On June 1, 2013, „TANGRA” completed the next stage of construction of the “Chernomorski” complex, which is part of one of the largest investment projects in Bulgaria carried out by the Russian Federation – SOK “Kamchia”. The sanatorium and wellness complex is located in close proximity to the Black Sea coast and the Kamchia River, on an area of 300 decares. The complex has the capacity to accommodate and educate more than 25,000 guests annually, making it a unique facility on the Bulgarian Black Sea coast.
SOK “Kamchia” is owned by the Government of the city of Moscow, and its construction began in 2002. The project is divided into nine sub-complexes, with TANGRA working on five of them: the “Longoz” hotel complex, the “Raduga” children’s wellness camp, the “Chernomorski” children’s wellness camp, the “Yuri Gagarin” educational and training center, and the “Zdravets” medical, diagnostic, and balneological center.
In 2009, the “Longoz” hotel complex was renovated and expanded with the “Longoz-2” annex. TANGRA installed the ventilation systems in all areas of the complex, including offices, training rooms, fitness facilities, restaurants, cafés and cafeterias, meeting rooms, the swimming pool, and laundry facilities. The “Longoz” project was awarded “Building of the Year” in the competition for the best realized investment project abroad in 2009 by the Government of the city of Moscow.
The complex places strong emphasis on energy efficiency, which includes full automation of all systems connected to a centralized control center. The total air exchange capacity of the ventilation systems installed by TANGRA is 46,000 m³/h, with a heating capacity of 760 kW and an efficiency of 55%. The complex is also equipped with a BMS (Building Management System), which allows for zonal control of installations, simplified operation and maintenance, quality monitoring, and rapid response in emergencies thanks to continuous real-time monitoring and remote access via the internet. The TANGRA team was also responsible for implementing the BMS systems.
The Raduga Children’s Health Camp was inaugurated in September 2010, with its construction completed in just 12 months. It is a complex that includes a hotel section with four buildings, a cinema, exhibition halls, and a community center. All parts are interconnected by heated passages, with a total gross floor area of 40,564 m². The community center houses a bowling alley, sports hall, dining area, banquet hall, confectionery workshop, kitchens, hobby rooms, library, music hall, and dance hall, where children can enjoy activities and learn new skills. These spaces are served by ventilation systems with a total capacity of 67,200 m³/h, efficiency of 55%, and heating power of 579 kW. The selected installations for Raduga Camp were designed taking into account the specific characteristics of the site, local climate, and year-round occupancy by people of different ages. In the cinema and exhibition halls, TANGRA systems handle 69,000 m³/h of air with 730 kW heating capacity and 55% efficiency, while the systems in the four hotel buildings process 77,800 m³/h of air with 377 kW heating capacity.
As part of the overall implementation plan for the Kamchia Health and Recreation Complex, the Zdravec Diagnostic and Balneology Center was completed in March 2011. The center is equipped with state-of-the-art medical equipment, offering guests facilities for physiotherapy, rehabilitation, mud therapy, electrotherapy, hydrotherapy, inhalation treatments, therapeutic massage, and infectious disease units. Like the other facilities within the Kamchia complex, Zdravec Center is energy-efficient. It features a climate system for heating and cooling during transitional seasons, as well as individual boilers and connections to two central boiler plants that serve the entire complex. Due to the specific requirements of the center, the ventilation systems have an airflow capacity of 9,000 m³/h with a heating power of 66 kW.
The „Yuri Gagarin„ Educational Center was inaugurated on September 1, 2012. In addition to functioning as a school, the center includes a digital planetarium, an aerospace center, a radio and television studio, and a Museum of Slavic Culture. The project has been named the “School of the Future”, as it combines extracurricular activities, a school, and a children’s camp within a single facility. The center is equipped with ventilation systems with a capacity of 76,000 m³/h and a heating power of 450 kW.
The overall construction of the Kamchia Sanatorium and Health Complex (SOK “Kamchia”) was completed in June 2013 with the opening of the Children’s Health Center “Chernomorsky”. „TANGRA” participated in the construction of the center between 2012 and 2013, installing systems with a centralized management system in the public center, with an airflow capacity of 103,000 m³/h and a heating power of 570 kW, as well as in the residential blocks of the complex, where the installed systems have a capacity of 49,600 m³/h and a heating power of 318 kW.
The high level of energy efficiency was achieved thanks to the ventilation systems installed by TANGRA, featuring 55% heat recovery for all facilities within SOK “Kamchia.” This allows the required energy consumption to be half of what would be needed in systems without heat recovery. Currently, the required heating capacity is 3,850 kW, and the total processed airflow is 497,600 m³/h. Without the energy efficiency measures implemented by TANGRA, the required heating capacity would have been 7,700 kW.
TANGRA’s involvement in one of the largest projects on the Bulgarian Black Sea coast is yet another testament to the high quality of its products. The high energy efficiency of its ventilation, heating, and air-conditioning systems remains one of TANGRA’s greatest advantages in both the Bulgarian and European markets.
