A product design is not just an isolated object, but also the complex network of relationships that constitute it for what it will be understood in context. This work wants to build a network of environmental sustainability and putting the individual at the center of this network.
Cooperation with San Liu, Xinyu Wan and Emre Icdem, Vienna-based architect Steven Ma has proposed a very innovative super thin twin towers for Taiwan that will be used to demonstrate Taiwan’s past, present and future. With a height of about 360 meters, the sustainable tower features an observatory deck and sky-gardens at an altitude of 350 meters.
This environmentally friendly pest prevention is supported by an integrated solar panel that ward off underground pests like moles, voles, and gophers without complicated set up of external power. The weatherproof anodized aluminum spike stakes into the ground, which emit sonic vibrations every 30 seconds an annoying digging pest and forcing them to disperse. Deterrence operates in diameter, 94 1/2′ and 3″ square solar panel that charges integrated battery during the daytime, even in low light and overcast conditions, so the operations both day and night. Panels charges fully in three hours in full sunlight conditions and will operate for eight hours with full charge. Replaceable rechargeable battery included. Price includes two deterrents 13 3/4″ H x 6″ W. [Via]
It is always essential to get sure that the good solar companies is selected by the purchasers when they are going to purchase a solar cell or panel for either commercial or residential uses.
It is so simple to check the performance of company by seeing at the standard of their products. The greatest solar power companies commonly supply the purchasers with products that are suitable to meet the needs of the clients and the others commonly lead the consumers to purchase a product that is costly and may not be solution to their questions.
It is urgent for the consumers to get proper direction as without it they are probably to be misinformed and might finish purchasing something that takes costly resources and is not as good as it was so-called to have been. The greatest solar power companies commonly supply their consumers with suggestions on the true and efficient use of the solar power products that are purchased by them.
It has to be thought by the purchasers that the size and the performance of the company are not connected or equal concepts in case of the solar power companies. It is not required that the bigger companies are the greatest in the business. The experience of the company is highly essential in such cases.
The purchasers have to ensure positive facts and they would be able to check, for themselves, the performance of the company. Components like the amount of long time of operation, the amount of systems set up and the background of the company are great indicators of the company’s model.
The clients should do their research too before they start to purchase product from a specific solar companies. The purchasers must have good knowledge of the several items of the solar power products they are getting to purchase so that they are in a well situation when they go to buy these products. The research also enables the consumers to ask essential enquiries of the companies.
The purchaser also needs to be perfectly sure of what he needs as that would enable him to deal more fruitfully with the special solar companies. In cases where the purchaser needs to switch the energy system into a solar one the customised solar power systems are the greatest. The purchasers can also go for companies that work in their vicinity. The essential reason behind this is the fact that the local companies can address the several troubles looked by the owners of the solar power systems than several company which is not in the vicinity of the owner. They can also play activities like replacing of machine pieces or maintenance of machines way better than a company that is located at a distance form the owner.
You may have seen a calculator that has a solar cell? calculator that does not need batteries, and in some cases do not even have the off button. As long as you have enough light, so the calculator can be on at any time and forever. You may have seen larger solar panels, such as in housing or traffic lights, haven’t you? In this article I will review how solar cell work so it can deliver the energy and drive an electronic device.
Today the demand for electricity has become a major requirement in all corners. The presence of power plants sometimes do not solve the need for electricity especially in remote areas where the terrain is always an excuse. Here an alternative energy that can be easily found in nature and can be used as an alternative free energy replacing conventional electricity, because it can turn on household electronics such as televisions, radios and lights.
Solar cells made from pieces of a very small silicon coated with special chemicals to form the basis of solar cells. Solar cells generally have a minimum thickness of 0.3 mm is made from semiconductor materials incision with positive and negative poles. Each solar cell produces usually voltage 0.5 volts. Solar cells is an active element (semiconductor) that utilizes photovoltaic effect to transform solar energy into electrical energy.
Solar cells contain a connection (junction) between two thin layers made of semiconductor materials, each of which is known as a semiconductor type “P” (positive) and semiconductor type “N” (negative).
N-type semiconductor made of silicon crystals and there are also some other materials (typically phosphorus) within the limits that these materials can provide an excess of free electrons.
Electrons are sub atomic particles are negatively charged, so that the silicon alloy in this case known as N-type semiconductor (Negative). P-type semiconductor made of silicon crystal in which there is a small amount of other material (typically boron) which caused the shortage of material free electrons. Lack or loss of electrons is called a hole. Because there is no or lack of electrons electrically negative charged then the silicon alloys in this case as a semiconductor type-P (Positive).
Composition of a solar cell, the same as a diode, consisting of two layers, called PN junction. PN junction obtained by staining a pure semiconductor silicon (valence 4) with the impurity valence 3 on the left side, and one on the right impurity stained with valence 5.
The effect of the electric field in a PV cell
Operation of a PV cell
Basic structure of a generic silicon PV cell
Thus formed on the left side that is not pure silicon again and called P type silicon, while the right side is called silicon type N. In the pure silicon there are two kinds of electrical charge carriers are balanced. Positive electric charge carriers called holes, while the negative are called electrons. After a desecration process, in the P type silicon formed holes (positive charge carriers) in a very large number compared with the electron. Therefore, in the P type silicon holes are majority charge carriers, while the electrons are minority carriers. Conversely, in the N type silicon is formed of electrons in a very large number so-called majority carriers, and holes called minority carriers.
In the silicon rod there was interaction between the P and the N. Therefore called the PN junction. When present, the P associated with the positive pole of a battery, while the negative polar associated with the N, then there is a relationship called “forward bias”.
Under forward bias, electrical currents arise in a series due to both types of charge carriers. So the electric current flowing in the PN junction is caused by the movement of electron and the movement of holes. An electric current is flowing in the direction of holes movement, but opposite direction with the movement of electrons. Just to further explain, electrons moving in the conductor material can lead to electrical energy. And electrical energy is called as an electric current that flows in the opposite direction to the movement of electrons.
But, if the P associated with negative pole of batteries and the N associated with positive pole, then now formed a relationship called “reverse bias”. In these circumstances, the hole (positive charge carriers) can be connected directly to the positive pole, while the electrons are also directly to the positive pole. So, clearly in the PN junction there is no movement of majority charge carriers either the holes or electrons. Meanwhile, the minority charge carriers (electrons) in the part P moves trying to reach the positive pole of the batteries. Similarly, the minority charge carriers (holes) in the N also moved to reach the negative pole. Therefore, in a state of reverse bias, in the PN junction there is also output current even in very small amounts (micro amperes). This current is often called the reverse saturation current or leakage current.
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Anything interesting in reverse bias. When the temperature of PN junction raised they will be able to enlarge leakage current. Means that if given the energy (heat), the minority charge carriers in the PN junction grows. Because the light is one form of energy, so if there is light that hit a PN junction may also produce enough energy to generate charge carriers. This symptoms are called photoconductive. Based on the photoconductive symptoms made of photodiode electronic components from PN junction.
In reverse bias, with increasing intensity of light that hit photodiode can increase the level of leakage current. Leakage currents can also be enlarged by increasing the battery voltage (reverse voltage), but the addition of leakage currents were not significant. When the batteries in the reverse bias circuit is removed and replaced with a load of resistance, the provision of light that can cause charge carriers both holes and electrons. If the illumination light is increased, current output was greater. Such symptoms are called photovoltaic. Light can provide enough energy to enlarge the number of holes in the P and the number of electrons on the N. Based on the symptoms of this photovoltaic electronic components can be created photovoltaic cell. Because usually the sun as a source of light, the photovoltaic cell is also called the solar cell (solar cells) or a solar energy converter.
So the solar cell is essentially a large photo diode and designed by referring to the photovoltaic symptoms so that could produce the greatest possible power. P type silicon is the very thin surface layer so that light can penetrate directly reach the junction. Part P is given ring-shaped nickel layer, as a positive output terminal. Under the P is the N type that is coated with nickel as well as the negative output terminal.
To obtain a large enough power required much of solar cells. Usually, solar cells arranged form the shape of the panel, and is called the photovoltaic panels (PV). PV as a source of electric power was first used in satellites. Then PV as an energy source for cars, so there are solar electric car. Now, in foreign countries, PV has started to be used as a roof or wall of the house. Sanyo has made even a semi-transparent PV that can be used as a substitute for glass.
After getting the output of the solar cell is a direct electrical current can be used to load utilized. But also the electric current can be used as a charge stored by the battery to be used when needed, especially at night because there was no sun.
If the solar cell is used for storage into the battery, then the resulting voltage magnitude must be above the battery specification. For example the battery used is 12 volts, the voltage produced by solar cell must be above 12 volts in order to perform charging.
We recommend that before carrying out the charging battery should be empty because the incoming flow will be filled with the maximum. The unit capacity of a battery is the Ampere-hour (Ah) and these characteristics are usually found on the label of a battery. For example a battery with 10 Ah capacity will fill up for 10 hours with the solar cell output currents of 1 Ampere.
Solar power is an effective way to harness the power of the sun, the plants have been doing this for millions of years. Solar energy is cheap, reliable and can produce tremendous power, but only in the daytime. This is the main problem of solar energy utilization. The average home will use less power during the day, and much smaller in the summer which is the peak power (fastest time) for solar panels to generate energy. To be effective this power should be stored.
One popular way to store solar power is to connect the solar panels to the electrical grid, which effectively turn it into a battery. This allows excess energy to be sent back to the electric company, actually make the electric meter run backwards. At night, the power drawn from the grid as usual. This is only as reliable as the existing grid. Each power outages could still affect these solar panels, but no rechargeable batteries should be used.
Rechargeable batteries are known for having a short age, and expensive. They also have low power flow for a long time with good capacity, or they have a high power electrical short time with the poor capacity. Typical batteries, especially lithium ion, has a high capacity to store power, but provides a weak output and recharge slowly. An ideal solar battery will be able to charge quickly, has a high density to save power and can emit as much power as needed. This ideal combination is something that no battery has been able to do until now. It can only be done through the study of nanotechnology.
Researchers at the University of Maryland have developed a way to create a very powerful battery, the dense refill using nanotechnology. Individual parts, which looks surprisingly like a photovoltaic panel is only a thousand times smaller, is assembling his own, self-replication, and aligning itself too. There is no mechanical process can achieve anything similar small, which also contributes to their relatively low cost. They are still in the testing stage and court, but should look widely and production operations in a year. Able to store the power created from sun and wind will soon make fossil fuels obsolete and mysterious.
Solar Power Plant is a system of clean energy and produce electricity from sunlight. Also support the issue of global warming. Because energy is widely used by State Electricity Enterprise is the energy that can not be renewable (fossil) fuel such as kerosene, gas, coal, etc. Whereas current cost of fuel has begun to become dearer. If using the sun is free energy available abundant.
Installation and Operation is very easy, enduring long and a very inexpensive investment option to be public at this time. Can be used to meet electricity needs anywhere, especially in rural areas or areas that do not (not yet) reached by State Electricity Enterprise network.
Various Benefits of Using Solar Power Plant:
Principles of Sun Power Plant
In the daylight the solar panel receives light (rays) of the sun and then converted into electricity through the Photovoltaic. Electricity generated by solar panels can be directly channeled to burden or stored in Electric Box System (EBS), before use to load, light, radio, TV etc.
At the night, where the solar panel does not generate electricity. Electricity that has been collected (stored) in a Electric Box System (EBS) will be used. To turn on electrical equipment, especially the lighting, etc.
Components of Solar Power Plant
1. Solar Panel:
Change the sunlight into electricity. Modular form of the solar panel provides the ease of the electricity needs for various scale of the needs.
2. Electric Box System (EBS):
The Design of Solar Power Plant – The Practical and Flexible
With a flexible design that can be possible to increase the capacity of electricity with solar panels only add (maximum 2 solar panel) for each package.
Installation HOW VERY EASY
Article You May Be Interested In Reading: Solar Fountain
Executive Summary about Solar Cooker by Detlef Warner
Cooking with a solar cooker is one more way that you too can go green!
A solar cooker, or solar oven, is mechanism that uses sunlight to cook food rather than electricity or gas. Solar cookers come in several different varieties: A box cooker, panel cooker, and a parabolic cooker. While a box cooker is a better choice when you’re looking to cook a large amount of food, a parabolic cooker is capable of cooking the food faster.
Solar cookers will take more time than a traditional oven, with the exception of a parabolic cooker, so you should plan on allowing approximately two times the regular cooking time. Solar cookers are readily available both online and in stores. You can construct a solar oven out of something as simple as cardboard and in a short amount of time be cooking your first solar meal!
How to Make a Solar Cooker? – Making a Homemade DIY Solar Cooker
Executive Summary about Solar Cooker by Dinna Bonevi
Isn’t it a wonderful idea to make a homemade DIY solar cooker, then cooking under the sun? Clues are: it’s energy source is free, environment friendly, comparable to latest cooker but with great discount, pocket friendly and absolutely can’t operate without the help from the mother sun. I’m talking of having a solar cooker, cooking under the sun project.
Will you spend some bucks or rather choose the pocket friendly unit? I guess all of us prefer money saving units. Absolutely it could, the sun continuously gives us the heat and solar energy more than we ever need. So, the solar cooker, cooking under the sun project is definitely durable when we speak of operational source of energy.
Let’s try to make use of readily available sources within the vicinity for our solar cooker.
Things needed:
- Foils or mirrors as reflectors
- Conductive Materials
- Stand (for the food)
The construction of a solar cooker is very easy. A solar cooker is usually a box style that’s made with conductive supplies. The longer it is exposed to the sun the hotter the unit gets. The reflectors help centralize the solar heat on the food that will be cooked.
The solar cooker could reach as high as 300 degrees temperature. Knowing on how to make a homemade DIY solar cooker project is another fun project for everyone. Enjoy the heat and let’s eat!
Article You May Be Interested In Reading: Solar Garden Lights
