..................................16 SIGNFICANT EVENTS IN THE HISTORY OF ENERGY BY FUEL.......................16 5.1 Signficant Events in the History of Energy Uses....................................................... 18 SAVING ENERGY ........................................................................................................... 20 ELECTRICITY .................................................................................................................20 7.1 The science of electricity............................................................................................21 7.2 Static electricity..........................................................................................................22 7.3 Magnets and electricity...............................................................................................22 7.4 Batteries produce electricity....................................................................................... 23 7
.......................... 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.................
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 that are in no danger of a lack of long-term availability. Some natural renewable resources such as geothermal power, fresh water, timber, and biomass must be carefully managed to avoid exceeding the worlds capability to displace them. Solar energy is the energy derived directly from the Sun. Along with nuclear energy, it is the most important source of energy on Earth. People usually use solar energy to produce electricity and heat. Wind power is the conversion of wind energy into a useful form of energy, such as electricity, using wind turbines
Under surface pressure and temperature conditions, lighter hydrocarbons methane, ethane, propane and butane occur as gases, while pentane and heavier ones are in the form of liquids or solids. However, in an underground oil reservoir the proportions of gas, liquid, and solid depend on subsurface conditions and on the phase diagram of the petroleum mixture. An oil well produces predominantly crude oil, with some natural gas dissolved in it. Because the pressure is lower at the surface than underground, some of the gas will come out of solution and be recovered (or burned) as associated gas or solution gas. A gas well produces predominantly natural gas. However, because the underground temperature and pressure are higher than at the surface, the gas may contain heavier hydrocarbons such as pentane, hexane, and heptane in the gaseous state. At surface conditions these will condense out of the gas to form natural gas condensate, often shortened to condensate
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
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. Electric cars are a variety of electric vehicle (EV); the term "electric vehicle"
- And Just Chadrick Overview- What is Green Energy? Different Types? What is sustainability? German Green Energy Cost and Efficiency Recycling What is Green Energy? -It is energy resources that are renewable -Can be naturally replenished -Clean, Safe and not harmful to the environment (aka mother earth) Types of Green Energy Green Energy going cute Solar Power · Is produced by using photovoltaic cells, which capture sunlight and turns that into energy. Problems ? -The sun has got to shine -The cost of solar panels and the systems range between $20k-40k -The light from the sun produces a very small amount of energy Wind Power -These giant pinwheels spin from strong winds which spins a turbine of a generator to produce energy. Giant Pin Wheels? Any Studies done? · It is said that wind · Bentek Energy did the
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?.................................................................
Life in Estonia through the eyes of an economics student I have been studying economics for a few months now and I would not say that my point of view on life in Estonia has changed. There are some things I recently started to look on differently but I am not sure is it because of TUT or not. Through my entire life I have seen Estonia as a strong and fast growing country which is also a fact because Estonian economy was one of the fastest growing in the world until 2006 with growth rates even exceeding 10% annually. I find it being quite impressive. There are some fields which Estonia can fill with supplies by itself. We are nearly energy independent country, supplying over 90% of our electricity need with locally mined oil shale. Estonia has also an alternative energy sources such as wood and peat. I could call myself
Acid Rain Acid rain is any precipitation that is unusually acidic. It possesses elevated levels of hydrogen ions(it has low pH level). Acid rain is caused by emissions of carbon dioxide, sulfur dioxide and nitrogen oxides, which react with water molecules. 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
Tartu Miina Härma gymnasium Biogas The source of future energy Report Tartu 2010 Table of Contents Introduction......................................................................................................... What is biogas?................................................................................................... Producing process............................................................................................... Nowadays.........................................................................
and of NATO since 29 March 2004 Estonia has also signed the Kyoto protocol. Economy Estonian economy was one of the fastest growing in the world until 2006 with growth rates even exceeding 10% annually. Despite some concerns both in and outside of the country, the Estonian economy and its currency remained highly resilient and solvent. Until recent years the Estonian economy continued to grow with admirable rates. Estonian GDP grew by 6.4% in the year 2000 and with double speeds after accession to the EU in 2004. The GDP grew by 7.9% in 2007 alone. Increases in labor costs, rise of taxation on tobacco, alcohol, electricity, fuel, and gas, and also external pressures (growing prices of oil and food on the global market) are expected to raise inflation just above the 10% mark in the first months of 2009. In the first quarter 2008 GDP grew only 0,1%. The government made a supplementary negative budget, which was passed by Riigikogu
two countries: Brazil and the USA and in 2005, they together accounted for 80% of global ethanol production (Msangi et al. 2007; Zuurbier, 2008). While Brazil's biofuels production has grown steadily since the 1980s, then in the USA, the production started to hike in 2003 with the Renewable Fuel Standard legislation. In Europe, biofuels production started to rise in 2005, as depicted on figure 2. Figure 2. World biofuels production ( F.o. Licht's World Ethanol and Biofuels Report, 2006) Figure 3. Global biodiesel production projection (USDA, 2012). Biodiesel is mainly produced in Europe, but production in other countries is expected to increase. In Europe and the US, biofuels have been boosted with the government's goals to source certain percentage of transport fuel from biofuels and therefore biofuels production is heavily subsidised. For example, in the EU, by 2020, 10% of energy used in transport should come from biofuels
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
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
It increases risks and 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
alternative, Sunbutter, especially in China, the United States, the Middle East and Europe. In Russia it is probably the most wide spread snack.[citation needed] It is also sold as food for birds and can be used directly in cooking and salads. Sunflower oil, extracted from the seeds, is used for cooking (but is less cardiohealthy than olive oil), as a carrier oil and to produce biodiesel, for which it is less expensive than the olive product. During the 18th Century, the use of sunflower oil became very popular in Europe, particularly with members of the Russian Orthodox Church because sunflower oil was one of the few oils that was not prohibited during Lent. The cake remaining after the seeds have been processed for oil is used as a livestock feed. Some recently developed cultivars have drooping heads. These cultivars are less
either from Britain or France. It was especially a poignant time for Africa, as then British Prime Minister Harold McMillan articulated his now famous “winds of change” sweeping Africa. We had high hopes for Africa, for the Black race, that the insidious imposition of foreign rule on us, the looting of Africa’s natural resources by our colonial masters accorded us would be things of history. That is more than forty years ago. Unfortunately, the promise of independence has not been fulfilled. Today, Africa has become more desolate; there is more starvation, diseases and non-provision of essential services than when we got our independence. There are all kinds of wars in Africa than the rest of world put together. The majority of so-called Africans leaders want to stay in power until the day their bodies are put in the grave
Nuclear Power: A Burden or a Blessing? Today, when the pollution of Earth is an important matter, people are trying to find economic solutions to produce power. This is where the necessity of nuclear power plants comes in question. Nuclear power plants are a cheap way to generate electricity but it also brings a lot of pollution that is much more radioactive and toxic than, for example, coal waste. But if we are looking at the facts, burning coal pollutes the Earth much more than nuclear power plants because more waste is generated. CO2, which is released from burning coal, is the main cause of global warming. Nuclear waste is collected and hidden in rocks or under ground, where it won't face the environment. However we shouldn't depend on nuclear energy as Uranium reserves are ending,
ERLE MAIDO TAAB11 Report Purpose The purpose of this report is to give an overview of Estonian population, political factors, technological factors, economic factors and the trends in Estonian economy compared to Germany and to briefly discuss Estonian business environment. Estonian population The total population of Estonia is 1 313 271 according to Statistics Estonia, of which 69.1% are Estonians, 25.1% Russians, 4.9% of which are of different nationalities for example Ukrainians, Belarusians and Finns. Rest are of unknown nationality. 68
Standard for our Against Animal Testing policy. And we have our own fair trade programme called Community Trade, making us the only cosmetics company with such an extensive commitment to trading fairly. Community Trade now works with 31 suppliers in 24 countries, providing over 15,000 people across the globe with essential income to build their futures. The Body Shop is a leader in the trend towards greater corporate transparency, and we have been a force for positive social and environmental change through our lobbying and campaigning programmes around our five core Values: Support Community Trade, Defend Human Rights, Against Animal Testing, Activate Self-Esteem, and Protect Our Planet. We also have our own charity, The Body Shop Foundation. Launched in 1990 (registered charity no. 802757) we give financial support to pioneering, frontline organisations that otherwise have little hope of conventional funding. The
the advancement in spacecraft related research. The purpose of this essay is to explain what a railgun is and how it works along with a little history and the recent advancements in railgun related science. 3 1. What a railgun basically is A railgun is an electrically powered electromagnetic projectile launcher and a large electric circuit, made up of three parts: a power source, a pair of parallel rails and a moving armature. Along the pair of parallel conducting rails a sliding armature is accelerated by the electromagnetic effects of a current that flows down one rail, into the armature and then back along the other rail. Railguns have long existed as experimental technology but the mass, size and cost of the required power supplies have prevented railguns from becoming practical military weapons.
Since the invention of the internal combustion engine, automotive engineers, speed junkies and racecar designers have been searching for ways to boost its power. One way to add power is to build a bigger engine. But bigger engines, which weigh more and cost more to build and maintain, are not always better. Another way to add power is to make a normal-sized engine more efficient. You can accomplish this by forcing more air into the combustion chamber. More air means more fuel can be added, and more fuel means a bigger explosion and greater horsepower. A turbo/supercharged engine produces more power overall than the same engine without the charging. Both superchargers and turbochargers do this. The difference between the two devices is their source
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 Bush to accept climate change as a real and happening phenomenon
The Chernobyl accident in 1986 was the result of a flawed reactor design that was operated with inadequately trained personnel. The resulting steam explosion and fires released at least 5% of the radioactive reactor core into the atmosphere and downwind. Two Chernobyl plant workers died on the night of the accident, and a further 28 people died within a few weeks as a result of acute radiation poisoning. The April 1986 disaster at the Chernobyl nuclear power plant in the Ukraine was the product of a flawed Soviet reactor design coupled with serious mistakes made by the plant operators. It was a direct consequence of Cold War isolation and the resulting lack of any safety culture. The accident destroyed the Chernobyl 4 reactor, killing 30 operators and firemen within three months and several further deaths later. Acute radiation syndrome was originally diagnosed in 237 people on-site and involved with the clean-up. Of these, 28 people died
Dear Sir/Madam, I am writing in the hope that you can help me with a problem regarding a camera that I have bought recently. On 24 April, I purchased a Canon digital SLR camera from a duty-free shop at Freetown Airport on my way from Freetown to Wondercity. The camera cost $599, and I paid for it by credit card. When I arrived at my hotel in Wondercity almost 24 hours later, I discovered that the box which contained the camera did not include the battery, and the space in the box for the charger was empty. I am now in Wondercity, and I am not returning to Freetown, so I need to get the missing parts here. I would be grateful if you could arrange for the parts to be sent to me. I attach a copy of the receipt for your information.
The Estonian economy is diverse industry and transport, as well as commerce and different branches of services are all equally important. Due to the available natural resources Estonian economy largely relies on the branches related to the forest; Estonian energy sector is based on oil shale. Finland and Sweden are the most important trade partners. The Estonian economy profits significantly from the business generated by more than 2 million tourists a year. The important sectors of the Estonian economy are the processing, transport, warehousing and communications, commerce and estate, rental and letting, as well as business services, agriculture, construction and government, education and health care. In order to be able to import all the products and services, something must be exported, that's why export holds such a prominent position for the Estonian economy and its growth.
the summer and descend to a chilly -25 degrees Celsius during winter. Canada's climate and environment are one of the main reasons that Canada is such a succesful country. The blend of natural resources and climate sustains us. The seasons dictate the look of the land: according to whether the natural environment is in a state of dormancy or growth. Canada's climate is characterized by its diversity, as temperature and precipitation differ depending on where you are and what time of year it is. Other than the North where it's above freezing for only a few months a year, most Canadian cities are within 300 km of the southern border, where mild springs, hot summers and pleasantly crisp autumns are common during the majority of the year. Climate sculpts the landscape through heat, cold, humidity, light and wind. In Canada, the variety of landscapes shows the diversity of our climate. In the north, low precipitation and cold
Estonian Economy Estonians earn about half of the average European income, despite the fact that the economic growth during the recent years has been very fast and the differences have been diminishing. Although the extremely vigorous period of economic reforms is now over, the changes that Estonia is presently going through are far more extensive than those in the developed countries. The Estonian economy is diverse industry and transport, as well as commerce and different branches of services are all equally important. Due to the available natural resources Estonian economy largely relies on the branches related to the forest; Estonian energy sector is based on oil shale, a resource quite rare elsewhere in the world. Finland and Sweden are the most important trade partners. The Estonian economy profits
The small coat of arms is identical but without oak branches. Parliament, government and president. Estonia is a constitutional democracy, with a president elected by its unicameral parliament (elections are held every four years). The government or the executive branch is formed by the prime minister, nominated by the president, and a total of 14 ministers. The government is appointed by the president after approval by the parliament. The legislative power lies with the unicameral parliament, the Riigikogu or State Assembly, which consists of 101 seats. Members are elected by popular vote to serve four-year terms. The supreme judiciary court is the National Court or Riigikohus, with 19 justices whose chairman is appointed by the parliament for life on nomination by the president. Internet voting has been used in local elections in Estonia. The lawmakers in Estonia have authorized internet voting for parliamentary elections as well.
It originates from Denmark. It was officially adopted in 1925. Geography Estonia is the northernmost of the three Baltic States. It is located on the northern hemisphere on the eastern shores of the Baltic Sea in the north-east of Europe. It has land contact with Russia from the east and Latvia from the south. In the north The Gulf of Finland separates Estonia from Finland. The Gulf of Riga is situated to the south-west. Estonia has more than 1500 islands. The biggest ones are located to the west. The four biggest islands are Saaremaa, Hiiumaa, Vormsi and Muhu. The highest point in Estonia and also in the Baltic region is Suur Munamägi. It is 318. above sea level. Estonia is a country of a thousand lakes. The Largest one is Lake Peipsi which is also the fourth biggest freshwater lake in Europe. Lake Peipsi and Lake Võrtsjärv are rich in fish. Estonia has many rivers but only nine of them are longer than 100km. The most important
down to read the signs All the signs are multilingual ,due to high percentage of English speakers Forests Ireland has only about 8 % of his whole land covered with forests. Centuries ago people cut the forests and didn't think about the future so nowadays there is mostly peat ( turvas) which Ireland uses to produce energy. Economy Ireland had a big economic boom in the late 20'th century, but now the Republic of Ireland is ranked the second wealthiest per capita country in the European Union. Education in Ireland is free at all levels, including college. The construction sector, which is inherently cyclical in nature, now accounts for a significant component of Ireland's GDP. ( ehitus/tõõstus sektor, mis on loomupäraselt tsükliline , mängib nüüd iirimaa GDP's märkimisväärset rolli - GDP =SKT ) In 2005, Ireland was ranked the best place to live in the world, according to a quality of life assessment ( hindamine ) by Economist magazine.
Estonia has over 1500 islands, the largest being Saaremaa and Hiiumaa, Muhu and Vormsi. Saaremaa and Muhumaa are connected to each other with a bridge. The best- known smalles islands are Naissaar, Aegna, Ruhnu, Kihnu, Väike-Pakri, Suur-Pakri etc. 3. Relief Lying in the north-western part of the East-European Plain, Estonia is mostly flat with an average elevation of about 50 metres above sea level. South-eastern and eastern parts of Estonia are higher than the western parts. The relief of the present-day landscape was shaped during the Ice Age. Ice sheet has carried large boulders and limestone blocks here, not to mention that the hilly terrain in Estonia was also shaped by the continental ice and the melting water. The land is rising 25 cm every one hundred years. In folklore, many features of the relief are explained by the activities of giants such as the legendary national hero Kalevipoeg
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