Leidsid 33 sarnast õppematerjali, mis on seotud failiga "Solar power". Need materjalid aitavad sul teemat sügavamalt mõista.
power, solar, concentrated, electrical, electricity, light, heat, fourth, tanel, terras, basics, drives, engine, generator, method, radiation, direct, current, exhibit, effect, popularitySolar 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 CSP systems use lenses or mirrors and tracking systems to focus a large area of sunlight into a small beam. PV convert light into electric current using the photoelectric effect. Applications
..................................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
.........................................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................................................12 2.3. Hydroenergy.......................................................................................................13 2.4. Geothermal Energy............................................................................................14 2.5. Biomass Energy...................................
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
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
1)Main machinery On a ship, the engine room, or ER, is the propulsion machinery spaces of the vessel. To increase the safety and damage survivability of a vessel, the machinery necessary for operations may be segregated into various spaces. The engine room is one of these spaces, and is generally the largest physical compartment of the machinery space. The engine room houses the vessel's prime mover, usually some variations of a heat engine - diesel engine, gas or steam turbine. On some ships, the machinery space may comprise more than one engine room, such as forward and aft, or port or starboard engine rooms, or may be simply numbered. 1.1)Main engine The engine room of a motor vessel typically contains several engines for different purposes. Main, or propulsion engines are used to turn the ship's propeller and move the ship through the water
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
- 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?.................................................................
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 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
It was proposed by Joseph Fourier in 1824, discovered in 1860 by John Tyndall, was first investigated quantitatively by Svante Arrhenius in 1896, and was developed in the 1930s through 1960s by Guy Stewart Callendar. Solar activity Since 1978, output from the Sun has been precisely measured by satellites. These measurements indicate that the Sun's output has not increased since 1978, so the warming during the past 30 years cannot be attributed to an increase in solar energy reaching the Earth . The graphs show otherwise. Effects of global warming on oceans Global warming can affect sea levels, coastlines, ocean acidification, ocean currents, seawater, sea surface temperatures, tides, the sea floor, weather, and trigger several changes in ocean bio-geochemistry; all of these affect the functioning of a society. Impacts on society The rise in sea level along coastal regions carries implications for a wide range of
radiation lighting (magnetic fields) PHYSICAL HAZARDS Risk of fire and Noise in the working environment: electrical shock Physical Part I – Inconvenient indoor hazards Risk from climate sharp objects Vibration
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"
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. As a result, the two compounds travel long distances where they become part of the rain, sleet, snow or fog. SO2 and NOx come mainly from power stations and factories burning fossil fuels, or from motor vehicles. · Carbon dioxide in the air can dissolve in rain water to form carbonic acid, H 2CO3 CO2 + H2O H2CO3 · During the last century the rain water in some parts of the world has become far more acidic. This acid rain has been caused by the emission of pollutants gasses such as sulfuric dioxide, when goal is burned in electric power stations, sulfur impurities form sulfur
Floating Wind Turbines University of Tartu 2012 Featured topics Basic layout of wind turbines About FWT Technology and advantages Initiatives Conclusion Introduction to how wind turbines work Electricity Kinetic Click to edit Master text styles Second level energy of the wind Third level is converted to Fourth level mehanical energy. Fifth level Main parts 1. Rotor blades 2. Shaft 3. Generator Introduction to how wind turbines work Click to edit Master text styles Click to edit Master text styles Second level Second level Third level Third level
are most active. For most species it`s between 10°C to 35°C. But there are exceptions Hymenopterous parasites, flatheaded and roundheaded bark borers. Melanophila consputa Lec. Western pine beetle Dendroctonus brevicomis Moisture Forest insects are affected directly by moisture and indirectly by its effect upon their host Light Light plays an important part in regulating the activities of various insects. Trees exposed to the full sunlight are more susceptible to attack by certain flatheaded borers. Many moths are strongly attracted to light. Moths around a light Click to edit Master text styles Second level Third level Fourth level
Solowheel Mario Kallaste 12R What is Solowheel? Solowheel is an electrical standing unicycle that can be carried like a small bag. Created by Inventist, the personal mobility transporter has the dimensions of a single bicycle wheel and is used for transportation. Click to edit Master text styles Second level Third level Fourth level Fifth level The technology of Solowheel A 1,000-watt lithium-ion battery provides energy to the assembly, allowing you to ride for up to 12 miles on a single charge (around two hours at moderate speeds). Recharging the battery takes an estimated 45 minutes, so you can easily plug in at work to get your unicycle ready for the trip home later. The Solowheel uses gyroscopes to keep you upright the entire time.
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.
Click to edit Master text styles Second level Third level Fourth level Fifth level Tallinn University of Technology Tallinn 2012 Content What actually means Green IT? Origin Regulations and industry initiatives Approaches Green computing certifications Green IT Click to edit Master text styles environmentally sustainable Second level Third level
prospects of the biogas. I have tried to make this report as understandable as possible. By the end of this report I want to come to a conclusion whether biogas is the best source of future energy or are there any other sources that are better. What is biogas? Typically it refers to the gas produced by the anaerobic digestion or fermentation of organic matter including manure, sewage sludge, municipal solid waste, biodegradable waste. If opportunely refined it can be used for electricity production. Also for space-, water- or process heating. Unintentional production of biogases has been an ongoing issue in many regions of the world, and several nations have also looked to biogas as a potential source of clean energy. India and China have both invested extensively in creative biogas technology to provide fuel for their citizens and there are a number of interesting applications for this gas which appeal to people who are interested in
everything consumers think and do is influenced at unconscious levels and it will give you access to those deeper levels of thinking. What are these deep metaphors then? Seven main ones Balance Transformation Journey Container Connection Resource Control Balance Click to edit Master text styles Second level Harmony Third level Adjustment Fourth level Fifth level Transformation This involves a Click to edit Master text styles changing state or Second level Third level status, "turning Fourth level over a new leaf" Fifth level Journey
These Verbs are usually things you cannot see somebody doing. Non-Continuos Verbs include: Abstract Verbs. Possession Verbs. Communication Verbs. Sense Verbs. Emotion Verbs. Abstract Verbs examples: Click to edit Master text styles · I now realize that using the Second level internet is more useful. Third level Fourth level He loves her. · Fifth level Click to edit Master text styles Second level Possession Verbs examples: Third level Fourth level
Click to edit Master text styles Second level Third level Fourth level Fifth level Iron Maiden § English heavy metal band from Leyton in east London, formed in 1975 by Steve Harris & Dave Murrey § Named after a torture device. § 15 studio albums. § 11 live albums. § 4 extended plays. § 7 compilations. § Iron Maiden have sold over 85 million records worldwide § Over 2000 live peformances. § Their music has influenced dozens of famous bands, most notably
Pudding Lane and lasted for five days . London . London is an exiting city . The population of London is about seven million people and it is made up of the people of very many nationalities . There are nine piers where you can get a boat and enjoy numerous sights like .... The Tower of London Click to edit Master text styles Second level Third level Fourth level Fifth level St Paul ´s Cathedral Click to edit Master text styles Second level Third level Fourth level Fifth level The Houses of Parliament Click to edit Master text styles
Tallinna Tööstushariduskeskus Saturn Referaat Tallinn 2014 Sissejuhatus Saturn is one of the most interesting planets in the solar system. It is the sixth planet in the solar system, and is most famous for its stunning array of rings. It is a very easy planet to pick out in the sky because it is one of the brightest lights in the shy. It also has a very faint greenish color that makes it stand out from the rest of the objects in the sky ("Astronomy for Kids"). Saturn is the second largest planet in the solar system, Jupiter being the only planet that is bigger
Fully-equipped- Fully-furnished- Genuine- real, rather than pretended or false Glass front- Handle- to take action in order to deal with a difficult situation Hob- the top part of a cooker that you put pans on Hoist- to lift someone or something to a higher place Hold out- to hold something where someone else can reach it Hotel suite- Humble- from a low social class Inhabitants- a person or animal that lives in a particular place Insulated- to cover something in order to prevent heat, cold, noise, or electricity from passing through it Landing- the action of hitting the ground when you fall or jump from somewhere high Larder- a cupboard or small room where food is stored, usually in a kitchen Leafy- leafy trees or plants have a lot of leaves Leisurely- slow and relaxed light fitting - the part of a light that is fixed to the wall or ceiling, where you put the light bulb Light effects- Locks of hair-a small piece of hair from someone's head
Improved Windows for Cold Climates In this paper the possibilities of improving the energy performance of windows in cold climates are exam-ined. The background for using windows with improved energy performance is the need to reduce the en-ergy consumption in buildings. Since the heat loss through windows often represents half the total heat loss from houses, much energy can be saved by developing and using better windows with respect to energy performance. The main purpose of having windows in houses is that they provide daylight and view, but windows also provide solar gain that can be utilized as a contribution to the space heating in the building. Therefore the windows also have a positive influence on the energy balance of buildings.
v Hake- heik v Herring- heeringas v Mackerel- makrell Basic Information Seas around Ireland are: v The Irish Sea v The Atlantic Ocean v The Celtic Sea The Irish Sea v Separates the islands of Ireland and Great Britain v St George's Channel and the North Channel v Whales and dolphins v Radioactively contaminated sea The Irish Sea v Regional trade, shipping, transport, fishing and wind power v Twenty-one species of seabirds The Irish sea v Ireland has no tunnel or bridge connection to mainland Europe v Some cities around the Irish sea: Dublin, Liverpool, Blackpool, Southport, Brikenhead, Bray, Wexford, Larne, Belfast. v The sea is main way of shipping goods The Atlantic ocean v Is the second largest ocean in the world v The North Atlantic Ocean and the South Atlantic Ocean v
Diode. 2)Rectifier Diode. 3) A is called Anode and C is called Cathode. An Anode has positive potential and therefore collects electrons in the device. Cathode has negative potential and therefore emits electrons to anode. The symbol looks like an arrow that ponts from the anode to the cathode, and reminds that conventional current flows easily from the p side(anode) to the n side(cathode). BIASING. Forward biasing. If the current in a diode is too large, excessive heat will destroy the device. Even approaching the burnout current value without reaching it can shorten its life. Therefore manufacturer's data sheet specifies the maximum forward current, that diode can withstand. This average current IF is the rate a diode can handle up to the forward direction when used as a rectifier. Another entry of interest in the data sheet is the forward voltade drop UF(max) when the maximum forward current occurs. An usual diode has this value 0.7-2.0V. Diode conducts
Matsalu national park Matsalu National Park is situated in the western part of Estonia Click to edit Master text styles Second level Third level Fourth level Fifth level Goals To protect nesting, moulting and migratory birds Unique landscapes-floodplains, reed bed, coastal meadows, wooded meadows and islets Current situation Area-50 000 hectares, of which 30 000 hectares is covered with water There are 282 species of birds 49 species of fish 47 species of mammals 772 species of vascular plants
to measuring the inputs or generating the outputs. This in turn drives other parts of the design, such as allowable noise and the precision that is required of the components. A simple microprocessor-based system might read an analog input voltage and convert it to a digital value (how this happens will be examined in Chapter 2, “Digital-to-Analog Converters”). Dynamic range is usually expressed in db because it is usually a measurement of relative power or voltage. However, this does not cover all the things that a microprocessor-based system might want to measure. In simplest terms, the dynamic range can be thought of as the largest value that must be measured compared to (or divided by) the small- est. In most cases, the essential number that needs to be known is the number of bits of precision required to measure or control something. As an example, say that we want to measure temperatures between 0°C and 100°C
photograph or several is instantaneous. In addition, the cameras allow us to keep a record of a large number of important events, either of oneself or of important moments for the global history. As the saying goes, "a picture is worth a thousand words" 4 Uses of the Photographic Camera (SEBA) Camera obscura, the first camera was first mentioned by Chinese philosopher Mo-Ti in the 5th century before Christ. He formally recorded the creation of an inverted image formed by light rays passing through a pinhole into a darkened room. He called this darkened room a "collecting place" or the "locked treasure room." in 384-322 before Christ the optical illusion was understood by Aristotle. The crescent shape of a partially eclipsed sun projected on the ground through the holes in a sieve, and the gaps between leaves of a plane tree was viewed by him. Full account of the principle including experiments with five lanterns outside a
Clothing and feathers Native american dress Woodlands Native Americans wore clothes made from animal skins with the fur called pelts. They also used wild grasses to make skirts for women. Native American feathers are an important symbol of the Indian way of life. It is used to represent freedom, power, wisdom, honor, trust, strength, and much more. Feathers were seen in wardrobes, headpieces, adorning their homes, and tattooed on their bodies. Wigwam homes Wigwams are small houses, usually 810 feet tall. Wigwams are made of wooden frames which are covered with woven mats and sheets of birchbark. Longhouses
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