050: 7c
Role in global power supply
Now: 2050: >15%
Geothermal energy
How it works?
average 1km ­ 35o C
Pipes would go down up to 6 km
Heated water > heats organic substance >steam >starts turbines
Where can be applied?
Where heated layers are nearer to surface
Where can be seen?
Largest ­ north from San Fransisco in Mayacama mountains
Disadvantages
Looking for suitable sites is expensive, dangerous
Prediction
Cost to consumer
Now: 320c
Future: >5c
Role in global power supply
Now: 0.3%
2050: >2%
Spacebased solar power
How it works?
Solar sail focuses light onto a collector >microwaves to earth
Where could be applied?
36 000 km from Earth's surface
Disadvantages
Logistical nightmare
Energy loss
Click to edit Master text styles
Second level
Third level
Fourth level
Fifth level
Prediction
Cost to consumer
???
Role in global power supply
???
Thank you for listening
Vasakule Paremale
New energy sources #1 New energy sources #2 New energy sources #3 New energy sources #4 New energy sources #5 New energy sources #6 New energy sources #7 New energy sources #8 New energy sources #9 New energy sources #10 New energy sources #11 New energy sources #12 New energy sources #13 New energy sources #14 New energy sources #15 New energy sources #16 New energy sources #17 New energy sources #18 New energy sources #19 New energy sources #20 New energy sources #21 New energy sources #22 New energy sources #23 New energy sources #24 New energy sources #25 New energy sources #26 New energy sources #27 New energy sources #28
Punktid 50 punkti Autor soovib selle materjali allalaadimise eest saada 50 punkti.
Leheküljed ~ 28 lehte Lehekülgede arv dokumendis
Aeg2012-06-04 Kuupäev, millal dokument üles laeti
Allalaadimisi 5 laadimist Kokku alla laetud
Kommentaarid 0 arvamust Teiste kasutajate poolt lisatud kommentaarid
Autor onujaar Õppematerjali autor
Ingliskeelne ettekanne teemal "New/Alternative energy sources". Kommentaaridega. 28 slaidi. Suuresti GEO ajakirja artikli põhjal tehtud.

Sarnased õppematerjalid

Energeetika arengu plaanimine
20
docx

Energeetika arengu plaanimine

ELEKTROENERGEETIKA INSTITUUT Referaat Taastvad Energiaallikad Esitamise tähtaeg 14.04.2009 Õppejõud: Hannes Agabus Tudeng: Sergei Belosapko Nikita Naumov Tallinn 2009 Contents: 1. Renewable energy 1.1. Costs................................................................................................................... 2 1.2. Potential future utilization..............................................................................4 1.3. Why Don't We Use More Renewable Energy? ...........................................5 2. Energy Types 2.1. Wind Energy.......................................................................................................6 2.1.1. Annual Generation........

Energeetika arengu plaanimine
Solar power - presentation2
12
pptx

Solar power - presentation2

Solar Energy Presentation Introduction Solar energy Solar power Ø applications Ø energy storage method and solar power plants Solar energy Radiant light and heat from the sun Solar energy technologies include: Ø solar heating, Ø solar photovoltaics, Ø solar thermal electricity , Ø solar architecture Solar power Conversion of sunlight into electricity Using: Ø Photovoltaics (PV) Ø concentrated solar power (CSP). Click to edit Master text styles Second level Third level Fourth level Fifth level

Inglise keel
Renewable energy
30
pptx

Renewable energy

Renewable energy Meriliin Lend Estonian University of Life Sciences Tartu 2013 Topics Renewable energy Solar energy Wind energy Hydroelectric power Geothermal energy Biomass energy Renewable energy Renewable energy comes from sources that naturally renew, or will not run out in our lifetimes. Includes sunlight, wind, water, geothermal heat and various forms of biomass. Renewable energy cannot be exhausted and is constantly renewed. Does not harm the environment. Saves money. Solar energy Solar energy is the technology used to harness the sun's energy and make it useable. Every hour the sun beams onto Earth more than enough energy to satisfy global energy needs for an entire year. Solar energy use has surged at about 20 percent a year over the past 15 years, thanks to rapidly falling prices and gains in efficiency. Solar energy is inexhaustible. Noise free.

Inglise keel
Energy - põhjalik referaat energiast
62
doc

Energy - põhjalik referaat energiast

SISUKORD ENERGY STORY................................................................................................................4 USES OF ENERGY............................................................................................................. 4 2.1 Uses of energy in homes...............................................................................................5 2.2 Types of energy used in homes.................................................................................... 6 2.3 Energy use in different types of homes........................................................................ 6 2.4 Commercial Energy Use...............................................................................................9 2.5 Industrial and Manufacturing Energy Use..................................................................11 2.6 Transportation Energy Use........

Inglise keele foneetika ja fonoloogia
Wave-energy
48
pdf

Wave-energy

1 Wave energy Introduction to wave energy There are several possibilities to harvest different forms of energy from the sea. One of these options is the usage of waves for the generation of electricity. The devices needed to perform this task are called wave energy converters. Wave energy is indirect solar energy in twice. At first there is the wind, which is caused by variations in atmospheric pressure due to a differential solar heating of earth's surface by the sun. Different regions of pressure drives a force which rises a movement of atmospheric air masses that causes the earths wind system. If wind strikes over the surface of an open water, waves are induced. First they are very flat with only a low level of energy. When there is a long distance over

Inglise keel
Biogas – The source of future energy
26
docx

Biogas – The source of future energy

...... Economical....................................................................................................... Dangers of biogas............................................................................................... Future prospects................................................................................................ Conclusion......................................................................................................... Used sources..................................................................................................... Introduction To be honest I got the list of topics after most interesting ones for me were taken. At first I was not very satisfied with my topic but then I realized that this could be actually really interesting thing to make a report of. I chose this particular topic because I have always been interested in green energy. This topic gave me an excellent

Inglise keel
Railgun
17
docx

Railgun

wings of a projectile and the apparatus surrounded by a magnetic field.When current passes through the busbars and projectile, a force is created which propels the projectile along the busbars into air. 4 The first theoretically viable railgun was proposed in 1944 by Joachim Hänsler of Germany's Ordnance Office. The gun was never built but a 1947 report concluded that while it was feasible in theory, the energy consumption for each gun would be enough to illuminate half of Chicago. While minor successes happened afterward, the most notable one was late into the first decade of 2000s, when the U.S. Navy tested a railgun that accelerates a 3.2 kg (7 pound) projectile to hypersonic velocities of approximately 2.4 kilometres per second (8,600 km/h), about Mach 7. They gave the project the motto "Velocitas Eradico", Latin for "I, speed, eradicate"-- or simply, "Speed Kills". 1.2 Theory behind it

Inglise keel
Introduction of SCM
40
doc

Introduction of SCM

shared savings. Consumers can benefit as well through higher quality goods provided at a lower cost. ACTIVITIES/FUNCTIONS OF SCM Supply chain management is a cross-functional approach to managing the movement of raw materials into an organization and the movement of finished goods out of the organization toward the end-consumer. As corporations strive to focus on core competencies and become more flexible, they have reduced their ownership of raw materials sources and distribution channels. These functions are increasingly being outsourced to other corporations that can perform the activities better or more cost effectively. The effect has been to increase the number of companies involved in satisfying consumer demand, while reducing management control of daily logistics operations. Less control and more supply chain partners led to the creation of supply chain management concepts. The purpose of supply chain management

Kategoriseerimata




Meedia

Kommentaarid (0)

Kommentaarid sellele materjalile puuduvad. Ole esimene ja kommenteeri



Sellel veebilehel kasutatakse küpsiseid. Kasutamist jätkates nõustute küpsiste ja veebilehe üldtingimustega Nõustun