Archive for 2010
Types of alternative energies
In view of our country is island nation that is rich in sea.
Low tide and sea water as we used in the days of elementary school, a consequence of gravity will pull the moon learned that the water in the oceans of the world. On the side close to the sun, the water forming a bulge through the style. Now that the rotation of the earth on its axis each day, the ridge be “above”the sea around the globe.
It is estimated that the energy reached a capacity of 1000 GW this tide. Oh my goodness!
Europeans use tidal energy to grind wheat. It was during the Middle Ages.
How it works
How to capture energy from the tide of this a number of large turbines at sea is to be installed. Storage in an area that has strong tidal currents. The location could be in straits between the islands or in the surrounding headland.
Project ever, and already there
Building La Rance in Brittany generate 240 MW for the last 30 years
Severn Project in the UK is projected to generate 9 GW, but not because of the fund.
Mechanics of tidal energy
Energy from the sea
Marine energy has two types of thermal energy from the sun’s heat energy and mechanical energy from tides and waves.
More than 70% of the earth’s surface is ocean, it makes the oceans as the largest collector of sunlight on the earth. The sun heats the surface water is higher than in the deeper ocean, and this temperature difference energy-saving heat / thermal. This thermal energy can in many ways, are used inter alia as a power plant. There are three types of conversion systems commonly used in thermal energy use of a closed cycle, open cycle, and hybrid.
Closed circuit to vaporize the use of warm surface sea water, a working fluid that a low boiling point, such as ammonia. Subsequent steam expands and drives the turbine. The turbine activates a generator to produce electrical energy. Now operating open-cycle system by boiling sea water at low pressure, the steam drives turbines and generators work produced. While the hybrid system is a combination of open and closed loop system.
The mechanical energy of the sea is different from thermal energy. Although the sun affects all ocean activity, but the pull of the moon is the most important generator tidal forces of the sea, while the wind is the main generating force of the waves. Dams are typically used to convert tidal energy into electrical energy by passing the water through turbines and generators. How to convert wave energy, there are 3 (three) basic system of the canal system that channels waves into a reservoir or pool, float systems, hydraulic pumps and oscillating water column systems that use the waves for air to move in a container. Mechanical energy from the existing systems allow the generator directly or they will transfer into the working fluid, water or air, which in turn will drive the turbine or generator.
The total power of surf on coastlines in the world is estimated at 2-3000000 megawatts. In some places, very good condition, the wave energy density reached the price of an average 65 megawatts per mile of coast. There are 3 ways to capture wave energy, namely:
With the buoy, where the tool will flow from the vertical and rotational movement of the buoys to generate. This tool can be moored on a floating raft or a device anchored to the seabed.
Oscillating water column (oscillating water column). This tool generates electricity from the rise and fall of the water by waves in a hollow cylindrical tube. Rise and fall of the water column is left and lead the entry of air at the top of the pipe hole and turn the turbines.
This unit also commonly known as cone or tapered channel or channel called tapchan system, mounted on a channel structure on the beach, to focus the waves was built, took him into the pool of storage tanks. The water that flows out of these ponds are used to generate electricity by using standard hydropower technologies.
Sound Energy Power Station
In this world so many types of energy. This energy can be converted into other energy forms. For example, electrical energy. This energy comes from the potential energy of a waterfall, later light and heat energy.
One type of energy is sound. Why can sound be used as energy? Want to know the answer? Continue reading dong statement.
Well, every time we need to listen to the voice. Whether it is singing to the sound of music, the sound of the birds dropped into the sound of passing vehicles or even the sound of water. In essence, the voice is overwhelming in this world. Whether it is the sound produced by a natural or willful misconduct.
Techniques for storing the sound is very fast. If the first is still stored in the analog sound, the sound can now be stored in digital form. Now, these voices can be enjoyed in addition, can sound be used as a source of energy power plants.
Sound Power
How could you? Yes, it could be. Since the voice is also a form of energy that can be converted or transformed into electricity. For example, a microphone (MIC). This tool can detect sound waves into electrical current.
So how can sound be a powerhouse? There are different types of technology used could make the sound as the power plant, is one of them with a tool called a sensor array.
This tool can contain many sensors Sound Catcher. able sensors detect that voice a microphone that can produce 100 megawatts of electricity. In addition, you can also put the sound sensor on the roadside, near the factory machinery or near splashing waterfalls.
By sensors at certain points, you can advantage of the sound produced take on an energy power plants.
Weaknesses Sound Power Station
Sound energy is like a power plant has several weaknesses, among them are as follows.
1. Must be near the noise source or noise source. For example, you have a sound generator module, which used to generate electricity your home, then at home would be ideal near the source of the sound feed (noise), so that electricity can be generated.
2. The availability of the sensor device is still rare and expensive.
3. Little energy. Unlike wind power, the power may be larger.
Well, now you know if the sound can be used as an energy power plants.
Muscle energy technique for hamstring
A muscle energy technique is a method you use to be able to strengthen weak muscles, increase or improve just short muscles muscle range of motion. After the massage therapy 101 web site, these techniques extends during the integration of the reciprocal force to the targeted muscle collected for short periods, thereby relaxing the muscles and stretch more. After the massage therapy on site 101, this technique imposes a reciprocal force on the muscle for short periods of time-related strain, which relax the muscles and stretch further. You can use this method to use almost every muscle in the body, including the Achilles tendon. You can use this method for almost all the muscles in the body, including the Achilles tendon. This technique doses are easily carried out alone or with a partner. This technique can be performed easily by yourself or with a partner.
Solo Solo Stretch Stretch
1. After a detailed strategy for the pain clinic site, lying on your back with one knee bent with the foot flat start on the floor. According to the strategy in the pain clinic site, you start lying on your back with one knee bent, detailed with the feet on the ground. Bring the other leg straight up in the water (or as straight as you think cans) and make it as close to the calf or ankle as possible to slow it toward the face. Attach the other leg up in the air (or as straight as you can save it) and may be as close to the calf or foot, slowly bring to the face. Once your leg feels as if it can not be extended, apply pressure by acting on the opposite direction (away from your face), without moving your leg that from that point. As soon as your feet will feel as if they are not withdrawn again, pressure by you against the opposite direction (away from your face), not that you move your legs in this position. Take a deep breath in, hold the water in the lungs for five seconds as you continue to hold this position. Take a deep breath, holds air in the lungs for five seconds as you continue to hold this position. After five seconds, exhale quickly as you slowly pull the leg back towards the face (you should be able to get closer to your face as you were the resource persons before). out after five seconds, rapid breathing, and how to slow the leg back towards the face (you should be able to get closer to your face than before). Repeat this process three more times. Repeat this process three more times.
Do use a Partner
2. A muscle energy technique simply more cans to be practiced with a partner. A muscle energy technique can be easier to perform with a partner. If you have a partner, you can use a variation of the stretch you just by lying on the floor. If you have a partner, you can use a variety of routes that you can do yourself by lying on the floor. According to The Luklinski “Spine Clinic website Pls lift the leg to stretch you plan to leave the partner to it by supporting your ankle on the shoulder. Luklinski According to The Spine Clinic Web site if your legs are stretched to planning, so that partner to it by raising their ankle on his shoulder. He should slowly with pressure, until the leg to your face as close as possible, as it is from then print are in the opposite direction for five seconds while the leg in position, and the water in the lungs . keep Slowly have to apply pressure on until the foot is like your face as close as possible so it will apply pressure in the opposite direction for five seconds while you hold the foot in position and the air in the lungs. After five seconds, exhale as the partner gently moved the leg back to the original direction of the face (the leg should be able to get a little closer to your face each time). After five seconds, exhale as partners to move the foot back in the original direction of the face (legs position should be to get a little closer to the face each time). With another person in order to stretch the leg you are serious about allowing you to help focus all energy on the Achilles tendon itself. With other people to support your legs, you can focus all energy on the Achilles tendon itself. It will also allow for a better break because you canned the leg straight, even if it means Originally starting further away from the face. This is also for a better route because you can just save the leg, even if it means initially started further from the face. Repeat this process three more times. Repeat this process three more times.
A habit make it a habit
3. The leg should make significant progress in flexibility and mobility after a session, but the process every day until you achieve the desired effect. Feet must make significant progress in flexibility and mobility after a session, but the process every day until you reach the desired effect. You can even use this technique, usually called pre-emptive measures to prevent muscle injury in physical activities. You can even use this technique frequently used as pre-emptive effort to prevent injury to muscles during physical activity.
Sources of muscle energy
Sources of muscle energy derived from ATP reserves in the muscle and
Resistance ATP is derived from:
• Fosfokreatin
Is a high-energy phosphate compounds
in high concentrations in the muscles. The procedure requires no
Oxygen-free and the number is small.
• Release of glucose
This process is a process now the largest producer of ATP
fosfokreatin discharged or required amount of ATP in the time
be brief.
• Release of free fatty acids
This energy source in the state of rest and recovery period
according to to the working muscles .
• The mechanism of oxygen debt
During muscle work, dilated blood vessels and muscle blood flow
increases to be increased the supply of O2. Up to a point
In particular, O2 consumption increased in proportion to energy
issued, and all energy needs are met by methods
Aerobics.