Due to the fact that the coolant flows directly through the pipe in the reservoirs they have, there are difficulties in the installation. Each tube should be connected to the system separately in order to avoid leakage of coolant. We need also serious maintenance, because leakage or mechanical damage even of one tube stops the work of collector. The vacuum tube consists of two glass tubes: outer is made from ultra strong transparent borosilicate glass that can withstand the impact of hailstones with a diameter of 25 mm, internal one is the same but with a special selective coating (A1-M/A1) that ensures excellent heat absorption with minimal reflection. In order to avoid conductive and convective heat loss from the space the air is exhausted between the two tubes.

To maintain the vacuum barium gas absorber is used, which is exposed to high temperatures in a production environment, resulting in lower end of the vacuum tube is covered with a layer of pure barium. It absorbs CO, CO2, N2, O2, H2O and H2, which are distinguished from the tube during storage and operation, and is a clear visual indicator of the vacuum. When the vacuum disappears, barium layer transforms into white from silver. This makes it easy to determine whether a pipe works correctly.

The absorption of heat occurs in the copper heat-pipe, which is located inside the vacuum tube. Method of heat transfer from its thermal conductivity is very simple.

Copper tube is hollow and contains a patented inorganic non-toxic liquid. When heated, the liquid evaporates, and because of the vacuum created inside of a tube, it occurs even at a temperature of 25-30

The Tube Solar Power Collectors: Key Aspects is a post from: Residential Power

The efficiency of terrestrial solar energy conversion to electricity depends on their efficiency and the annual number of sunny days. 20 years ago the efficiency of silicon solar cells was equal to 15%. The efficiency of today’s GaAs element with three transitions is 34%, while promising devices with four conversions will probably be of 42% (theoretical value of the efficiency of four-element reaches approximately 50%). Today, 1 kg of solar panels provides 300 Watts. Capital cost for the panels of solar cells production has decreased from $ 50 to $ 5 / W in comparison to 80s, and the cost of energy consumption dropped from 0.9 to 0.2 $ / kW • h.

To overcome the dependence on weather conditions the project of creation of space solar plant located on the HIS, was advanced in the late 70’s, with the transfer of power to Earth using microwave radiation to Rectenna (that is antenna with built-in rectifier). The project was being elaborated on all components of the system, but has remained as just an interesting suggestion: although the station would be able to transfer 10 GW, which is equivalent to the output power of 10 nuclear power stations, the cost of the components raising on the satellite would have been $ 22 / g, and the mass of the satellite would have been 90 tons. Today, the picture changed. U.S. experts proposed major developments of such plants in the 35th Conference on Energy Conversion (IECEC) in July 2000.

According to these experts, new technology involving the use of high-performance solar cells, high-power semiconductor converters and magnetron generators, is capable to reduce the mass of the station significantly. Reusable transport aircraft invented by NASA, will reduce the cost of the components lifting into low Earth orbit to $2,2 / g (that is to say, in future it can reach 88 cents / g). Satellite solar power can be raised from low Earth orbit to geostationary one with the ion engine, fed by solar panels. The concept of an integrated symmetric concentrator (ISC) will reduce the mass of the controlling and power distribution system on the satellite, which constitutes a significant proportion of the mass of the whole station.

Be smart and use the help of solar power grants to convert your life to enhanced ecological balance with nature. Read about solar power grants, how to make proper use of them and where you can apply for these solar power grants.

P.S. Quality knowledge makes life easier.

That is why if you are properly armed with the knowledge in your topic you can rest assured that you will in any case find the solution to any bad situation. So, please make sure to track this web site on a regular basis or – the easiest way to take care of it – sign up to its RSS feed. In such an easy way you will have your hand on the pulse of the freshest informational updates here. Blogs can be helpful, you just need to know how to use it.

Energy Issues: Solar Cells is a post from: Residential Power

The candidate from the progressive forces Professor Minobe won the elections of the capital governor under the slogan “For the clear sky over Tokyo!”. And he really kept his promise: he made sure that Tokians caould admire the sacred peak of Mount Fuji not less than once a week. And fish reappeared in the Sumida River that flow through the town.

With the steady growth of its productive capacity, Japan is making every effort to comply with its obligations under the Kyoto Protocol: to reduce greenhouse gas emissions by 6 percent in comparison to 1990 levels. We can speak about the following achievements in the topic when speak about Japan: for every million dollars of gross domestic product growth, harmful emissions into the atmosphere are 263 tons in Japan, while they are 606 tons in the United States and 2,538 tons in China. And above all – this is the result of “green energy”, the introduction of alternative sources of clean energy.

Surprisingly, but the state that had experienced the tragedy of Hiroshima and Nagasaki is among the leaders of the Peaceful Uses of Atomic Energy. In 70`s, Japan enacted 55 nuclear power plants, which produced more than a third of all energy consumed in the country.

Almost two-fifths of Japanese nuclear power plants have been operating during last 30 years. Some of them had failures, even with human victims. And once, the threat of radioactive contamination forced the evacuation of 200 thousand inhabitants in a radius of 10 kilometres.

There were also some warnings about the alarming fact that as a result of reprocessing of spent fuel, 8 tons of plutonium can be gotten. And this, as they say, is enough to make about thousand of nuclear warheads. But nuclear energy in Japan develops, playing in the life of the country equally significant role as it is in France.

Solar panels on the roofs
Japan is called as the Land of the Rising Sun. Its national flag is a red circle on a white background that embodies precisely this poetic metaphor. But the Far Eastern archipelago has earned another name. Japan becomes a land of the solar energy rising. After all, its share accounts now for about half of the installed capacity of all the world’s generators, which use sunlight. The share of the United States and the European Union is about one-fifth each.

In Japan, solar power is developing with the active support of the state, with the use of budgetary subsidies. And it is being pushed by its leading corporations in the field of electronics and high technologies. These companies have succeeded in the production of computer chips on the silicon basis.

It is a real gift that we live in the times when the ruling elites start to understand the value of living in harmony with the nature on this planet. And solar power grants is a real case proof of it. If you want to make a switch to solar energy, please find out more about how solar power grants and how exactly you can use these solar power grants for your living.

P.S. Quality information quickly enhances the quality of our life.

Due to this if you are properly armed with the information in your topic you can rest assured that you will always find the solution to any bad situation. So, please make sure to visit this site on a regular basis or – the easiest way to take care of it – sign up to its RSS. Thus you will have a direct shortcut to the latest info updates here. Blogs can be helpful, you just need to know how to use it.

Green Energy Issues is a post from: Residential Power

Scientists estimate that hydrocarbon fuel will remain on the Earth during next 60 – 100 years, but it is a promising issue. At the moment the relevance lies in the fact that modern forms of energy change environmental conditions on the planet intensively, and unfortunately these changes are negative. The changes have become irreversible, and this often leads to casualties. Today the world uses over 12 billion kWh of energy annually. Such percentage is in materials using for energy production as: coal – 26 %, gas – 20 %, oil – 42 %, water energy – 4 %, nuclear energy – 5 %, and this leads to emissions of hundreds of thousands of tons of harmful substances into the atmosphere. As we see, we get most of the energy from fossil fuels.

Nuclear energy, which was considered recently as no alternative source of future, is almost at the top of the list of negative impacts on the environment due to constant threats of radioactive substances releases and as a consequence of long-term large adjacent territories pollution. Statistics show that almost all the energy is produced from minerals, and this makes 97%. And what is included in the other 3 %?

This is alternative energy – solar, wind, geothermal, installations that use the force of the tides etc. So the more and more attention and money are invested in innovative clean energy all over the world. The possibilities of solar energy converting into electricity` research and application in practice are being conducted extensively at this time.

Solar energy is the most environmentally friendly one and has infinite resource stock. Viability of this type of energy is confirmed by multimillion-dollar investments of oil giants such as UK-Dutch Royal Dutch / Shell Company, which has its research and development of alternative energy. It is going to invest amounts between $ 500 million to $ 1 billion annually in solar energy. Silicon is used for manufacture of solar cells. Because of the high cost of this material production, the first batteries were unprofitable. But we know that the progress does not stand still and every year the cost of it significantly reduces.

As for now, the payback of solar panels is more than 20 – 30 years, and the cost of 1 kW / m power obtained with the help of the sun’s rays is higher than that obtained from traditional energy sources. But solar energy is fully competitive in remote places or sites where electricity consumption is relatively high.

Be smart and use the help of solar power grants to convert your life to enhanced ecological balance with nature. Read about solar power grants, how to make proper use of them and where you can get these solar power grants.

P.S. Good knowledge makes life easier.

Due to this if you are properly armed with the knowledge in your topic you can rest assured that you will in any case find the solution to any bad situation. So, please make sure to get back to this blog on a regular basis or – best of all – sign up to its RSS feed. In such an easy way you will have a direct shortcut to the freshest informational updates here. Blogging can be helpful, you just need to know how to use it.

The Energy Needs is a post from: Residential Power

A solar collector is the main element of any solar system. Particularly in its absorbing panels or tubes solar energy is being converted into heat. The coolant (it is usually a non-toxic freezing liquid) selects the heat and, having entered a heat exchanger tank battery, it transfers heat to water. Water is used for hot water supplying or in order to maintain the warm in a household, and chilled coolant returns to the collector, and the process repeats then. It lasts until the sun sits down. Modern highly selective coatings allow the system to work, even if the sky is overcast.

The water, which is then used for household needs flows in the simplest single-circuit systems. However, the exploitation of such reservoirs in our country is complicated by a number of reasons. Firstly, their channels may be soiled with salts because of high water hardness. Moreover, freezing temperatures happen even in late spring or early autumn. It causes the water freezing. Therefore, dual-circuit system is preferable to be used in our climate.

The coolant can circulate in the collector disk in a natural way (by heating and rushing to the top of the collector) or with a circulating pump, power consumption of which is negligible in comparison to the generated heat. Systems with coolant natural circulation are widely used in countries with warm climates and a large number of clear days (eg, in Turkey, Greece, Egypt, Israel). In our climatic conditions systems with forced circulation are more effective ones.

If there is enough large amount of solar energy to heat water, for space heating or water heating in a swimming pool, the collector is often combined with other heat generators. For example, in the bivalent plants the extra heat could be given with hot water boiler that runs on liquid or gaseous fuels. Such a system solution allows provide homes with heating in winter.

Flat solar collectors are widely used today. They work well under normal solar intensity in the period from May to October, and, moreover they completely override the need for hot water in summer. In our climatic conditions, such systems are ideal for a summer home or seasonal home stay. Relatively low cost is their unquestionable advantage.

The building of a modern flat manifold is a frame, which is made of galvanized steel or anodized aluminum, in which hail-stainless sheet of glass with low iron content (0.03%) with a thickness of about 3 mm that allows reducing of heat loss is hermetically inserted.

Luckily we live in the times when the ruling elites start to understand the value of living in harmony with the nature on this planet. And solar power grants is a real case proof of it. If you want to switch to solar energy, please find out more about how solar power grants and how exactly you can use these solar power grants for your living.

P.S. Quality information quickly enhances the quality of our life.

That is why if you are properly armed with the information in your topic you can be sure that you will always find the solution to any bad situation. So, please make sure to get back to this site on a regular basis or – an ideal solution for you – sign up to its RSS. Thus you will have a direct shortcut to the freshest informational updates here. Blogs can be helpful, you just need to understand how to use it.

Solar System is a post from: Residential Power

According to current head of the company’s Ecoenergetics department Bill Vail, just now Google searches new materials for the heliostats to increase the efficiency of their performance and durability.

According to him, the company develops technologies, through which the construction of solar plants will cost a quarter less. Google plans to show them in a few months.

Usually, the structure of cost of a watt of energy capital costs amount to 2.5 – 4 dollars. That is to say, the installation of the plant with a capacity of 250 megawatts would cost between $ 600 million to 1 billion dollars. Thus, it turns out that the cost of electricity is 12-18 cents per kW / h.

Another trend, which Google also runs is technologies for gas turbines, which will run on solar energy, rather than natural gas. New ways will also help to reduce the cost of generated energy.

Within two or three years, the company will demonstrate a pilot grid of high-power scale, which can be used for mass production. With the help of the cost of electricity should be reduced to 5 cents per kW / h. Thus, the cost of alternative energy produced from the use of this system, decrease in 2.5 – 3.5 times.

In 2007, representatives of Google, announcing the program called “Renewable Energy Cheaper Than Coal”, which had the aim to reduce the cost of electricity below the price of coal per kilowatt – hour, indicated the following price horizon of alternative energy: the use of alternative sources of energy cost per kilowatt hour for the end user, ideally should not exceed 3 dollar cents. At the same time the company announced its intention to invest hundreds of millions of dollars in the development of methods of solar power production, so as wind and other forms of energy from alternative sources.

The company had to invest about $ 50 million in the program on alternative power over the past two years. These funds were invested in, including in dealing with solar energy company eSolar and BrightSolar, which, however, are not engaged in the development of equipment and mirror systems for solar plants. Generally, there are not so many companies that operate in the field of alternative energy.

In recent years the market of solar energy has been growing up to 30 % annually. According to research of firm called Lux Research (USA), the total size of the solar energy market in last year amounted to 33.3 billion dollars, or about 5 GW.

Be smart and use the help of solar power grants to convert your life to enhanced ecological balance with nature. Read about solar power grants, how to make proper use of them and where you can apply for these solar power grants.

P.S. Quality information makes life easier.

That is why if you are properly armed with the information in your sphere of interest you can be sure that you will always find the way out from any bad situation. So, please make sure to visit this web site on a regular basis or – the least time consuming way of doing it – sign up to its RSS. Thus you will have a direct shortcut to the freshest informational updates here. Blogs can be helpful, you just need to know how to use it.

Basic Issues About Alternative Energy is a post from: Residential Power

The absorber body is protected by a collector with a reinforced insulation that also minimizes heat loss. The amount of solar radiation that reaches the surface of the solar collector reaches its maximum only at noon when the sun is at its zenith. Speaking about morning and evening, sunlight falls on it at an angle, and the amount of absorbed solar radiation decreases.

Flat collectors do not work in winter, because even with a two-system` antifreeze, the maximum allowable operating temperature is about -5

Flat Solar Collector: Characteristics And Components is a post from: Residential Power