Support nature – and nature will support you. In the language of modern technology, it is quite possible to translate as: “Go to green energy – and get 75% energy for free”. That is, using 25 kW of electric energy, you can receive 100 kW of thermal, which does not harm the environment and is self-restored. Karno Energy tells you about this free energy help.
Let’s start with the fact that all heat pumps are divided into two categories:
· for the private sector;
· for city objects.
In the private sector, ground-water, water-water, air-water heat pumps are used. That is, a private plot allows you to build freely the necessary communications in the soil or in the reservoir. When it comes to horizontal constructions, then 1 kW of calculated thermal power requires from 25 to 50 m2 of land/water area.
Urban facilities do not have free access to geothermal sources (water and soil). As an urban heat pump, engineering systems of air-air, air-water or power piles are used.
What efficiency of the heat pump depends on?
The efficiency is estimated by the following metrics:
· work-load during the year;
· the amount of energy received.
The greater the load and the more energy is received, the faster the technology will pay off. A well-balanced heat pump, which is used correctly, reflects its price during the first four years under operating conditions for 15-20 years before the first major overhaul.
Heat pumps with a reverse of the thermal circuit are considered to be most effective. This technique can be used throughout the year. During the winter weather season, the pump will provide the facility with warmth, and in the summer it will be cool. Load of the heat pump with reverse is 80%. Classic heat pumps (operating only in winter) provide a load of no more than 40%.
What pumps are used in Ukraine?
Heat pumps of this type are divided into horizontal and vertical. Horizontal systems are picked up to a depth of 3 m (the temperature at this depth is +8 ° C throughout the year). Structures for water are immersed at a depth of 2 m.
For vertical systems it is necessary to drill the soil to a depth of 30-250 m, the temperature of the medium can reach +12 ° C. The wider the hole, the smaller the depth is used. For a well of 30-70 m, it is better to use a hole for 280-300 mm. Vertical heat pumps for water are almost not used today.
Soil/water pumps can work independently of the outside air temperature. The technology will be stable in producing heat even at -40 ° C in the street
Techniques of this type can be installed anywhere, even on the roof of a multistory dwelling house. The air heat pump takes at least the useful area. The equipment is much cheaper than ground/water analogues, but as well as they can work year-round, providing heat in the winter, and coolness in the summer.
But air heat pumps have several significant disadvantages: an increased level of sound noise and temperature constraints (the air heat pump does not work at an air temperature below -25 ° C). When it is frost, you will have to use a standby heating system, such as a warm floor or classic radiator heating.
Taking into account the high level of efficiency, affordable price and easy installation, many homeowners prefer the air heat pump itself.