Views: 833 Author: Site Editor Publish Time: 2026-10-20 Origin: Site
At an elevation of 3,116 meters in Kyrgyzstan's Tianshan Mountains, extreme weather conditions present significant challenges for heating systems. Winter temperatures in the region can fall to around -50°C, making reliable heating essential for remote industrial operations.
NULITE recently completed a ground source heat pump heating project for a mining company in this high-altitude region. The system provides heating for approximately 300 m², using a 23 kW R290 ground source heat pump as its primary heating unit.
Rather than extracting heat directly from the cold outdoor air, the system uses buried ground loops to exchange heat with the ground. The installation combines a ground source heat pump with an underground heat exchange network designed around the site's climate, available land and heating requirements.
Installing heating equipment in a remote mountainous region requires careful consideration of site conditions, equipment placement and system integration.
For this mining project, the NULITE ground source heat pump was installed as part of an integrated heating system serving approximately 300 m². The installation brings together the heat pump unit, underground heat exchange pipes and the building's heating circuits.
The system configuration was selected to suit the specific requirements of the site, where severe winter conditions make the choice of heat source particularly important.
The project's high-altitude location highlights the demanding conditions under which the heating system must operate. With winter temperatures potentially reaching around -50°C, relying directly on outdoor air as a heat source can place considerable demands on air source heat pumps.
As outdoor temperatures decrease, less heat is available in the air, and the heat pump's operating conditions become more challenging.
Ground source heat pumps offer an alternative by exchanging heat with the ground through buried piping. Ground temperatures generally fluctuate more slowly than outdoor air temperatures, providing a comparatively stable thermal environment for heat exchange.
For this project, the combination of extreme cold and sufficient available land made a ground-loop system a practical option to consider.
The ground-side system consists of eight independent ground loops, each approximately 200 meters long, giving a total buried pipe length of approximately 1,600 meters.
These underground pipes form the heat exchange network between the ground and the heat pump. During heating operation, the system transfers heat from the ground to the heat pump, which raises the temperature to the level required by the building's heating system.
On the user side, the heating system is also arranged in eight circuits to distribute heat through the building's heating terminals.
By coordinating the ground-side heat exchange network with the heat pump and the user-side heating circuits, the project integrates the main components into a complete heating solution tailored to the site.
Selecting between an air source and a ground source heat pump depends on several factors, including outdoor temperatures, available land, installation conditions and heating demand.
Air source heat pumps are flexible to install because they do not require an extensive underground heat exchange network. They are suitable for many residential and commercial applications.
Ground source heat pumps require more extensive groundwork and careful design of the buried piping. However, they can benefit from the relatively stable temperatures below ground, which are less affected by short-term changes in outdoor weather.
At remote sites with sufficient land and severe winter conditions, these characteristics can make ground source heating a suitable solution.
The Tianshan mining project illustrates how the selection of an appropriate heat source and system configuration can help address the challenges of heating in an extreme climate.
Heat pump applications extend beyond conventional residential and commercial buildings. Remote industrial and mining projects can also benefit from carefully designed heating solutions that account for local climate, land availability and building requirements.
For NULITE, this installation represents another application of heat pump technology in demanding site conditions, highlighting the importance of matching the heat source and system configuration to the needs of each project.
