Steady increase in the prices of traditional energy sources – gas, coal and electricity makes investors increasingly considering the use of alternative heat sources. An equally important role in making decisions also plays an ecology – homeowners want to live with the knowledge that they don’t damage the environment and they don’t harm themselves and other family members. The additional ease of installation, operation and maintenance, and low heating costs also during the use of the building cause that ground source heat pumps assembled by OPTIMA POLSKA are very popular. They receive a heat from the ground by a ground heat exchanger, in which glycol solution circulates (called brine), mediated the heat exchange between the ground and the working fluid of a pump. The heat from the condenser heats the water which supplies a central heating installation.
The key to the effective work of a geothermal heat pump is a properly designed central heating installation, especially a lower heat source in the form of probes which draw energy from the depths of the earth, and this in turn is conditioned with a properly made drilling. Thanks to especially developed GRD technology (Geothermal Radial Drilling) – OPTIMA POLSKA obtains energy from the ground in an “intelligent” way. That generates lower costs of the heat pump installation and allows for maximum use of renewable energy source with less interference in the environment. The probes are placed in the soil radially, obliquely in different directions and at different angles. The entire installation of the probes is done by a specialized drilling machine (Geodrill), which at one point of the garden plot introduces the probes to a depth of 50 meters, radially, at an angle of 35-65 °. From one well it can be obtained even a total of 1400 rm of drilling, which allows to power larger installations based on the heat pumps. The drilling machine can operate in a small, tight space, regardless of the season (even in winter at negative temperatures), in a developed garden, in a building. Thanks to performing of drillings at angles, the probes can be installed even under an existing building, and the speed and efficiency of machine work ensure a reduction of costs of lower heat source execution.
The heat pump doesn’t produce energy like a boiler but it transfers a heat from the environment (in this case from a soil). This device delivers 3 to 5 units of the heat energy for every taken unit of electrical energy. That illustrates the energy efficiency ratio (COP – Coefficient of Performance). This is the ratio of received heat energy to provided electrical energy. The higher the ratio the more economically heat pump works.
Although the interest in these devices continues to grow, it doesn’t always go hand in hand with the growth of knowledge about their functioning. First of all, the heat pump allows to become completely independent from external suppliers of thermal energy. Heating by the pump exempts mainly from a concern about delivery and storage of fuel (coal, wood or heating oil) – a place for storage is not needed, which is another saving in the construction phase. In the calculation of the investment costs you cannot ignore the fact that in a building equipped with a heat pump there’s no need to perform a flue chimney or a gas connection, and even the boiler room – the device is “satisfied” with a corner in the garage or closet. The complete installation of a heat pump can be even cheaper than a coal boiler installation! Modern heat pumps heat rooms very efficiently, heat up utility water, and in a summer period they may provide air conditioning of building thanks to a temperature from the ground at the same time supporting the regeneration of the lower heat source. The heat pump offers an optimum comfort of living at the lowest possible cost of heating.
Our projects:
- Performance of a lower heat source for the ground heat pump in the form of geothermal probes in GRD technology in educational buildings in Wysokie Mazowieckie; length of drilling: 5826 rm
- Radial drilling in GRD technology and installation of a ground source heat pump with a capacity of 182 kW in a public building in the municipality of Wasosz; length of drilling: 3600 rm
- Installation of a heat pump with a capacity of 8 kW and performance of a ground heat exchanger in GRD technology in a residential building with an area of 150 m2; length of drilling: 300 rm (town: Choroszcz, municipality: Choroszcz)
- Installation of a heat pump with a capacity of 8 kW and performance of a ground heat exchanger in GRD technology in a residential building with an area of 140 m2; length of drilling: 250 rm (town: Porosły, municipality: Choroszcz)
- Installation of a heat pump with a capacity of 10 kW and performance of a ground heat exchanger in GRD technology in a residential building with an area of 235 m2; length of drilling: 300 rm (town: Krupniki, multicipality: Choroszcz)
- Installation of a heat pump with a capacity of 42.8 kW and performance of a ground heat exchanger in GRD technology in the building of the Primary School in Wyszonki Koscielne ( multicipality: Klukowo); length of drilling: 1260 rm
- Installation of a heat pump with a capacity of 10 kW and performance of a ground heat exchanger in GRD technology in a residential building; length of drilling: 300 rm (town: Pietkowo, multicipality: Poswietne)
- Installation of a heat pump with a capacity of 12 kW and performance of a ground heat exchanger in GRD technology in a residential building; length of drilling: 350 rm (town: Kleosin, multicipality: Juchnowiec Koscielny)
