Tag Archive | "material"

Mono Crystalline Solar Cells

Tags: , , , , , , , , , , , , , , , , , , , , , , , ,


Mono crystalline solar cells are the earliest form of solar cells. With the growing demand of energy in the world, the concept of renewable energy has attracted the attention of not only the scientists and researchers but also the consumers and common people.

How are mono crystalline solar cells formed?

There are several steps involved in their production and formation. But the basic outline of the procedure involves the following steps.

  • Cylindrical ingots of silicon are used for the preparation of these solar cells.
  • Ingots are long rectangular or oblong blocks of silicon.
  • Thin wafers are cut out of these oblong blocks of silicon.
  • The process of sawing is used the most frequently for cutting of the wafers.
  • Great care has to be taken since the wafers are extremely thin and the dimensions have to be very accurate.
  • Another important thing which is required is a rigid glass substrate.
  • The wafers of silicon are then deposited on the glass substrate.

Appearance of Mono crystalline Solar cells

These cells appear to be polka dotted. They have gaps at all corners of the cell this shape gives them a unique appearance. Among all kinds of solar cells, these cells are the most easy to recognize.

Read the full story

Using Solar Sunspaces In Homes

Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,


Sun rooms, green houses and “sun spaces” are a few terms that are often used interchangeably. But, there is a difference in all of these. It depends upon the purpose for which these are used. These are all used to retain heat from the sun. A brief note on all three is given below:

Sunrooms

It is a general term used for those home extensions that use natural light and windows. You can convert that extended area into reading room because it has ample light. It can also be used as an area for playing games. Kids would surely love that. Another option is to make it your prayer room or store sacred items in that.

Sunrooms don’t necessarily provide heating around the area. These are simple lighted extensions in a home that can be used in various forms.

Greenhouses

Greenhouses are especially made to hold back solar heat. This energy is needed for the growth of plants. Optimal conditions required by plants are not favorable for home living spaces. Moreover, in greenhouses it is important to control high temperature and excessive level of humidity. Otherwise, it is hard for plants to survive.

In a house attached with greenhouse, if windows are fixed in place of insulated walls, house can use more energy.

solar sunspaces and their purpose

Solar sunspaces work differently from greenhouses and sunrooms. These are supposed to collect solar heat that is distributed throughout the home. Since, there is no mechanical equipment or device needed; it is type of passive solar heating.

What are the main advantages of solar sunspaces?

Passive heating system has many advantages over active heating system. Sunspaces are built using techniques that integrate well into the design of a house. These go with the building structure and material, therefore these are not expensive.

Another benefit of solar sunspaces is that these are easy to maintain. There are no solar panels to clean or repair as in other active heating systems.

How sunspaces work?

A combination of direct and indirect solar heat gain is used in sunspaces. They can serve as storage area in the form of an attached room. Where is the solar collector in a sunspace? The space in the attached solar sun space acts as collector. It retains natural sun heat to keep room warm.

Read the full story

Steps To Make Solar Power Generator

Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,


Are you interested in making a solar generator within a budget of 350 USD? Then you have to follow the following instructions. The cost of the solar generator entirely depends upon the material that you use while construction. The solar generator will generate up to 100 watt-hour of electrical energy if the solar panel of 20 watt receives solar energy for more than five hours per day.

Important components of generator

Important components of generator

In this particular design that you are going to learn, we are going to use a rechargeable battery that can store more than 400 watt of energy.  First you have to pick a reliable solar panel that is rated at 12 volts. You can easily get such solar panel for less than 175 USD. You are suggested to get a charge controller of 4 amperes, which is readily available for 25USD. Battery is the most important factor of this design. Therefore, you should get a 32 amp-hour battery that is available for 60 USD.

Power inverter and installment of components

You can attain power inverters for less than 30USD. Next you are recommended to grab a voltage meter that is going to be used to monitor the load on solar generator. A wooden box or a plastic cooler are suggested to be used for the enclosing purposes. You have to drill a spot on the cooler to fit in the parts that are being discussed before.

Precise connections

The next step includes the connection of the insulated wires with the battery from the meter. Keep in mind that you have to connect the positive terminal first. Read the full story

Benefits of Solar Film

Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,


Some of the most brilliant innovations seem today are a result of the creation of science. Advancements in science have enabled a lot of beneficial creations to come into existence. These creations have proved to be very fruitful in solving the issues which man faces in day to day life. Sunlight is a very important medium which provides Earth with its prime form of energy. However, Sunlight also carries with it some harmful rays which may cause Cancer.

Solar Film – A Protective Shield

Solar Film – A Protective Shield

Apart from Cancer, the rays within Sunlight may be the cause of Eye Cataracts and Rashes on the Skin. These rays are known as the Ultra-Violet Rays. Ultra-Violet Rays belong to the radioactive category of energy which must be filtered before it comes into human contact in any possible form. One of the best and most amazing products which may filter out Ultra-Violet Rays include Solar Films. Solar Films are the ideal option for one to consider.

Shield from Cancer Rays

The Solar film has been developed by experts while finding ways to reduce Ultra-Violet Rays which come into human contact. Such Ultra-Violet Rays are filtered out by the small and minute cells present inside the Solar Film. A Solar Film can be purchased easily from any retailer of Hardware shop or from any certified or renowned brand.

Filtering Harmful Rays

Many countries worldwide are making use of Solar Films as it can seriously cut the level of U-V Rays. These rays are filtered by the path breaking technology used to create Solar Films. Read the full story

Working of Solar Panels

Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,


The working of solar panels is not a complex thing to understand. It is very simple and can easily be understood. In this simple process, sunlight strikes a certain type of material where it excites electrons and generates a current and voltage. That voltage can be utilized to empower devices. Following is the explanation of the working of solar panels.

Silicon as Semiconductor

Silicon as Semiconductor

Silicon is obtained from the earth. It is one of the most abundant elements of the earth. It is readily avoidable in all types of sand and rocks. Silicon is a semi conductor that is used for various purposes. Copper is also used as conductor in copper wires. Rubber is an insulator that is used to coat the copper wire. Silicon is half insulator and half conductor that is why it is known as semi-conductor. Read the full story

Cheapest Method to Build Solar Panels

Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,


First of all one must understand what is a solar panel .A solar panel is use to gather heat directly from sun. The panel re uses the energy that will be in the form of electricity. It can be use in different areas like to run your fan, lights, geysers etc .Now a days solar energy is becoming very common mostly  people want to gather information about it .

Solar Panel Mechanism

SolarPanels


A solar panel comprises of a flat sheet of a material which is used to convert the heat of the sun into the usable electric energy. Mostly people who are aware about this are installing solar panels in their houses to cut the cost of electricity .But one must have awareness about the product that what it is, what are its benefits, how it will benefit me etc.

Environmental Friendly

Solar energy is very important if we talk about the environment .One of the main advantage of solar energy is that it doesn’t harm the environment or the nature as it doesn’t emits carbon.

Why You Want a Solar Panel?

One of the main features of solar panel is that it is environment friendly .

Read the full story

Nuclear Power – Alternate Energy Source

Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,


Scientists agree that power generation through fission reactions of atom commonly known as nuclear energy is an important alternate energy solution. This is because of its vast potential to generate power.

Efficiency of Nuclear Power Plants

Nuclear power plants consume most of their input and their performance is pretty amazing. Most preservationists show their reservations on the use of nuclear energy as a source of alternate energy source. They claim the residue material, which is in the form of radioactive gases is dangerous to environment. To address their point of concern, the efficiency of the nuclear power reactor is used as a yardstick. Nuclear power is produced at 80% efficiency, which means that output of the fission reactions is more or less equivalent to the input. This results minimal residue substances. In production of power through other sources also creates residue material. There could be no mean of power generation without leaving the residue material. Off course, there is residue material in this technology too.

Read the full story

Efficiency of Biofuels

Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,


Biofuels can be created with the conversion of natural material into power in order to strengthen the people. These biofuels are also an alternative energy resource as against the relic sources of power that we are presently using.

Biofuels Chemicals

The umbrella of biofuels comprise of a chemical substance ethanol and end products of couple of plants, like sugar cane. These also consist of corn oils. It should, however, be kept in mind that complete set of ethanol products are not premeditated as a petrol source. In this regard The International Agency has disclosed that within the time of fifteen years, ten percent of global petrol will be made by ethanol. This figure will rise to 30% in 2050 and currently the amount is only 2%.

Energy Efficiency

Nonetheless, it is long process to purify these biofuels and make these usable. In this regard, the Oregon State University has also unearthed the fact through their research that still we need to widen the energy resourceful biofuels, because gas is prepared from the fuel. Energy efficiency gauges the total quantity of functional energy that we require is resultant of particular quantity of input power. So far, not enough energy has been derived for our needs.

Read the full story

Solar Powered Refrigerator

Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,


In third world countries, solar power refrigerators are used most commonly. These solar refrigerators works by harnessing the solar energy, and they preserve the goods like meat, vegetables and dairy. The much needed vaccines are also placed in those refrigerators to avoid them from spoiling. The portable devices of the solar refrigerators can be constructed easily by use of simple components, and it really works in the areas where there is no electricity or unreliable power supply.

Solar Powered Refrigerator

Different size and technology solar power refrigerators are being already employed in Africa. The biggest challenge for solar power refrigerators is unreliability of the sunshine, as its available several hours in the day but sometime it’s cloudy for days. So to have constant refrigeration phase, change material is added.

Solar Refrigerators Impact on Environment:

Conventional refrigerators are having some dangerous impacts on the environment such as contributing to ozone layer depletion and global warming. The substances in refrigerators that cause the ozone layer depleting and global warming are chlorofluorocarbons (CFC’s), in their insulation foam or their refrigerant cycle are the most harmful. In 80′s, CFC’s were banned then they were replaced with substances such as hydrochlorofluorocarbons (HCFCs) and hydrofluorocarbons (HFCs) both are the ozone depleting and contribute to global warming chemicals. Solar energy use for refrigeration tries hard to have minimum impacts on the environment. Read the full story