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Transcript of Eco houses
plastic, rubber, and wood fiber. These shingles are much, much more durable than regular shingles and look like normal ones too. Shingles can also be painted white or black (or even be made to switch between the two automatically!) to absorb or reflect heat and light when needed. Recycled Plastic Lumber (RPL) Recycled plastic lumber is a wood-like product that can be used as a substitute for concrete, wood, or metal. RPL is safer than regular wood (clean, nontoxic, nonporous, splinter-free, does not crack, doesn't absorb bacteria like wood) and also has other advantages, such as not needing pain (can be colored during manufacturing), and being flexible. Energy MOO. Energy is an important element in green building. There are many types of energy that are green and energy efficient. MOO. MOO. Geothermal Energy Solar Energy Every hour, the Sun sends more energy to Earth than the world uses in a year. Solar energy technology is clean, renewable, pollution-free, and noise-free. Photovoltaic cells (a.k.a. solar cells/panels) can be installed on rooftops or can even be built into the shingles or windows. There are also solar power plants, which use the sun's power to generate electricity. There are two types of solar power plants. active and passive. On way is to use the sun's energy to boil water, which becomes steam and turns a steam turbine. Another way is to use large mirrors to boil oil, which heats water and turns a steam turbine. Passive solar power plants use the sun's heat. For example, they can release energy gathered during the day at night to heat the house. Also, absorbent plates touching water can capture the sun's heat and heat water. However, solar energy is slightly expensive and is not available all the time. Wind Energy Most of the world's wind energy is produced at large wind farms by turbines hundreds of feet tall, but people can have their own personal wind turbines too. These can range from 7 to 25 feet in diameter, and are built to take advantage of smaller wind gusts that are more common in urban areas. They can produce between 300 and 10,000 watts (enough to power most of the lighting and small appliances in the average home.) Since home wind turbines are so small, they don't have many of the problems that people have with large wind turbines. They don't look ugly, make as much noise, or have as high a chance of hurting flying creatures. However, wind energy is not always available. Geothermal energy is energy that comes from the natural heat inside Earth. One way of using geothermal energy a geothermal pump. Since the upper 10 feet of the Earth's surface has a mostly constant temperature, a geothermal pump heats the house in the winter and transfers some of the house's heat back into the ground in the summer. Another method is to pipe geothermal water that has been heated by the Earth up to the surface where it can directly be used to heat buildings. To generate electricity from geothermal water, the water is piped up to a turbine. The hot water evaporates and the rising steam rotates the turbines, producing electricity. Geothermal energy has very few harmful emissions, is less expensive than most fuel sources, and is available anytime. The only downsides are that geothermal energy production realeases some hydrogen sulfide, and that some geothermal fluids that contain small amounts of toxic materials have to be disposed of. House Design There are many ways to design houses so that the shape of the house naturally helps with heating and cooling.
- One common method is an A-frame house. A-frame houses prevent snow and debris buildup on the roof, lowering maintenance costs. They also conserve heat and deflect light.
- South-facing windows take advantage of the sun's warmth. Before long, houses that use eco-friendly energy sources, architecture, and landscaping will be normal.
Now that you've seen the benefits of green building, you can see that it helps everyone: the house's owner and the environment. Thanks For Watching