I remember the controllers in gas masks working at the crossroads of Tokyo in the mid 60’s. Yes, negative effects of industrialization and urbanization have reached Japan earlier and more painful than other developed countries. However, a country of volcanoes and earthquakes coped with the new of her disasters called “Kogan” (that is to say, industrial pollution of nature) more efficiently than others.

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 realize 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 read more about how solar power grants and how exactly you can use these solar power grants for your living.

P.S. Quality knowledge makes life easier.

That is why if you are properly armed with the knowledge 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 get back to this blog on a regular basis or – the least time consuming way of doing it – sign up to its RSS. In such an easy way you will have your hand on the pulse of the freshest informational updates here. Blogging can be helpful, you just need to know how to use it.

Vacuum tubes of ultrahigh thermal conductivity (SV-pipes) are work with the same principle as the ordinary vacuum tubes, and have all the above advantages. But they have some fundamental differences, which significantly increase their effectiveness. Not thermos flask is vacuumed in SV-evacuated tubes, but the entire space of the pipe that reduces heat losses to a minimum. As a result, they continue to operate efficiently down to -50 ° C

Because they use no double but single-glass, pipe wall thickness is increased on 0.5 mm, and it may withstand falling hail of 35 mm without prejudice.

With highly selective absorbent layer such pipes perceive diffusion light, and this means that they will work, even if the sky is overcast, they just loose productivity a little. They are ready to work immediately, as soon as the surface will be fallen with sunlight, and just 3-5 minutes later the temperature at the tip is raised to +100 ° C (maximum – up to +300 ° C). Performance of SV-pipe is about 85%.

Tubular Solar systems supply homes with hot water excellently. They heat swimming pools and greenhouses, make ventilation, air conditioning and heating of buildings work. Depending on the characteristics of the building solar collectors can be installed:

• on a sloping roof;
• on a flat roof or horizontal surface near the house;
• on a sloping wall, oriented to the south;
• be mounted directly to the roof.

The cost and accounting of the system
The cost of a solar collector installing exceeds the cost of equipment for the traditional heating and hot water, but the economic benefits of such solutions are obvious; if we take into account the constant increase in energy costs (for the last two years, gas has risen in price by 300%, and it is possible that we will pay for it at very high prices soon.

Systems are installed on a turnkey basis, that means that their value includes the cost of equipment and work that does not quite belong to the solar system itself, but which is essential to its normal operation (such as installing of battery tank and its binding). On the other hand, setting the heating boiler, the owners also have to pay for its installation. Another argument in favor of solar system is their long life. Solar equipment is very reliable – there are no moving parts, and therefore there is nothing that may break. Manufacturers guarantee that it will be successfully operated for 25 years. For comparison: the electric heater works about 6 years at home, and the boiler works 10 years in average (but you will need to replace the burner so that CPA not fall).

And operating costs are not comparable: Vacuum Solar systems require no maintenance (except the case when you will have to wash it if there is very strong dust). Boilers need to be continuously monitored. You must change the burner periodically, and heating elements in electric boilers. If the boiler runs on gas, you will have to deal with the gas department.

So, it might be not the worst idea to install the solar system in your household.

Luckily we live in the times when the government start to understand the value of living in harmony with the nature on this planet. And solar power grants is a realistic 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 exploit these solar power grants for your living.

P.S. Quality knowledge makes life easier.

Due to this if you are properly armed with the knowledge in your sphere of interest you can rest assured that you will always 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 a direct shortcut to the latest info updates here. Blogging can be helpful, you just need to understand how to use it.

As it is known, the progress in material goods production is uniquely linked to the success of the energy base. By the middle of the 21st century, when the population of the globe apparently stabilize on a point of approximately 10 billion people, energy demand per capita will reach about 105 kW • h per year, and the power of the world’s energy supply – 1010 kW. Today, world energy system is mainly based on non-renewable energy resources such as coal, oil, gas, peat or uranium. However, it is clear that we will not be able to achieve a substantial increase in energy consumption based on these resources as their stocks are limited, and because of the adverse effects of these fuels on the environment. So scientists have turned their gazes to solar energy long time ago. Some projects involve different methods of solar energy transformation into electricity in space, distribution and delivery of it on Earth.

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 use them and where you can apply for these solar power grants.

P.S. Quality info makes life easier.

Due to this if you are properly armed with the info in your sphere of interest you can be sure that you will in any case find the way out from any bad situation. So, please make sure to get back to this 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 latest info updates here. Blogs can be helpful, you just need to understand how to use it.

The main component of the flat collector is a copper absorber with selective coating, which provides a high level of absorption of solar energy and low emission of thermal energy. Copper tube is installed at absorber and coolant flows through the former. It may be water or some non-freezing liquid, which takes heat from the absorber and simultaneously with circulating through the coil, it accumulates in the accumulation tank (the tank with water).

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 ° C. With further lowering loses of heat reduce the result to a level of zero. The more solar collectors absorb solar energy and the less they lose it, the more efficient the system will work. Efficiency of the collector shows what percentage of solar radiation that falls on its base surface, can be converted into useful thermal output. This indicator is volatile and can be determined only in the specific operating conditions in a single moment in time. The lower the temperature to which you want to heat the water, the more efficiency is. Modern flat solar collector work with an average working efficiency of 50%, more obsolete models work with 20-40% of it.

And now we will compare flat collectors with those of high-vacuum tubes type. Their employment is based on a simple principle of a heat pipe, which is a hollow brass rod, soldered at both ends with the extension in the upper part. Non-toxic reagent is inside of it; it evaporates during boiling and in the form of vapor rises into the upper part – into the tip, where the temperature can reach 250 ° C. And it is condensed there, giving warmth, and condensate flows down the walls of the tube, and the process repeats then.

Heat removal can be carried out in different ways, for example, directly from the tip through the glass, soldered to the pipe through which the solar fluid flows. In a closed-circuit it can be freezing liquid-based glycol (warmth comes to storing tank), in an open system it may water (it goes directly into the boiler). Whatever it were, immediately after the absorption the heat is given to the coolant and does not go into the environment. This is the key difference between heat pipes and flat solar collectors.

The effectiveness of heat pipes with U-shaped tubes (the most simple, used in tubular systems) is a cut above that of flat collectors. Due to its cylindrical form, they work fine during the day, because their surface is always illuminated by the sun. This results in a stable energy at different angles of incidence of sunlight. The tubes are well protected from the adverse effects of nature (hail, wind and other things), but in any case, such systems also have weaknesses.

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

P.S. Quality information makes life easier.

That is why 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 track this site on a regular basis or – the least time consuming way of doing it – sign up to its RSS. In such an easy way you will have your hand on the pulse of the latest info updates here. Blogs can be helpful, you just need to know how to use it.

The number of conflicts in the world that are caused by the energy needs increases today. Gradually, the amount of oil, gas and coal in the world decreases, and their consumption is increasing, particularly in developed countries. Most of them have spent their own stocks. And now, they are dependent on third countries that play on this and continuously raise the cost of raw materials that leads to higher prices, both on domestic and international markets. Accordingly, the problem begins with the socio-political situation. Governments of the largest energy consumers try to seize the places of raw materials extraction in order to avoid the crisis. It is not seldom leads to military conflicts.

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 aid of solar power grants to convert your life to better ecological balance with nature. Read about solar power grants, how to use them and where you can find these solar power grants.

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

Due to this if you are properly armed with the info in your sphere of interest you can rest assured that you will in any case find the way out from 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. In such an easy way you will have a direct shortcut to the latest info updates here. Blogs can be helpful, you just need to understand how to use it.

We continue speaking about the tube solar power collectors.

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 ° C.

The vapor rises to the tip (that is to say condenser) heat pipe, which gives off the heat to water, which flows through the thermal conductivity. Then it condenses and flows down, and the process repeats again.

Solar collector with vacuum tubes shows excellent results on cloudy days, because the tube can absorb energy from infrared rays that pass through the clouds. With insulating properties of the vacuum influence of wind and low temperatures on their work is so insignificant in comparison to the impact on the flat solar collector. The system works successfully down to -35 ° C. Packed tubes are round, so that the amount of solar radiation reaching the collector remains fairly constant from mid morning until mid-day. This brings increasing in the total amount of absorbed solar radiation. The shape of pipes provides superior degree of absorption, since the sun’s rays always fall on its surface at a right angle, reducing the reflection to a minimum.

Pipes are laid in parallel inside the collector. The angle of inclination depends on the latitude of the place. Having been oriented from north to south, they passively follow the sun during the day.

This collector requires virtually no maintenance. Manufacturers offer the guarantee up to 25 years for similar products. The system is fully maintainable: if necessary, the pipe can be replaced, added or removed without stopping of the collector.

It is a real gift that we live in the times when the ruling elites start to realize the value of living in harmony with the nature on this planet. And solar power grants is a realistic 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. 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 web site on a regular basis or – the least time consuming way of doing it – sign up to its RSS. 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.

You do not have to pay for solar energy, because it is effective and virtually inexhaustible. This is a really sufficient reason for considering of solar power as the most promising alternative means of low-potential heat energy obtaining, isn’t it? Through the use of modern solar energy technology during the period between April and October, you can opt out of the gas and electricity consumption for hot water, and during the winter months you may use this to save amounts from 40 to 60% on energy carriers.

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 realize the value of living in harmony with the nature on this planet. And solar power grants is a realistic 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 exploit these solar power grants for your living.

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 always 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 your hand on the pulse of the freshest info updates here. Blogs can be helpful, you just need to understand how to use it.

Solar Panels are also known as photovoltaic panels and are one of the most commonly used sources of energy that use solar energy to produce electricity. The device is totally pollution free and does not spread the harmful carbon residuals into the environment. The solar panels are eco friendly devices that are capable of producing electricity at a very economical rate because of their low or negligible maintenance costs. The solar panel technology is mainly divided into two major categories: Amorphous and Crystalline Solar Panels. The amorphous solar panels are used in small solar products whereas the crystalline solar panels are used on a large where more than one solar products or lighting devices are connected in series to work as a single unit.

Outdoorstuff.eu is one of the top manufacturers of solar products and the products designed by them reliable and economical at the same time. They have various solar products available with them ranging from Xero pro Electric skateboard to portable solar panels. The website also offers permanent solar panel devices hat are capable of providing hot water throughout the year. The need of the hour is that we must recognize the importance of renewable sources of energy and start using them in our daily lives to meet the low and medium energy demands of our daily life tasks.

In this article we will discuss some themes related to different types of constructions used to produce solar power. We will begin from the grid-tied systems.

A utility-interactive solar power system makes electricity, which is put directly to the grid. The word grid-tied means, that the system is tied, verbatim, to the grid. This system will accumulate the energy even when you are absent, when you and you are on vacation with your friends during the holidays. You just may use the energy after you come back home. That is why you will reduce your electricity bills` costs or even forget about them.

Known as solar modules (photovoltaic) panels, they give the beginning for very interesting process of transforming of solar energy into solar power. The word photovoltaic sounds in such a way because of physics rule, which says how the solar energy may be converted into electricity. Briefly, there are many silicon cells in each such panel, every cell gives the reaction with photons (units of lights), which came from the sun. Than direct current electricity is produced.

The construction of the panel also contains so-called mounting racks, which are used to orient PV panels properly. For instance, the panel may face the west, while the most effective side is north. There are three types of mounts, which are available: the most popular in cities rooftop, and less used ground and poles, which are set in concrete. There is also a great amount of additional equipment that is being used with the panels. But it depends on the certain type of the panel.

There is also a DC disconnect, which is used when safe disconnect of the flow of electricity from the PV panels is needed. It may happened in case of overload.

Such detail as inverter makes the raw DC power, which is produced by the solar panels, be converted to usable AC ( that means alternating current) power that may than be used in exploitation of the household equipment, lighting and other electric devices. That is because all of them run off alternating current electricity.

Such device as the AC Breaker Panel/Inverter AC Disconnect is located in the place where the dwelling wiring touches the power supply. It consists of special elements that can be used both for protecting from fires and for usual purposes.

Speaking briefly, all three types of panels are working similar. It is important to know some things when you decide to by the PV panels. You must buy the right panel depending on how much power your home needs, how much room and land you have to understand where it can be mounted.

You also can find that some manufacturers and sites saying that panel A is much more better because it is more effective at low light. It may be true, but listen: one panel may be more effective than the other under the same sun light with the difference of 1 percent. But in the same time this more efficient panel may take 15 percent more room space. So take it into consideration. If you have enough space you may take it, but in another case think before you buy the panel.

Be smart and use the help of solar power grants to convert your life to better 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. Quality knowledge quickly enhances the quality of our life.

That is why if you are properly armed with the knowledge in your topic you can be sure that you will always find the solution to any bad situation. So, please make sure to visit this web site on a regular basis or – the easiest way to take care of it – sign up to its RSS feed. 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.