Solarta: Photovoltaic solar energy, solar thermal energy, solar energy Mallorca, renovable energy Mallorca, solar modules

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Asociación de la Industria Fotovoltaica
Asociación de Empresarios de Instalaciones Eléctricas y de Telecomunicaciones de Mallorca
Federación de la Pequeña y Mediana Empresa de Mallorca
1º Solar system Autoconsumo
Verified by GESA
Solarta Certified according to
ISO 9001

Schematic diagram of hot water and heating systems
Schematische Darstellung von Warmwasser- und Heizungsanlagen

1. Water heating
The cold water enters the solar collector at the lower part and leaves, then heated, at the upper part to the storage tank. Later, the water flows backs to the collector one more time. This way it is continously circulated in the so-called primary circuit.

The control electronics activates the circulation pump in order to circulate the water whenever the absorber temperature is higher than the storage temperature.

The hot water in the solar absorbers primarily heats the storage tank filled with domestic hot water via the heat exchanger. This water is then used to take a shower, cook or, if connected, operate a washing machine or dishwasher. This helps to save electricity and gas.


2. Comprehensive solar systems for heating water and supporting space heating
After having stored the energy for domestic use, the surplus energy is transmitted to a downstream storage tank via the secondary heat exchanger. This storage tank contains hot water used for heating. It is distributed over underfloor heating systems or heaters.

Floor heating systems present the highest energy efficiency and greatest savings. In the low-temperature system, water (temperatures of between 30°C and 45°C) circulates within tubes so that the floor reaches a temperature of between 22°C and 27°C. This way, uniform, pleasant and healthy room air conditions are provided.

If a solar thermal system cannot provide the necessary amount of energy, this is compensated by an auxiliary energy system. The most efficient conventional systems are boilers (gas or diesel) or pellet heating systems.

Depending on the different measurements, the control electronics decides when it is necessary to connect the auxiliary energy system and when to automate the integrated operation of the system.

Furthermore, the surplus energy resulting from periods when heating is not necessary, is transmitted to your pool via the heat exchanger, providing comfortable temperatures and prolonging the swimming season.
Comprehensive solar systems for heating water and supporting space heating

It is also possible to dimension solar thermal systems with exclusive applications of climatizing the pool.
For single pools, a very cost-effective solution is a climatization system via polypropylene collectors (without glass cover and without insulation).

They extend the swimming season at the beginning of spring and at the end of autumn.

The new Spanish legislation RITE on solar thermal systems in buildings prohibits the use of energy sources, which are not renewable, for heating pools inside or outside and prescribes the obligatory use of solar energy amounting to 70% of the annual thermal requirements.

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