Erasmus Romania 17-23 october 2015 Solar panels and insulation.

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Presentation transcript:

Erasmus Romania october 2015 Solar panels and insulation

To save energy, we have to realize a good roof insulation and to use solar and photovoltaic panels which produce green energy. Energetic saving

To insulate a roof we can use different systems An airy roof with insulating boards

An Airy Roof with Rockwool

Insulated terraced roof

Working steps

The Insulation of a tiled roof

Energia pulita, in abbondante quantità, prodotta in modo sostenibile e che comporta un risparmio energetico non indifferente. Un settore produttivo che in Italia fattura 35 miliardi di euro l’anno, corrispondenti al 2% del PIL nazionale. A lot of clean energy is produced in a sustainable way and with a considerable energy saving. In Italy this productive sector invoices 25 billions euros every year that is the 2% of the national GDP Solar and photovoltaic panels

Sketchy table of the radiation in Italy

There are different types of solar and photovoltaic panels

Solar panels

The principle of working is the photovoltaic cell The photovoltaic cells can turn directly the solar radiation into electric power, using the so-called “photovoltaic effect” that is based on the property of some specially treated conductor materials (such as silicon, a very common element in nature); in addition they can generate electric energy when they are hit by solar energy. When exposed to the solar radiation, a photovoltaic cell produces current that depends on the intensity, on the temperature and on the surface of the solar radiation. What a photovoltaic system is and how it works

A solar panel outline

How a photovoltaic system works

The fitting

Tile – shaped photovoltaic panels

Flexible photovoltaic panels

Types of photovoltaic cells: 1) mono-crystal cells, 2) multi-crystal cells, 3) amorphous cells Types of photovoltaic cells

These panels are based on an easy principle (a termic effect) that is hot water is lighter than cold water, so it “naturally” rises and goes towards the tank easily, without the help of any pump. Termic Solar panels

Termic solar panels to produce hot water

The outline

How it is made

Working system of the solar panels

Made by students class 4asa – 5asa Translated by Alice and Giulia 3al