Wednesday, April 22, 2009

How To Enjoy Passive Solar Design


If you ever wanted to save electricity and to improve the comfort of your home without using any high-tech, and passive solar design is the answer.

Passive solar design is a technique of using the sun to heat and light to your home or office. This is accomplished through the use of different features and building materials to improve efficiency of heating and cooling. The best part about solar passive design is that it is relatively easy to implement, requires little maintenance, and home market value may increase considerably.

Your home for passive solar energy potential is determined by where and how it is and the types of windows and materials used. Although most buildings can be optimized to get the ideal amount of sun, it's easier if you are in a plain or sun-facing slope. If your house is surrounded by many trees, make sure they are deciduous so the shadow of his house in summer, but its bare branches by letting sunlight in winter. Also, try to avoid buildings that create too much shade.

When building a new house, make sure it is constructed so that the length of the house faces the sun, allowing the maximum amount of sunlight. We also note how the size, shape and placement of windows to determine the amount of heat and natural light in your home.

So how does the sun heat your home? There are three ways:
Gain direct - direct heat from the sun that shines on a surface.
Indirect gain - heat emitted by objects heated by the sun.
Isolated Gain - determined by the flow of air into your home.

To ensure the most natural heat from three sources, a large number of windows should be placed on the side facing the sun in your home, allowing maximum sunlight in.

All that sunlight and heat in your home is useless if it can not be stored and used when the sun is set. The solution is to use heat-absorbent floors and walls that carry the heat all night. A simple way to reduce energy costs in winter is to locate the rooms in your house that get the most sun at certain times of day. Furthermore, the shadow of rooms must be cut (closed) from the rest of the house to retain heat better.

During the summer, the length of the eaves or roof overhangs can be used to control the amount of heat and sunlight into your home. The wing must be wide enough shade the intense midday sun, but lets in sunlight through angle during dusk and dawn, to illuminate and heat the house. Once again, the right of the trees and shrubs can be planted for the regular-season home in the sun.

Existing buildings, passive solar design is the simplest solution to replace the windows with modern, using several methods to store up to 50% more heat. Although they are 10% to 15% more expensive, they pay for themselves in the long term of the energy saved in heating your home.

Double glazing or low-emissivity (Low-E) windows let in solar heat, but keep the interior of radiant heat. Another way to reduce heat loss is tightened to ensure all seals around the windows and the use of several panels that have differences between them filled with argon or krypton gas.

What windows are made of can make a big difference too. While the metal in general, window frames conduct heat from the house, wood, fiberglass and vinyl frames better insulate the heat. Always make sure any modern windows bought labels issued by the Energy Star or the National Rating of fenestration. These labels provide statistics on how effective and efficient are the windows retain heat which helps to acquire the right of the windows and the conditions of its budget.

So you can see, the passive solar design is the efficient use of nature and physics to maximize the use of natural light from the sun and heat. Remember, the point of passive solar design is to reduce their electricity use and bills. Is therefore recommended always weigh the costs against the potential energy savings when the installation of passive solar energy solution for any home.


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