China surprises with a huge building powered by the sun

The construction of the image shows the development of China's true power - the "Sun Dial", the largest business center in the world with solar power.

Roof with solar panels has an area of 75,000 square meters, and below it are huge spaces for exhibitions, research laboratories, conference and training rooms, offices and even a hotel.

In making the imposing steel structures used very little, only 1% of the amount used for raising the famous stadium "Bird's Nest" (Bird's Nest), who hosted the 2008 Summer Olympics.

To save as much energy, the walls were isolated using cutting-edge technologies. The official inauguration of the building, located in Dezhou city, event happened during the 4th World Solar City Congress in the autumn.

The primacy of this achievement but it might take less, because the Arabs are ready to close in February 2010 an entire solar city - Masdar City. Their plans may still be foiled by the economic crisis, felt even in the emirate of luxury and extravagant - Abhu Dhabi.

Light pollution

What is light pollution?
Light pollution is caused by inefficient urban lighting, the lighting of roads and highways incorrect or inadequate private lighting and causes a number of problems.
It speaks of light pollution when artificial lights are so numerous and ubiquitous that harms normal and desirable dark at night.
Thus, at nightfall, numerous artificial light sources (urban lighting, billboards, office permanently illuminated ...) replace the sun in cities to the smallest village.
Light pollution is a form of pollution because until now very little was mentioned less hazardous to health in comparison with other conventional sources of pollution: waste, fog, dirty water ...
Light pollution means:
-Huge energy costs unnecessary
-Security issues Destruction of ecosystems based on night-day sequence
-Health problems in the population
-Reducing activity astronomical observatories, and amateur astronomers
-Since 1830, responsible for lighting Paris lit just one of two full moon nights to save energy.

Light pollution is several ways, namely:

-Over-illumination

-Night sky brightness

-Light blindness

-Excessive light clusters

-Light passing the limit property

Now I will say a few words about these types of pollution.

-OVERR-ILlUMINATION-

Over-illumination is the excessive use of light.

Over-illumination is produced by several factors:

-Model improper bulbs used for office buildings and lighting set standards too high for different types of work.

-Keeping bulbs lit in offices where the night is no longer working.

-Choosing the wrong types of lamps and their installation being incorrect that they do not direct the light directly onto the ground, but the sky.

-Lack of timers, the presence of sensors or other types of controlled switches to switch off the light when it is no longer necessary.

-Inadequate maintenance of electrical systems resulting in waste of energy and therefore additional cost.

-Insufficient information and training to people about using energy efficient systems.

-NIGHT SKY BRINGHTNESS-

This type of light pollution refers to the production of "domes of light" above the overcrowded areas. In these areas, because of public lighting based on mercury vapor lamps, the sky is lit in a color. The brilliance of the night sky above the city is caused by the fact that most lamps allow massive leakage of light to heaven.

This light is reflected in the city smog and the atmospheric layers and produces a true halo.

Urban halo is often brighter than the streets where it should be light. In this type of light pollution you can see very well the waste of energy. I can see going out of town where you live.

A private and public regulatory lighting, along with reducing air pollution would lead to a decrease in halo city.

-LIGHT BLINDNESS-

The lights are very bright and we enter directly into eyes not to see us do well the difference between light and dark.

This brightening may be of several types:

-Glare - with effects similar to those caused by sunlight. It produces temporary or permanent visual impairments.

-Glow producing temporary blindness - has an effect similar to that produced by the headlights of a car, the light that is transmitted through the fog. It produces significant temporary reduction and visual capacity.

-Glow disturbing - not in itself create a dangerous situation, being more irritating or annoying, but a long-term exposure can cause eye fatigue or mental.

-EXCESSIVE LIGHT CLUSTERS-

The lights of several types gathered at one place can cause confusion, can distract from obstacles (including those that seek to illuminate), can lead to accidents.

-LIGHT PASSING THE LIMIT PROPETY-

This type of light is passing from one property to another neighbor over the fence. A major problem occurs when light from a powerful bulb lighting used for input or garden into the room causing their neighbors insomnia or inability to look through their window in May.

The effects of light pollution

-Waste of energy

-Health effects

-Destruction of ecosystems

-Security issues

-Effects on astronomy

How to reduce light pollution?

Solution for reducing light pollution is very simple. It is reduced to ensure that the lamps light only where needed, not toward heaven, not into neighbors homes and in any case into the eyes of drivers. Use of green lamps (maximum efficiency) is the perfect solution. They should only be directed downward and not in other directions.

"Sun Street"...."Streetsun"

A German company organizes international exhibitions with the theme "Energy Future" to promote clean lighting bodies.

"Streetsun" as hereinafter is constructed from an aluminum leg, high at least 4 feet, "hat" with photovoltaic panels and lamp itself consists of 12 LEDs.

"Streetsun" needs a light to accumulate anergie to light for 3 nights, with a power of 70 watts and an intensity of 360 lumen.

They guarantee to 50,000 hours, or approximately 10,000 nights or 27 years.

This system is used widely in Germany, a country where it was conceived, especially in areas difficult to reach. A light bulb "Streetsun" cost around 2700 euros, the rapporteur in the life of this would cost around 100 euros per year.

After elimination of all incandescent light bulb or halogen in Europe is estimated that Europeans energy bill will be reduced by 11 billion euros annually and the amount of carbon dioxide will be reduced by 32 billion tons.

If is true, that would be the effect if this system would be adopted by all countries in the world?

It would be an "oasis in the desert" to the nature of this quantity of carbon dioxide which will be informal in nature.

Please comment and nice to give us your suggestions.Thanks!!!

Light ecological...eco bulbs...wofi

You know that a light bulb compared with one ecological normal, even if they have the same number of watts, seems to not offer the same amount of light.

It is better to buy green light bulbs with more watts, without worry that they will consume more electricitate.Them work longer and not emit heat, while normal lamps also consume a lot of electricity and emit a large quantity of heat, which is not just ecological, also lamps normal depreciation quckly end must to be disposed, and in their composition into different substances that are not too friendly with the environment, they should be collected after it burned, in special, because besides the substances that enter the thread, they contain glass and alloys metalice.

The sistem of lighting of wofi with the LEDs to a Additionally, besides a low energy consumption, with their help can get a very ambient lighting, light intensity can be controlled through a variety of light or even the remote.

Eco light bulbs have already started and new technology requirements and make possible the revolution green lighting.

For all the luminaires in ecological new collection, the company provide a guarantee of ten years.

"The lamp flower" from Philips - the new concept of street lighting

The concept developed by Philips has the advantage of collecting solar energy and wind. At night, the light shines not when anyone's around and when strong lighting detects motion.

The design of lighting solutions stad of urban areas is a challenge for urban managers. Too much light results in light pollution - not just blurred but admirarea stars involved in normal development cycle of plants and animals. On the other hand, too little light falls safe districts. One solution is this new concept called "Light Blossom," designed by Philips Electronics. This is a smart LED system that provides near different lighting intensity and can eliminate the usual electricity network and is an energy efficient device. As throughout the day, the device operates like a flower opening its "petals" to collect solar energy and shift them according to their position, so either "front" to it and achieve maximum efficiency (such as sunflower) . During cloud with strong winds, automatically raise their petals in a position that allows the capture of wind energy. As spinning, petals of a transfer motion impeller incorporated which will turn into energy. Lamp flower continuously change the power source depending on weather conditions and it shows the flow of energy collected by a decor of any visible trunk past. At sunset, the device is activated automatically iluminand around. Philips claims that it minimizes light pollution and light only when motion detection is the move from stand-by at high intensity. Philips also said that ledurile of energy efficient lamps use only half the energy used by traditional street lamps to produce the same light intensity. Since the network does not require electricity, can be installed in rural areas without infrastructure investment. In urban areas can even send the excess energy generated by classical electrical infrastructure which it transforms more haste in producing energy than the consumer. Philips concept inaugurated in October in the Philips Simplicity Event event which took place in Moscow.