Systems that operate under pressure
Ready-made sets of thermal solar collector systems are a convenient and profitable solution for a home, cafe, restaurant or hotel, especially if the room has a high consumption of hot water or a lot of energy is spent on heating with a “water” circuit. At Sobstvena Energija you can order various sets of solar collector systems for your power needs.
The basic element of the system is a flat solar collector or vacuum, consisting of vacuum heat pipes (depending on the volume of hot water consumed, the number of pipes can be changed at the request of the customer).
Each of these tubes collects solar energy, transferring it to the heat carrier, which in turn, due to the operation of the circulation pump, circulates in a closed loop from the heat collector of the solar collector to the heat exchanger of the tank, transferring heat from the collector to the heated water. The vacuum tube of the solar collector is designed according to the principle of a thermos – the inner part of the tube is hot, the outer part of the tube is cold.
An indirect heating boiler is designed to heat, accumulate and subsequently use hot water (coolant) for heating and hot water supply to your home.
Using a tank battery in the system significantly increases its efficiency and safety, preventing boiling and other troubles.
The pumping station is used in a solar water heating split system with forced circulation and is designed to ensure the circulation of coolant in the collector circuit (tank-collectors-tank). The pump is turned on/off at the command of the controller, which measures the temperatures in the collector and storage tank. Together with the controller, the pumping station forms an automation unit that regulates the operation of the solar system. The hydraulic resistance of the collector circuit is quite small, this makes it possible to use low-power pumps whose power consumption is negligible compared to the thermal energy received from solar collectors.
A heat carrier for highly loaded solar systems, in particular with vacuum collectors. Commonly used materials in solar systems, such as copper, stainless steel and aluminum, are protected from corrosion attack for many years by special corrosion inhibitors.
Heat carriers were developed due to the increased use of vacuum collectors, which have a high idle temperature of up to +260ºС. Conventional ethylene glycol and propylene glycol fluids are prone to evaporation in such systems at high temperatures due to the low boiling points of these glycols. They leave partially insoluble, salt-like deposits that can cause operational problems. The solar heat carrier consists primarily of high-boiling, physiologically safe, high-molecular glycols with a boiling point above +270ºС.
The system generates heat even in winter when the outside temperature is -25 degrees Celsius. With the current cost of fuel for a boiler, the costs invested in such a water heating system pay for themselves within 2-3 years.