How Do You Find Renewable Energy?
November 6, 2009 by Go Green Tips · Leave a Comment
We already know that the use of electricity, gas and coal are all resources that we may eventually run out of. These are the non-renewable resources that we rely heavily on today. We use these non-renewable resources to do many things, including supplying us with power, heating our homes, businesses and schools and more. When we use all the non-renewable resources up and there are no more to gather, then what? How will we go without the convenience that we are so accustomed to? It’s nice to flip a switch to get power and it is even better when the latest technology allows us to press a button to do all the things that women and men had to work for hours to accomplish. We are fortunate to live in a world with so many modern gadgets. Unfortunately when we lose it we may be so accustomed to the modern perks that we will not know what to do when we don’t have them any longer.
What we have to rely on in the future is renewable resources. These resources are all resources that offer us an abundant supply and will never run out. They recharge and allow us to enjoy them again and again. The renewable resources consist of Solar, Wind, Biomass, Hydrogen, Geothermal, Ocean, and Hydropower We need all of these and right now we have access to each one of them. What do they do and how do they help us with solar power? Let’s find out.
Solar refers to the solar energy that we get everyday either directly or indirectly from the sun. Solar energy can be used for several things, such as heating, electricity to home, schools, businesses, or buildings, heating water, cooling and ventilation.
Wind helps the suns heat down to earth. When the wind combines with the heat of the sun, it causes evaporation. When the water turns into precipitation it produces energy that can then be captured by hydropower.
Hydropower takes energy from flowing water and captures it turning it into electricity. Hydropower is very complicated and requires a great deal of technology in order to successfully accumulate energy from water.
Biomass is an organic matter that can help to make up the plants. It can be used for the production of electricity, transport fuels or chemicals.
Hydrogen is the most abundant element found on earth, usually with other elements. If hydrogen is found alone it can be burned or converted into electricity.
Geothermal looks toward the inner parts of the earth for heat and can be used for power, heating, and cooling.
Ocean produces thermal energy using the heat from the sun. It can also use mechanical energy for the tides and waves.
As you can see the renewable resources are all around us. We know what they do and how we can use them. There are so many benefits to using renewable resources. If we don’t use them now we may not have a choice later. The knowledge we learn from today will help us use the energy more wisely.
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Vertical Axis Wind Turbine
November 6, 2009 by Go Green Tips · Leave a Comment
There are two different types of wind turbine; Vertical and Horizontal. Each one performs their own function and they each of their advantages and their disadvantages. You should pick the one that is best for you and your needs. They do have one thing in common and that is that they produce energy from winds. They just do it in a different way. Vertical axis turbine has the main rotor shaft running vertically instead of horizontally. This direction can have its advantages and disadvantages. The advantage is the gearbox can be put in the bottom of the turbine, unlike the horizontal turbines. All the weight is not at the top of the tower.
It also does not need to be pointed in the direction of the wind. The disadvantages of vertical axis wind turbines is that there can be pulsating torques that can happen during each turn when the turbine is running in the same direction as the wind. They produce a smaller amount of energy from the wind.
Different Types of Vertical Axis Wind Turbines
Windmill with a rotation sail. This type of turbine is the newest out there as it looks like sails on a ship once it is up and running. The sails can expand or contract to the changing winds. There is three sails on it and the speed is managed through magnetic counter that expands or contracts these vertical sails. It has a control unit that will help to control the sails so the damage will be minimal. The sails might tear but the frame is durable and will last through the storms.
Aerodynamic turbine is made up of airfoil base that is designed to capture the kinetic energy flowing from an artificial current to the center. It can utilize most of the air mass that passes through by redirecting it over the upper turbines. It can respond to wind and also rivers, creeks, oceans or other free flowing water systems.
Darrieus Wind Turbines are efficient but because of their size and shape they can produce cyclic stress on the tower which can wear it out sooner. It features three blades that work well in higher winds. They are held up by external structures that are connected from the ground up.
Giromill is a type of meal that features three vertical blades. It is self starting so the maintenance is low. These types of mills a low blade speed but they can create a high performance and success in channeling the energy from every turn of the blade.
Savonius Wind Turbine mills have two scoops that are used for wind conversion. Some do come in three scoops that make it self starting. They look like long helicopter blades that are bent in a direction. This style and shape is to provide enough energy to be adequate.
Windstar Turbines has straight aluminum blades that are attached on each end of the rotating shaft. This windmill features more than one rotor and they each have their own dual braking system that has pneumatic disc brakes. They are designed for strong powerful winds.
The advantages to running a vertical axis wind turbine is that they are easier to maintain and reduce cost, can withstand almost all wind, low high, smaller and easier to transport. The disadvantages are they take twice as much time to produce efficient energy from winds, need to be installed on flat land, low starting torque, some models use guyed wires which can add stress to the bottom. The design and the preference of the consumer make the best choice when it comes to choosing the right one for you.
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