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By: Paulo Adeva History Hydrogen Best Renewable Energy
Jenolan Caves The Jenolan Caves are located in the Blue Mountains, 175 km west of Sydney. The cave network is very large, with over 40 km of passages. Scientists has estimated the cave to be 340 million years old, making it the oldest and largest cave known. The Jenolan Caves was discovered by James, Charles and Alf Whalan in 1835. The brothers claimed that they found the cave while looking for a bushranger, James Mckeown. One of the lesser visited cavern was named Mckeown's Hole although there was no evidence of his existence. Cultural Importance Jenolan Caves are in the lands of the Burra Burra people. The boundaries of the Burra Burra stretch from Fish River to Campbell River. The Burra Burra people also have a totem, which symbolizes their group. Their totem can be found around the Blue Lake, just a short way from the cave. Jenolan Caves is also close to a sacred site of the Aboriginals and great offence is caused if it is interfered with. Solar Energy- comes from the sun and can be used for heating or lighting buildings, generating electricity and a variety of commercial and industrial uses.
Wind Energy- wind power is the coversion of wind
energy into a useful form of energy, such as using wind
turbines to make electrical power or windmills for
Hydrogen- most abundant element on Earth, but doesn't usually take the form of a gas. It's always combined with another element like oxygen to make water. Once separated from another element, hydrogen can be burned as a fuel or generate electricity. Different Energy Sources Available in Jenolan Caves Current Energy Source Jenolan Caves uses Australia’s first hydro-electric system, finished in 1917. The hydro-electric plant provides up to 60% of cave power needs, reducing our ‘carbon footprint’. Hydrogen is the best energy source for Jenolan Caves because hydrogen is high in energy, yet an engine that burns pure hydrogen produces almost no pollution. NASA has used liquid hydrogen since the 1970s to propel the space shuttle and other rockets into orbit. Hydrogen is also the most abundant energy source in the universe, but hydrogen almost never comes in the form of a gas. It's always combined with other elements. Water, for example, is a combination of hydrogen and oxygen. Hydrogen can be also separated from hydrocarbons like gasoline, natural gas, propane or methanol using the method of "reforming". Reforming is the process of heating the hydrocarbon which separates the hydrogen from the other chemicals and is currently the most effective way of separating hydrogen. An electric current can also be used to separate water into two of it's components of hydrogen and oxygen and this process is called electrolysis. THE END! But Why??? So why can't Jenolan Caves just keep using Hydroelectricity? Hydroelectricity is the power obtained through the use of the gravitational force of falling or flowing water. Hydroelectricity is a very environmentally friendly source of energy, producing no waste and emitting very low levels of greenhouse gases. However, obtaining the power means building dams and reservoirs. Damming interupts the flow of rivers and can harm local ecosystems and often involves displacing wildlife and people. The water also often takes higher temperatures, loses oxygen and gains phosphorous and nitrogen content. Thank You for Watching!!! Sources: www.renewableenergyworld.com en.wikipedia.org/wiki/Jenolan_Caves www.jenolancaves,org.au www.chemicool.com/elements www.library.thinkquest.org www.newscientist.com Eliminating Probabilities Solar Energy- solar energy is a great source for Jenolan Caves, but to power something at a large scale means having to use lots of solar panels. This means that the tourism of Jenolan Caves will go down because who wants to see a land of solar panels?
Wind Energy- wind energy also has the same problem as solar energy. To take wind energy you will need wind turbines and wind turbines require a lot of money, they are ugly and noisy and if the wind stops ther is no electricity.