Forum www.bewet.fora.pl Strona Główna www.bewet.fora.pl
Wszystko o zwierzętach.
 
 FAQFAQ   SzukajSzukaj   UżytkownicyUżytkownicy   GrupyGrupy   GalerieGalerie   RejestracjaRejestracja 
 ProfilProfil   Zaloguj się, by sprawdzić wiadomościZaloguj się, by sprawdzić wiadomości   ZalogujZaloguj 

Mens Five Fingers Bikila Resources For Alternative

 
Napisz nowy temat   Odpowiedz do tematu    Forum www.bewet.fora.pl Strona Główna -> Konkursy.
Zobacz poprzedni temat :: Zobacz następny temat  
Autor Wiadomość
0411hjplk




Dołączył: 11 Kwi 2011
Posty: 36
Przeczytał: 0 tematów

Ostrzeżeń: 0/5
Skąd: England

PostWysłany: Sob 4:16, 16 Kwi 2011    Temat postu: Mens Five Fingers Bikila Resources For Alternative

trend toward homes that are powered by green energy sources, ranging from wind turbines and solar collection cells to hydrogen fuel cells and biomass gases, is one that needs to continue into the 21st century and beyond. We have great need of becoming more energy independent, and not having to rely on the supplying of fossil fuels from unstable nations who are often hostile to us and our interests.
Wind energy has become the most-invested-in (by private investors and governments together) green energy source for the time being. The great arrays of triple-bladed windmills are being placed all over as wind farms, to capture the motion of the wind and use its kinetic energy for conversion to mechanical or electrical energy. Of course, there is nothing new about the concept of a windmill for harnessing energy. Modern wind turbines are simply are more advanced variations on the old theme. Of course, the drawback to wind energy do you do when there is a calm,[link widoczny dla zalogowanych], still day? Needless to say, during these times the electric company kicks in for powering your home or office. Wind energy is not altogether independent.
One of these is solar power. Solar power is driven by photovoltaic cells, and these are progressively getting less pricey and more advanced. Solar energy power can be used for electricity, heating, and making hot water. Solar energy produces no pollution, as its input comes completely from the sun's rays. However, much more work still needs to be done in order for us to economically harness the sun's energy. For the time being, the resource is a little too conditionalstorage batteries are needed to be used as backups in the evenings and on inclement days.
Hydroelectric energy is available as a source of green energy, and it can generate a substantial amount of power. Simply put, hydroelectric energy uses the motion of waterits flow in response to gravity,[link widoczny dla zalogowanych], which means downhillto turn turbines which then generate electrical energy. Needless to say, water is ubiquitous; finding sources for driving hydroelectric turbines is, therefore, not much of a problem. However, hydroelectricity as a source of green energy can be complicated and expensive to produce. Dams are often built in order to be able to control the flow of the water sufficiently to generate the needed power. Building a dam to store and control water's potential and kinetic energy takes quite a lot of work, and operating one is complex as well, and conservationists grow concerned that it. Of course, a dam is not always needed if one is not trying to supply the electrical needs of a city or other very densely populated area. There are small run-of-river hydroelectric converters which are good for supplying neighborhoods or an individual office or home.
Probably the most underrated and under-appreciated form of alternative energy is geothermal energy,[link widoczny dla zalogowanych], which is simply the naturally-occurring energy produced by the heating of artesian waters that are just beneath the earth's crust. This heat is transferred into the water from the earth's inner molten core. The water is drawn up by various different methodsthere are dry steam power plants, flash power plants, and binary power plants for harnessing geothermal energy. The purpose of drawing up the hot water is for the gathering of the steam. The Geysers, approximately 100 miles north of San Francisco, is probably the best-known of all geothermal power fields; it's an example of a dry stream plant.
Waste gas energies, which are essentially methane, reverse the usual energy-pollution relationship by creating energy from waste that lies in the dumps and from some air pollutants. This gas is used in fuel cells and can be used in standard gasoline generators.
Ethanol is a gasoline substitute and is created from such things as wheat,[link widoczny dla zalogowanych], sugarcane, grapes, strawberries, corn, and even wood chips and wood cellulose. There is controversy over this fuel with regards to its always becoming truly economical or practical except in very locali


Post został pochwalony 0 razy
Powrót do góry
Zobacz profil autora
Wyświetl posty z ostatnich:   
Napisz nowy temat   Odpowiedz do tematu    Forum www.bewet.fora.pl Strona Główna -> Konkursy. Wszystkie czasy w strefie EET (Europa)
Strona 1 z 1

 
Skocz do:  
Nie możesz pisać nowych tematów
Nie możesz odpowiadać w tematach
Nie możesz zmieniać swoich postów
Nie możesz usuwać swoich postów
Nie możesz głosować w ankietach

fora.pl - załóż własne forum dyskusyjne za darmo
Powered by phpBB © 2001, 2005 phpBB Group
Regulamin