How it works

The water heating system works under any weather condition, cold or hot. It also works day and night, 24 hours a day, 7 days a week.

Introduction:

  • In the process of water heating, we utilize the energy of the environment. These are: solar radiation, heat from the wind, water from rain and so on. In order to use them, we use the laws of thermodynamics, formulated towards the end of the 18th century by French physicist Sadi Carnot.

    In the case of our thermodynamic solar panels, the concept of thermodynamics are applied. We utilize a refrigerating gas that evaporates at -26 degrees celsius. This gas allows us to transport the heat captured by our panels to the water, heating it up.

    Thus, although the panel may not be exposed to a maximum of solar radiation, we are able to capture the radiation from the heat of the wind and the rain, since the gas inside is in a state of 10 degrees celsius.

    Through a thermodynamic block we make it so the gas is heated, rising its temperature until 110 degrees celsius. Then, through an interchanger we are able to heat up water up to 55 degrees celsius, which allows us to give you the guarantee that you'll have hot water the entire year around, even in the coldest winter.

The Process

Thermodynamics:


The different elements used in the installation of solar heating are linked together via dehydrated copper tubing.

 The following components are used in the making of Solar Panels:

1.- Solar panels (getter).
2.- Compressor.
3.- Condenser (heat exchanger).
4.- Expansion valve.
5.- Thermal fluid (used as a refrigerant)

Refer to the diagram to the right to identify the components in a SolarPST water heating system.


Graphical diagram of components

In detail

Characteristics:

One of the key components in the solar panel water heating system is the refrigerants. The refrigerant is a substance of low boiling point, capable of absorbing large amounts of heat when it changes states.

In mechanical refrigeration, liquid and gas are used due to their ability to change easily from liquid to gaseous states and vice versa.

The refrigerant present in our panels (called 134A) has the following characteristics:

1.- Chemical stability at different pressures and temperatures.
2.- Fireproof.
3.- Non-corrosive.
4.- Non-toxic.
5.- Easy to detect leaks.
6.- Has no effect on compressor lubricants.
7.- High heat on evaporation.
8.- Does not destroy or affect the ozone layer.

The idea behind it:

The panels, when placed, are generally colder than the outside air (mainly due to the gas flow), the panels can then capture:
1.- Almost all direct and diffuse radiation from the sun during the day.
2.- The heat from the outside air by natural convection and the effect of wind and heat from rain for 24 hours.
3.- There is no problems related to expansion due to heat uptake.
4.- There is no risk of freezing.

Orientation of the panels:

The orientation of the Solar PST panels is of preference to the SOUTH, but it is also possible to orient them southeast and northwest. The the results for these variations are around 1 to 2% lower. Taking into account the effect of wind on performance, the panels should not be put under shelter, but rather, as exposed as possible. This way, the wind will affect frequently in winter, producing stable results.

Tilt panels:

The angle of the sun in relation to the horizontal varies with the seasons. In winter, the zenith, the rays are tangent. To take maximum advantage of sunlight on the panel, you should choose an inclination between 45 ° C and 90 ° C.

Risks:

As solar energy company guarantee that there is no risk whatsoever of overpressure in the summer. Panels are resistant to external aggressions. Total resistance to interior corrosion, galvanized 30 microns. Lower panel weight (8 kg.). No power supply is needed for defrosting and it has minimum maintenance required.