Leidsid 33 sarnast õppematerjali, mis on seotud failiga "Green Energy presentation". Need materjalid aitavad sul teemat sügavamalt mõista.
german, germany, green, able, waste, recycling, power, work, other, cost, yearper, solar, study, fuels, plastic, ability, sustainability, between, reduce, forbes, than, plant, geothermal, environmental, works, glas, country, tons, mother, emissions, government, hydropower, fossil, turn, since, sources, kyoto, protocol, march, recycle, glass, material............................................................................................27 SOLAR ENERGY..............................................................................................................27 8.1 Photovoltaic energy...................................................................................................... 28 8.2 Solar thermal heat.......................................................................................................29 8.3 Solar thermal power plants......................................................................................... 30 8.4 Solar energy and the environment..............................................................................30 WIND ENERGY.................................................................................................................31 9.1 The History of Wind ..................................................................................................31 9
.......................... 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........................................................................................7 2.1.2. Growth and cost trends................................................................................8 2.1.3. Theoretical potential.....................................................................................9 2.1.4. Benefits of wind energy................................................................................10 2.2. Solar Energy........................................................................................................11 2.2.1 Development, deployment and economics.................
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
Margit Tepner k0848752 Sustainability aspects of biofuels 1. Introduction The literature review will discuss the sustainability aspects of biofuels. Food production will be the main concern as it is the most debated issue, but other aspects, such as land use change and water consumption will be also considered as they are essential aspects in the biofuels sustainability criteria. The review will discuss the viability of biofuels based on the current technologies. Second-generation biofuels are not yet commercially viable and therefore will not be discussed; although they could significantly improve the sustainability of biofuels when they break through to the industrial scale. 2. The scale of biofuels production 2
.......................... Producing process............................................................................................... Nowadays............................................................................................................ Areas where biogas is used in............................................................................. Biogas as replacement of fuel.......................................................................... Other benefits..................................................................................................... Health.............................................................................................................. Economical....................................................................................................... Dangers of biogas............................................................................................... Future prospects
require urgent attention. 1. Pollution: Pollution of air, water and soil require millions of years to recoup. Industry and motor vehicle exhaust are the number one pollutants. Heavy metals, nitrates and plastic are toxins responsible for pollution. While water pollution is caused by oil spill, acid rain, urban runoff; air pollution is caused by various gases and toxins released by industries and factories and burning of fossil fuels; soil pollution is majorly caused by industrial waste that deprives soil from essential nutrients. FIND OUT 5 WAYS HOW TO STOP POLLUTION. 2. Global Warming: Climate changes like global warming is the result of human practices like emission of Greenhouse gases. Global warming leads to rising temperatures of the oceans and the earth surface causing melting of polar ice caps, rise in sea levels and also flash floods, excessive snow or desertification. FIND OUT 5 WAYS HOW TO STOP GLOBAL WARMING. 3
Natural resources-our treasure Natural resources are land or raw materials like minerals, fluids, gases, organic matters and also woods, groundwater, animals and so on, in other words it's everything that human hasn't created. These resources are also used in industry. We get natural resources from the environment. Many of them are essential for our survival while others are used for satisfying our wants. Renewable resources: Some natural resources can be reproduced within a few years or decades. These are called renewable resources. Solar radiation, wind and hydroelectricity, are perpetual resources
Tartus secondary school of business Nuclear Power Helena Nulk form 11b Tartu 2009 Table of contents Introduction..........................................................................................................................................3 What is nuclear power?....................................................................................................................3 Nuclear life cycle.............................................................................................................................3 What is nuclear energy?...................................................................................................................3 What is nuclear fusion?.................................................................
and many property owners have elevated their structures in low-lying areas. As a result of the erosion and ruin of properties by large storms on coastal lands, governments have looked into buying land and having residents relocate further inland. How to help prevent global warming GREEN JOBS AND CLEAN ENERGY Choose renewable energy. Pick a Green-e-certified energy supplier that generates at least half of its power from wind, solar energy and other clean sources. If you don't have that option, look at your current electricity bill to see if you are able to support renewable energy in another way. DRIVE SMARTER CARS Choose an efficient vehicle: High-mileage cars such as hybrids and plug-in hybrids use less gas and save money. Over its lifetime, a 40-mpg car will save roughly $3,000 in fuel costs compared with a 20-mpg car. Compare fuel economy performance before you buy. Drive smart
http://www.whitehouse.gov/news/releases/2001/06/20010611-2.html *I also call on Congress to work with my administration to achieve the significant emission reductions made possible by implementing the clean energy technologies proposed in our energy plan. Our working group study has made it clear that we need to know a lot more. *The United States has spent $18 billion on climate research since 1990 -- three times as much as any other country, and more than Japan and all 15 nations of the EU combined. http://www.guardian.co.uk/environment/2004/feb/22/usnews.theobserver *Jeremy Symons, a former whistleblower at the Environmental Protection Agency (EPA), said that suppression of the report for four months was a further example of the White House trying to bury the threat of climate change. *Senior climatologists, however, believe that their verdicts could prove the catalyst in forcing
Tallinn 2013 Ott Speek Subject: English Geodesy Study group: GI-21b PETROLEUM PRESENTATION Petroleum (L. petroleum, from Greek: Πέτρα (rock) + Latin: oleum (oil) is a naturally occurring flammable liquid consisting of a complex mixture of hydrocarbons of various molecular weights and other liquid organic compounds, that are found in geologic formations beneath the Earth's surface. The name Petroleum covers both naturally occurring unprocessed crude oils and petroleum products that are made up of refined crude oil. A fossil fuel, it is formed when large quantities of dead organisms, usually zooplankton and algae, are buried underneath sedimentary rock and undergo intense heat and pressure. Petroleum is recovered mostly through oil drilling. This comes after the studies of
pressure fluctuations. If the oscillations are ‘in phase’ with already existing waves a furthermore in wave development occurs. If waves have reached a certain high, wind can attack them directly and causes an additional wave growth. Wave energy is a very dense form of indirect solar energy. To compare energy W densities: mean solar power density on earth (over a year) is about 250 . m2 kW Regarding waves this solar energy can be transferred up to 100 inside a wave mcrl per meter of crest length.
financing costs, like in the UK and Ireland, where DH is not established. There are few multi- family houses with central heating and it is expensive to build DH networks in built areas. Most French DH systems are operated according to long-term concessions by companies that sell electricity and gas. No strong actor provides unbiased DH support. In the Czech Republic, gas offers DH severe competition. Much DH is produced at the expense of electricity that is considered more valuable, and waste incineration is not popular. In Romania, DH consumption was reduced by one-half. Distribution losses are enormous. New less polluting plants are needed. Consortia from established DH countries could offer DH systems from fuel to customer if local policies facilitate DH development. Introduction This paper describes barriers to district heating (DH) in various parts of Europe and to Swedish involvement in district-heating business abroad. The paper is based on a report called "District
during braking. 4. Hybrid car engines produce less emission, give better mileage, idle less, and are fuel efficient. Why to purc has e a hybrid c ar? 5. The aerodynamic design reduces drag and the tires are made of a special rubber that reduces friction. 6. The battery has high capacity and is made of nickel-metal- hydride. The battery can run the hybrid when called for. 7. The power-train technology enables using two power sources and enhances fuel efficiancy. 8. There are many choices. You can have a hybrid from Honda, Ford, Toyota, GMC, and Chevrolet. 9. If your transportation of choice is a hybrid then the US Government will applaud your choice by giving you significant tax breaks. (USA only) Hybrid te c hno lo g y Basically a normal, fuel efficient car that has two motors - an electric motor and a gasoline powered motor.
The environment in realtion to mobility/transport in Europe Air pollution is problem all over the world. Through some pollution comes from these natural sources, most pollution is the result of human activity. The biggest causes are the operation of fossil fuel- burning power plants and automobiles that combust fuel. Combined, these two sources are responsible for about 90% of all air pollution in the United States. All kind of pollutions can lead us to serious health problems. For example, air pollution is increasingly being cited as the main cause of lung conditions such as asthma - twice as many people suffer from asthma today compared to 20 years ago. Every year, 3.2m Europeans are diagnosed with cancer - the most common cause of death after heart disease
Sustainable city planning Sandra Erik 11L What is sustainable city planning? • A sustainable city, or also know as eco-city, is a city designed with consideration of environmental impact, inhabited by people dedicated to minimization of required inputs of energy, water and food, and waste output of heat, air pollution - CO2, methane, and water pollution. • It should meet the needs A sustainable city should be able to... • feed itself with minimal reliance on the surrounding countryside, and power itself with renewable sources of energy. • create the smallest possible ecological footprint • produce the lowest quantity of pollution possible • efficiently use land • compost used materials - Practical Achievement • Different agricultural systems - agricultural plots within the city – reduces distance. • Renewable energy sources - wind turbines, solar panels, or
...... problem nowadays. (tarbimine, kohutav/hirmutekitav) 6. ............ is a deep feeling of guilt for something wrong or bad that you have done. (süümepiin/kibe kahetsus) 7. The new car is ................................ (tarbib vähem kütust). 8. A great number of farmers take up ...................... nowadays. (orgaaniline põllumajandus) 9. ....................... and .............. are used less and less on farms. (kunstväetised, taimekaitsevahendid) 10. Industrial and agricultural waste mustn't be .................... into rivers and lakes. (maha laadima) 11. Waste destroys .................... land and ........................ water bodies.(viljakas, ummistama) 12. Calgon ................ your washing machine. (kaitsma) 13. Only ............... materials should be taken to a special .................... (mittekorduvkasutatavad, prügila) 14. Traditional family roles were ............ in this family, so that the father found himself looking after the house and the children
given. After, economic indicators (real GDP growth rate, inflation, unemployment, household consumption, investment, current account, government budget and deficit) of the three countries will be compared to draw a conclusion. 2 Country Specs 2.1 Finland 2.1.1 Background Finland was a province and then a grand duchy under Sweden from the 12th to the 19th centuries, and an autonomous grand duchy of Russia after 1809. It won its complete independence in 1917. During World War II, it was able to successfully defend its freedom and resist invasions by the Soviet Union albeit with some loss of territory. In the subsequent half century, the Finns made a remarkable transformation from a farm/forest economy to a diversified modern industrial economy; per capita income is now among the highest in Western Europe. A member of the European Union since 1995, Finland was the only Nordic state to join the euro system at its initiation in January 1999
pressures from climate change, dwindling resources and growing urban populations. · 70 million people a year migrate from the country to cities. That is about 130 a minute, that means very massive globalization. · At this rate, our future cities may turn out to be quasi-temporary, missing the basics of human life, such as water and electricity, still belching out the waste of fuels that warm the globe. · The New City in China: The buildings and all around it work like biological, growing beings, photosynthesising and producing and re- using their own energy. China will be largest solar manufacturer in the world. · Masdar city in United Arab Emirates near Abu Dhabi. First city in the world, that would rely on the renewable energy sources. 6 square kilometers, home for 50,000 people and 1,500 businesses. · Habitat 2020 is a future example of biomimetic architecture that fuses high-tech ideas with basic cellular
Hello My name is JOHN SMITH and I am here to talk about Hydroelectricity. Global energy use has risen by 70% since 1971 and continues to increase at the rate of 2% per year. There are many scenarios for future demand. One solution would be to use more hydropower. In 2005, renewable energy represented one-fifth of total power generation. Hydropower is the most advanced of the renewable and represents 87% of this production. 160 countries all over the world are using hydropower. Five countries make up more than half of the world's hydropower production. Those countries are: Brazil,Canada, China, Russia and the USA. (Production) *Most of the energy comes from the potential energy of dammed water driving a water turbine and generator
Many of us believe that we lead lives that respect nature but our consumption habits give us away. Many little habits that seem to be sustainable are in fact polluting. Along with pollution, issues like depletion of resources, the rise of consumerism, and the "throw away" culture have led to serious issues. That being said, the fight's not over yet. Fortunately, more people than ever are both aware of and active in the protection of the environment. To protect the environment, waste management and recycling are crucial. When we recycle, used materials are converted into new products, reducing the need to consume natural resources. If used materials are not recycled, new products are made by extracting fresh, raw material from the Earth, through mining and forestry. Recycling helps conserve important raw materials and protects natural habitats for the future. As recycling saves energy it also reduces greenhouse gas emissions, which helps to tackle climate change
Distilled water(doesn't contain CO 2), has pH level 7. Liquids with pH level less than 7 are acidic, liquids with pH level greater than 7 are alkaline. Unpolluted rain has a pH level over 5.7, so it is slightly acidic. Affected areas Places significantly impacted by acid rain around the globe include most of eastern Europe from Poland northward into Scandinavia, the eastern third of the United States and southeastern Canada. Other affected areas include the southeastern coast of China and Taiwan Causes · It is caused when sulfur dioxide and nitrogen oxides are released into the air. In the atmosphere they react with water, oxygen and other chemicals to form more acidic pollutants, known as acid rain. Sulfur dioxide and nitrogen oxides dissolve very easily in water and can be carried very far by wind
All of us should do something, because enviroment is very important to people. Our planet is changing and we need to help it change for the better. One way how to help the enviroment is saving energy. You should switch off anything, that uses electricity. If you’re not using it, then turn it off, it’s simple. This goes for lights, televisions and so on. Also try unplugging if possible, because even when an appliance is turned off, it still may use power. You could switch your light bulbs to LED light bulbs, because these are using less energy and even last longer. If you use renewable energy sources, you won’t cause burning fossil fuels, that causes pollution. Another way how to help the enviroment would be saving water. Turn off the water, when you’re not using it. People often leave water running, when they’re brushing teeth- turn if off between rinses! If you find a leak somewhere, fix it and in the meantime put a bowl
birch – 1500 kWh/ton Wood gas • Wood gas is produced by heating biomass (wood) in a temperature over 700°C without air access or in a method of pyrolysis. Wood gas consists of carbon dioxide, methane and carbon monoxide. The calorific value of wood gas is approximately 1,25 MWh/1000 m³ wood. 34...40 m³ of wood gas can be produced out of a 100 kg of wood Biomass from nature protection area • Ecologically pure • Low cost • Sustainable Biomass from nature protection area – an environmental friendly input for biogas Jaak-Albert Metsoja Nature Conservation Society “Eagle” •The overall managed area today (including chopped area) is 1300 ha •Of that appr. 500 ha was mowed and balled last year •The first phase is restoring the flooded meadow •As for now the material is chopped and just left on the meadow •Dry matter – 85,86 – 90.33 In the DM:
The Body Shop At HomeTM, the direct-selling arm, was launched in the UK in 1994, Canada in 1995, Australia in 1997, and USA in 2001. It has now rolled out in 48 states in the USA and is set to grow even bigger. The Body Shop continues to increase its environmental practices. In 2001, The Body Shop UK region and service centre head offices in Watersmead switched to Ecotricity providing them with energy from renewable sources. In addition, a number of The Body Shop® stores have now converted to green electricity while the rest of the stores are set to follow suit. Campaign successes include the Against Animal Testing campaign. The campaign led to a UK-wide ban on animal testing on cosmetic products and ingredients in November 1998 and led to the largest ever petition (four million signatures) being delivered to the European Commission in 1996. In 1997, The Body Shop was the first international cosmetics company to sign up to
...................................................4 1.1History of railguns...................................................................................................................4 1.2Theory behind it......................................................................................................................5 1.3How a railgun works...............................................................................................................6 1.4How a railgun would work on a military ship in the future....................................................8 3. Research advances so far.............................................................................................................9 3.1 A functional 32 MJ railgun weapon.......................................................................................9 3.2 Multi-shot salvos..................................................................................................................10 4
Running head: NUCLEAR ENERGY Nuclear Energy U.S. Government History of Nuclear Energy- Nuclear Energy History of Nuclear Energy · Uranium was discovered in 1789 by Martin Klaproth. He was a German chemist, and named his discovery after the planet Uranus ("Outline history of," 2010) · 1939-1945 Manhattan Project- atomic energy program to develop the first transportable atomic bomb ("Nuclear technologies timeline," ) · 1942- First self-sustaining nuclear chain reaction ("Nuclear technologies timeline," ) · 1945- Hiroshima and Nagasaki- US. drops atomic bombs to Japan to end World War II ("Nuclear technologies timeline," )
Water creates energy Eduard Kamenski 11a form The world uses energy from many different sources, such as: hydroelectric power, nuclear power plants, solar energy, and wind generated power. There are positive and negative aspects of each source, but which source of energy is best? My opinion is that the best source of energy is water and I'll bring up some facts why do I think so. Hydroelectric power is currently the world's largest renewable source of electricity. It accounts for six percent of the worldwide energy supply or about fifteen percent of the world's electricity. Water has been found to be a major source of energy. Water power is utilized at present mainly as hydro-electricity. It is produced from moving water and from falls with the help of turbines and dynamos. Hydro-electricity has acquired great significance as a source of energy in the country in the
To: Environmental protection agency From: Subject: Wind power versus oil shale Date: September 22 Wind power vs oil shale Introduction The purpose of this report is to analyse if wind power is better than power which is produced from oil shale. The report is based on EWPA (Estonian Wind Power Association) article which is published on their web page. Wind power It is said that the wind power is the most expensive source of power, but this statement is not plausible, because the recourse -wind- is for free. Calculations have shown that if new oil shale blocks were built, it would cost 3473 million EEK in a year per capita. On the other hand, if wind power were renewed in similar amount, it would cost only 868 million EEK per capita in a year. It means that if the wind power were renewed, it would be 17 370 millions EEK cheaper. The fact that wind energy saves resources and produces neither dangerous
introduced: the racoon dog, the American mink and the muskrat. A couple of species have been re-introduced The European beaver, who was hunted to extinction by the end of the 19th century. A vital population of them now exists in Estonia once again. Another re- introduced species is the red deer. An attempt has been made in Estonia in recent years to disperse the population of wolves, encouraging their spread in areas where their colonies have disappeared, and restricting their numbers in other places where it is too high. About 350 bird species have been recorded in Estonia. More than 200 of them breed in Estonia. Due to the vast preserved natural landscapes, large raptorial birds, such as the golden eagle and eagle owl have made Estonia their home. It is the small islets, however, that can really be called bird paradise. Undisturbed by man and protected from most smaller predators by the sea, they are real nesting sanctuaries for a diversity of birds.
European countries. EU population is almost a half milliard European union stands for caring and fair community. All EU members are devoted to peace, democracy, human rights respecting and working together to spread these values all the world. History The beginning of EU might consider the year 1951, when European Coal and Steel Community (ECSC) was constitute. Six countries joined with it for peace: Belgium, Netherlands, Luxembourg, Italy, France and Germany. With that move, coal and steel industry were put under one organisation, so war was almost impossible between these six country. Cooperation in different areas improved, when in 25. March 1957 Treaties of Rom , European Economic Community and European Atomic Energy Community memorandum of association were signed. These were sundry organisations. But they had one name- European Community. As the authorisations broaden, it become European Union in 1993.
Tartu Kutsehariduskeskus Autode ja masinate remondi osakond Rainer Kaine AT-109 Iseseisev töö Electric cars Instructor: Tauris Vijar Tartu 2010 Introduction In this essay i´m write electric cars and this how these cars are built, how easy is built electric car, how much costs electric cars. The problems for electric cars, there are many problems why peoples still can´t use quiet and more green cars. But even the electric car is not all green because the electricity produced for nuclear, coal, oil shale and natural gas. These ways to get electricity pollutes nature, the only difference between lies in the fact that pollution is in the one place. Coal Electric power station Oil shale power station in Narva What is a electric car An electric car is a plug-in battery powered automobile which is propelled by electric motor
Joint Russian-EU program called "A Partnership for Modernization" was launched. The main achievement has been the fact that the talks on Russia's membership in the WTO have finally ended in Russia's favor. Another important achievement is the recently reached agreement which stipulates that no visas will be needed for short-term trips between Russia and the EU countries. In my opinion at one point of view, the EU is more interested because we have made more trade- offs. On the other hand as the EU is by far the biggest investor in Russia and the most important market for Russian exports, it is very clear, that the benefits, that Russia gets by preserving good relations with the EU, are their main interest. This means that both are equal partners. 2. What is the amount of yearly trade between EU and Russia? Which are the main groups of goods that are imported and exported? Which EU countries are the biggest trade partners for Russia regarding trade?
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