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Tag Archive | "greenhouse"

Isolated Solar Gain – A Passive Solar Heating System

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Passive solar heating has three types and isolated solar gain is one of these types. The other two types are direct gain and indirect gain, when in area solar heat is collected and used in another are then isolated solar gain is said to be happened. It considered passive system because there is no mechanical or electrical device is used such as fans, pumps and fans.

Use of thermal masses

Use of thermal masses

Fans are mainly used for transferring heat to the parts of the home from an isolated space. Isolated solar gain commonly consist of sunspaces the heat from these sunspaces or sunrooms move through conductors. These sunspaces mostly utilize thermal masses; masonry wall, water container and masonry floor are commonly used thermal masses. These are used for absorbing solar heat and are installed in the southern side of the home.

Heat circulation and collection in the home

For the circulation of the room temperature low-emissivity windows without glazing is used. The self-contained spaces are heated in the day time, these spaces are well-insulated. Read the full story

Make Use of Solar Refrigerators

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Solar refrigerator are environmental friendly, as they cut down on the greenhouse gases because they are not reliant on fossil fuels to run.

Solar Refrigeration by Photovoltaic Cells

Solar Refrigeration by Photovoltaic Cells

Photovoltaic or solar cells are used to produce refrigeration. These solar cells utilize the solar power energy and convert it into electrical power. Solar refrigerators also contain thicker insulation hat is typically about 4 inches. Initial expense of buying a solar refrigerator is higher than the conventional refrigerator or electrical refrigerator.

Features of Solar Refrigerators

These refrigerators are small in size, jus about the chest size. Despite of high initial costs, they are still cost-effective than electrical refrigerators. These refrigerators are portable and can be used anywhere, but most often they are used by cabin owners, remote home and RV owners. These refrigerators typically run on the backup battery of 12-volt and are capable of reaching temperatures of about 30 degrees cooler than the exterior temperature. These refrigerators do not require high amp-hour because solar panels are the primary source of battery recharging for these refrigerators.

Output of Solar Refrigerators

Models of solar refrigerators are typically marketed on the basis of their output in watts. Watts can be converted into amps by using basic equation that 100 watts provide approximately 6.25 amps or 16 volts when the sun is shining at its peak. It doesn’t account for solar intensity hat changes throughout the day. Read the full story

Installation Of Solar Panels

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At the present time because of the increasing cost of living and with the awareness of harmful effects of different products on environment we are always looking for products which are cheap and safe. Though many different ways have been discovered by the scientist to develop the products which are cost effective and environment friendly at the same time, but unfortunately many of these are still not being commonly used. One example is solar energy and if you learn how to install a solar panel, it will be much cheaper for you and safe for the environment at the same time.

 Solar penel

Learn to Install Things

People are always afraid of installing something, because it looks that they have a false belief this can only be done by people who are specially trained to do so. If you really want to cut down on your home expense I would suggest that you should learn how to install different things. Once you do so, you will be able to be free of many worries.

If we learn how to install a solar panel we will be able to cut down on our electricity bill. In view of rising electricity cost, it will be prudent to learn how to produce your own electricity free of charge and solar panel will go a long way in doing so

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3 Types of Solar Panels For Home and Garden

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Many people have heard about the solar energy panels and intend to use them in their gardens and homes. Many want to use them in place of the regular electricity. But the problem is that people have heard of them, but do not know how to use them. The other thing that might be a matter of concern for people is that will the solar panels be enough to fulfill their energy needs. We will tell you about different types of solar panels which are available for your home and garden. The aim is to create basic understanding about the solar panels the types of solar panels available in the market. We will also elaborates the functioning and cost of solar panels and suggests what type of solar panels can a you use for your home and garden.

Photovoltaic Solar Panels

Understanding the functioning of Solar Panels

Like any other form of energy solar energy is also a form of energy. The laws of physics tell us that energy can be converted from one form into the other. Likewise solar energy can be converted into electricity or heat energy. The solar panels do the job; they convert light energy into electricity or heat. Combined with phosphorus, boron or other elements the solar panels are made from silicon plates. The aim is to create solar cells which produce negative and positive charges. The two thin solar panels i.e. photoelectric modules and solar thermal collector are microscopically thin rectangle boxes which absorb the sunlight and convert it to heat or electricity.

Why Solar panels?

The solar panels are more environment-friendly medium of energy. Compared to electricity, solar energy pollutes the environment to the least and does not emit harmful gases which prove harmful for the environment.

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Space Solar Energy

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We need to first answer the question “what is solar power?” Solar power is conversion of sunlight into electricity. By space solar energy, we mean to say that this energy is collected in space for its use on Earth. The biggest issue that arise here is whether it is more expensive than using fossil fuels. YES ! It is expensive but once done, it will solve all the problems. Since 1960s, the idea of solar power has been brought in but no one has ever implemented it by creating a test model.

Solar power is beneficial because of the fact that it is space based and is not affected by the day and night cycles of the sun. In 1990′s a man named John Mankins carried out a study on NASA and concluded:

“But when you look at the kind of things we as a modern society spend billions of dollars on, (supporting) the idea of limitless clean energy from space is not such a bad goal.”

space solar energy

SOLAR POWER PROJECT:

Space is one of the most possible option though expensive but the best solution. Japanese government has stated that it is ready to spend 2 trillion Yen to produce 1 giga-watt solar power station into orbit. Many Japanese companies have signed in to support this idea and may also supply materials and modern expertise. Read the full story

Severe Effects Of Global Warming To Come

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According to the researchers of Purdue University and the University of New South Wales, Australia, we could face some severe effects of global warming quite soon. Although we have already seen a wide range of different natural disasters that all link back to the changing climatic condition, the researchers claim that if the green house emissions continue at the same rate, planet Earth would soon be inhabitable by humans and mammals.

global warming

Keeping in view the fact that if the temperature of the earth keeps rising considerably due to global warming, it will have extremely harmful consequences for living beings. The present pace of global warming is considered to be the maximum tolerable temperature for the survival of living beings that can be surpassed.

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How to Provide Solar Heat To A Home?

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Producing heat through oil combustion or electricity is an expensive way for a home heating. There is a second choice for heating a house, it is solar energy. It is an alternative and cost effective energy and affordable for everyone. In this essay you will learn about, how to provide both solar heat and domestic hot water system to our homes. A low cost ‘DIY solar heating panels can be benefited if we use it practically. Now we will discuss in detail.solar heating system

For Your Information:

In the day time, sunlight remains throughout the day for 12-hours. It means that it is available in maximum time than the fossil fuel reserves. Many people put off their solar collectors and PV panels, because they are much costly or they are unreasonable for the neighbors. Now the good news is that solar thermal roof may no longer be an issue in today energy market. It is affordable and cost effective and it is no more effect the aesthetes. The renewable energy house is designed for the small plant. PV application can supply the power and solar thermal application can supply the heat.

Both these applications supply energy according to the household requirements. A 5k PV system cost is about $ 50,000 and 10m² and domestic solar hot water system may be $10,000 if it is professionally installed. But the PV payback status is longer. Other DIY home heating DHW system cost  $2000. If you need to build your own solar thermal system for your home then first of all you should know about the basic knowledge about it.

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Causes Of Global Warming

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There are many causes that lead to Global warming, with each of the reasons contributing more to the increasing intensity of the climate change that has affected our planet.

causes of global warming

The main cause of global warming is the increase rate of greenhouse gases present in the earth’s atmosphere. These gases cause the the greenhouse effect, which traps the heat present on the earth by reducing the level of solar rays that are able to escape from our atmosphere.

Although the greenhouse effect is extremely important to support life on earth, by keeping our atmosphere warm enough to support life, the addition of human activities contributing to the quantity of greenhouse gases has caused an artificial increase in the intensity of the greenhouse effect, which has made this great phenomena a bad effect. Thus greenhouse effect is not bad, it is the increase in the amount of greenhouse gases that are causing the harm.

Why Is Solar Energy Important?

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Solar energy is extremely important for us to survive. Besides helping us to stay warm, and enabling other organisms to survive, it is used in the commercial power production as well.

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Solar energy is also essential for plant life as it is necessary for photosynthesis, the process through which plants generate energy and process nutrients for their growth by converting solar light for their own use by utilizing chloroplasts within their leaves and bodies.

Through this process, food is produced for other herbivores together with oxygen for us to breath and removal of carbon dioxide from the atmosphere, allowing creatures such as ourselves to survive while maintaining a balanced world temperature.

Solar Updraft Towers To Be Deployed In Namibia

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It seems that in the upcoming future era when there would be no need for fossil fuels and the need of renewable energies would have increased, then the best option available on the market would be none other than solar system.

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For making it efficient and cost-effective, it is needed that the sun has to shine all day long and the perfect place fulfilling this condition is the continent of Africa. The latest project that consists of solar updraft towers which will be built in Namibia and it is estimated that each tower would be able to generate 400 megawatts power.

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