Savonius rotor

Savoniův rotor uses the energy of the wind on a different principle than the propeller. It has other characteristics, the more favorable especially in low wind. In the book is described in detail the construction of the facilities and especially all the possible applications, such as pumping water, the production of compressed air, but mainly to the production of electric current. In detail, are discussed all types of generators ac and dc current, with excitation permanent magnet and continuous winding supplied by an external source. For all the structural variants are in tables and graphs demonstrated operational characteristics. Building instructions are accompanied by detailed drawings and diagrams. The obtained performance is up to 1 kW.

návody

Thermoelectric generator

The production of electricity by conversion of heat differences to electric current. The principle of Peltier cells, which are widely used for cooling, finds application as a thermoelectric generator. Just make different temperatures on the two surfaces

Sun 6 min read

Sand energy storage

Sand is a suitable material for energy storage? When, after a sunny day we'll come to the beach at night and get our hands in the sand, will be tepid. In our country must do a children's sandbox

ukládaní energie 6 min read

Savonius wind turbine

A genius, a widespread turbine bearing the name of its inventor, can benefit the energy of the wind from the low speed and at the same time, it is structurally very simple and the final product from a variety of materials.

wind 6 min read

Domestic biogas plant

Biogas plant at home in the backyard? Many agricultural cooperatives has today in the premises of the biogas station. The idea of home bioplynky in this context is somewhat surprising. Yet, in countries in Asia and Africa small

bioenergy 6 min read

Compost water heater

All lies! Why we neohřáli a little bit of water. Every experienced gardeners has in the garden compost, where it stores the plant surplus from the garden. In addition to the quality of humus, however we can from the compost pile to get

bioenergy 6 min read

Vertical omnidirectional turbine

Spinning polamu, but surely! It is at the hobby shop is very popular thanks to the simple design, the use of commonly available materials, and last but not least, for your easy to understand the principle. Also leaves considerable space

wind 6 min read

Wind turbine – basic division

Let it go! A device for converting wind energy to kinetic energy. This is either used for cyclic movement as is the case with the pump on the water, the older the water mills, hammer mills... Current

wind 3 min read

Geothermal tunnel

Bury the pipe and you'll see. It is possible to use the energy, which is located just a few meters below the surface of the heating, cooling? Of course, heat pumps ground water used this possibility. But it is possible

cooling 3 min read