Open Loop Solar Water Heater.

Open loop solar water heater is common in the Southern United States and Tropical Climates. Open loop solar water heater system consists of solar collector installed on the roof and a hot water storage tank usually located in the garage or utility room. An open loop solar water heater consists of alternating current (A/C) pump that circulates the water from the tank up to the collector and back. The Open loop solar water heater system is referred to a direct because the sun’s heat is transferred through the collector directly to the potable water. No antifreeze solution or heat exchanger is required.
The Open loop solar water heater System utilizes a differential control to sense the temperature differences between water leaving the collector and the coldest water in the bottom of the storage tank. The control of an open loop solar water heater turns the pump on when the water in the collector is about 20F warmer than the water in the tank. Similarly, the pump is turned off when the temperature variation is approximately 5F. This process ensures that the water is always being heated while the pump is operating.
A thermally operated valve is in-stalled in an open loop solar water heater at the collector of an Open loop solar water heater to provide freeze protection where required. This valve will open to let warm water flow through the collector whenever temperatures approach freezing. As an alternative, the collector can be manually drained by closing the isolation valves and opening the drain valves of the Open loop solar water heater.

TINY WIND TURBINES

Talking about wind energy what comes first in our minds is the larger then life colossal wind turbines and wind energy farms. Think again! Why not tiny wind turbines, charging our electric gadgets, watches, torches and at times our lights and cell phones. We have developed tiny solar powered chargers, MP4 players, and street lights.
As the world focuses more and more on wind energy and wind turbines for power generation, but wind turbines are never considered tiny as long as they are not made out of paper. All this is changing now in the past 2 years we have seen quite a few applications being powered by tiny wind turbines, although most of these are either decorative or in research phase but some of these tiny wind turbines are made for real life power production and are quite astonishingly proving handy.

Take a look at this tiniest, tiny wind turbine, this 2.4 inch rotator blade blow on toy lights its one green and two blue LED lights when blown at. This tiny wind turbine toy can be a great gadget to introduce enthusiasm among the young ones about renewable energy. No charging or batteries are requires as this tiny wind turbine is absolutely self sufficient. Instead of lighting up a lighter in a concert just use these tiny wind turbines during the ballad and pass an eco friendly massage in a silent manner.
£9.99! @ Nigel’s Eco Store.

-------------------------------------------------------------------------------------------------

This little rotating devil is my favorite by HYmini, this tiny wind turbine is installed in a device that make it a personal wind energy portable cell phone charge. Walk, jog just attach this with your arm or fix it with your handle while riding your bicycle. It’s ideal for camping and outdoor activities, as well as those days when you are nomadic: in and out of trains, cabs, or airports. Better yet, it can be combine with solar panels or even when there is just no wind around.
HYmini is offering these along with straps and charging pins for $ 49.99 + another $10 for accessories.

-------------------------------------------------------------------------------------------------
There is a tiny wind turbine in this watch by High-end watchmaker Urwerk , who is bringing new meaning to the term “tiny wind turbines” by replacing the traditional self-winding mechanism in their UR-202 watch with miniature wind turbines. While this small scale turbine installation isn’t solving any energy crisis, it is a step towards better design, and a wind-driven move that extends the life of this distinctive timepiece. While we’ve seen wind turbine technology in many forms, from large, powerful designs that can power neighborhoods, to small hand-held devices that can charge your mobile gadgets, we can’t recall any innovation that used wind power in such a small (yet significant) detail.
The UR-202 uses compressed air generated by the tiny wind turbines to regulate the winding mechanism. With traditional self-winding watches use a slipping mainspring to prevent over winding. The main rotor, which is constantly moving back and forth (as the user moves his arm), tends to wear as time goes on, due to the friction generated as it winds. What the tiny wind turbines do is to regulate the velocity of the winding rotor to ensure that it doesn’t spin too fast, or too slow. In principle, this will extend the life of the winding mechanism, not exactly revolutionary in the big picture, but cool nonetheless. The watch is certainly distinctive enough, and has a number of features which make it quite interesting, and a little intimidating.

All these tiny wind turbine are another stem towards, Next generation wind energy.

Floating Wind Turbines

Wind turbines floating in the sky may sound like an absurd idea, but absurdness of this bizarre new concept in the field of wind energy is the beauty of the concept itself. Like most developments in the felid of renewable energy, floating wind turbines came with simply a concept backed by the fact that energy is all around us we just need suitable and sustainable means to harness it. We all know that there is a steady wind for consistent production of energy some where above 600 to 1000 feet above ground level, but to put a wind turbine at 1000 Feet on a pole is not only expensive but also quite hard to maintain.
Magenn Power of Ottawa has developed a prototype of these floating wind turbines, and they are calling it MARS (The Magenn Air Rotator System). MARS is a blimp that floats with the aid of helium gas and is connected to grid stations with a series of cables. Centrifugal turbines mounted on both ends of the MARS and these floating wind turbines start producing, clean renewable energy. Floating wind turbines produce double the average production of conventional wind turbines as the winds at 1000 feet are steady and more productive.
Floating wind turbines not only thumps conventional wind turbines with there low impact ability but also are much easier to maintain. Mobility of floating wind turbines is another remarkable feature which makes this technology tremendously practical in times of emergency. These amazing floating wind turbines can be easily installed for instant power availability at disaster struck sites.
Floating wind turbines research and development is promising 40 to 50 % efficiency compared to the conventional wind turbines as the double production capacity of a single unit is possible. Farms of floating wind turbines can be placed near the demanded area and this can save on cable cost and line loss.
Conventional wind turbines only produce energy in wind speeds between 3 meters/sec and 28 meters/sec. Magenn’s floating wind turbines (MARS) should start production between 1 meter/sec and in excess of 28 meters/sec.
These floating wind turbines can be easily raised to different heights between 400ft-1000ft, thus capitalizing of stable and speedy winds will be very much possible.
Critics talk of hazardous these floating wind turbines might bring for air traffic, but air traffic is not some play station game any more every new development is update with aviations world wide. Some say that these floating wind turbines might break down and fall, disasters strike but can be controlled as well, as with such huge investments backups are always designed.
Another type of floating wind turbines is under research by Sky Wind power Corporation. These floating wind turbines will use helicopter technology to reach desired heights and stay afloat, now these heights can be 30,000 feet up in the jet stream where the wind is strong and steady, Sky Wind power Corporation, envisage clusters of these floating wind turbines, as many as 600 units, generating as much as 12,000 megawatts, far more than your typical nuclear plant.
Floating wind turbines might prove to be the next generation of wind energy, making it a flexible source of renewable clean energy ready to install in remote areas, according to Magenn Air Rotator System, first batch of these floating wind turbines should be launched soon for sale fit for domestic use.