Heating and cooling the tallest buildings

At 462 metres tall, the new skyscraper dominates the skyline of the city, and will form the centre of a new business district. The project’s ambitions extend well beyond breaking height records – it has also set bold targets when it comes to the building’s environmental impact, both in its construction and continued operation.

One of the most distinguishing features of the Lakhta Centre is its double façade skin, which allows for thermal insulation and natural ventilation. It is estimated this will reduce heating and air conditioning consumption by 50 percent. In addition, conventional heating devices have been replaced by infrared radiators that can reuse heat emitted from other devices, and sensors will automatically adjust temperature and lighting according to the number of people in each room.

Among the other energy-saving components of the Lakhta Centre’s construction are 61 Alfa Laval gasketed plate heat exchangers, which will be used for heating, ventilation, hot water and air conditioning. Due to their high heat-transfer efficiency, the heat exchangers will minimize heat loss. They will also reduce the water consumption needed for power transfer and, by extension, reduce the energy consumption for water pumps.

The Lakhta Centre is just the latest of many exceedingly tall skyscrapers where Alfa Laval equipment is used for climate control. Others include the Burj Khalifa in Dubai, the Shanghai Tower (the first and second tallest buildings in the world respectively) and the Bank of America Tower in New York.

The tallest buildings in the world

1 | Burj Khalifa
Location: Dubai, United Arab Emirates
Height: 828 metres

2 | Shanghai Tower
Location: Shanghai, China
Height: 632 metres

3 | Abraj Al-Bait Clock Tower
Location: Mecca, Saudi Arabia
Height: 601 metres

4 | Ping An Finance Centre
Location: Shenzhen, China
Height: 599 metres

5 | Lotte World Tower
Location: Seoul, South Korea
Height: 554.5 metres

6 | One World Trade Center
Location: New York, United States
Height: 541.3 metres

7 | Guangzhou CTF Finance Centre
Location: Guangzhou, China
Height: 530 metres

8 | Tianjin CTF Finance Centre
Location: Tianjin, China
Height: 530 metres

9 | China Zun
Location: Beijing, China
Height: 528 metres

10 | Taipei 101
Location: Taipei, Taiwan
Height: 508 metres

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