The installation of pipelines and air drawoffs is underway

“Work on the installation of internal engineering systems at the Tekstilshchiki station on the eastern section of the Big Circle Line (BCL) of the Moscow Metro is 50% complete”, said Andrey Bochkarev, Deputy Mayor of Moscow on Urban Planning and Construction.

“The installation of pipelines and air drawoffs is underway. In addition, the main equipment such as ventilation units and transformers are being mounted, and escalators and lifts are being installed. The main structure of the station is 90% complete, and its overall construction completion is estimated at 80%”, said Andrey Bochkarev.

According to the Deputy Mayor, the technical feature of the station is a heat pump system, which will be the main source of heat for heating and a source of cold for air-conditioning.

“This solution is used for the first time in the history of the Moscow Metro: the concourses in the metro are usually heated by connecting to the district heating network. At Tekstilshchiki, the heat pump will function autonomously, by using air coming from the tunnel. In this case, the city’s utility infrastructure isn’t involved. The heat pump is already scheduled to be installed in May”, said Andrey Bochkarev.

Mosinzhproekt Group of Companies is the general designer and general contractor for the construction of the new lines and stations of Moscow Metro.

According to Konstantin Maslakov, General Director of MIP-Stroy 1, this system is energy-efficient: it operates by using heat from the air extracted from the tunnels, where the temperature remains above freezing throughout the year.

“The heating system is based on the air-to-water principle. The heat extracted from the tunnels is directed into the system. Then, the heat energy passes through a condenser, where it transfers its heat to the heating system, then, it is cooled and condensed into a liquid. This process is repeated continuously”, specified Konstantin Maslakov.

The head of MIP-Stroy 1 added that the system would be housed in a block of technical premises and would operate in two modes: winter and summer. In winter mode, it will provide heating as well as cooling for premises with higher heat emission.

As a reminder, the Tekstilshchiki station is one of the four stations on the eastern section of the BCL. The length of the section is about 11 km. Its opening will improve the transport accessibility for a number of districts in the south-east of Moscow.

The construction of the Big Circle Line is the main project of the Moscow Metro construction. Its length will exceed 70 km, and it will accommodate 31 stations, 22 of which are already servicing the passengers.