. Solar energy - solar systems

Heating Repair Greensboro NC - In this article, the operation of solar thermal systems is explained for heating water and heating support. Another form of energy by means of solar energy is the so-called photovoltaics where the solar energy is used to generate electricity. The principle of operation of photovoltaic systems is not explained in this article.

Step 1: A solar panel collects the energy emitted by the sun in a solar absorber. The heat is transferred to the underlying piping system.

Step 2: In order to transport the energy in the pipes, it is a mixture of antifreeze and water which acts as a heat transfer medium. Due to the heat transfer medium, the energy is transported to the solar storage tank where the water is heated by a heat exchanger.

Step 3: If the case that the temperature in the solar storage tank is lower than the temperature of the absorber, the solar electronic controller activates a pump that enables the solar circuit to move and thus compensates for the temperature difference.

Step 4: The heat exchanger has now cooled, the mixture which then flows back into the solar collector and the whole cycle can start again.

Good sized solar systems can provide up to 70% of the hot water requirements are available on an annual average. In well-insulated houses, the heating can be supported by about 30%. Of course, with more collector area and larger memory sizing always greater coverage rates are to be achieved, however, the cost always be in a reasonable relation to the transaction.

Usually you go in the dimensioning of solar systems for hot water assumes that per person approximately 1.5 m² of collector area and 80 - 100L storage capacity should be available. Depending on the orientation of the collectors can of course vary up or down this value. The ideal orientation of the solar panels on the south side, of course, but also deviations up to 50 ° to the south-east or south-west are hardly associated with yield losses. A fully west-side alignment, however, leads to yield losses of up to 30%. Should the house be oriented west side, one should draw a free-standing installation of the collectors considered.

In considering how this should be especially the long-term savings in energy costs to keep the purchase of a solar system in mind. In addition, solar systems are funded by the state and therefore pay for themselves more quickly. Minus the number in Germany BAFA promote well-sized solar systems pay for themselves in 7-15 years. The life of a solar system or photovoltaic system with 25 - .30 indicated years.