Page 121 - Low Temperature Energy Systems with Applications of Renewable Energy

110 Low-Temperature Energy Systems with Applications of Renewable Energy

3.3.4.3 Lotte World Tower

In Seoul, capital of South Korea, the tallest building in the country and the fifth tallest
in the world opened in April 2017: the Lotte World Tower (Fig. 3.25). At 123 stories
and 554.5 m in height, it has 12 high-power heat pumps to provide clean energy for
heating and hot water supply of the facility. Six earth-coupled, brine-water heat pumps
each with a thermal output of 1.7 MWt and a cooling capacity of 1.9 MWt are fed from
720 wells drilled to 200 m depth. The other six heat pumps use river water as the heat
source. The total installed heating capacity is 22.2 MWt, and the cooling capacity is
20.4 MWt [12].
Other examples of heat pump installations for heating and cooling in buildings
include:
• Grand Hotel Dolger, Zurich - Refrigeration capacity ¼ 315 kW
• Hotel Ibis, Sydney - Refrigeration capacity ¼ 1163 kW
• Marriot Kauai, Hawaii - Cooling capacity ¼ 442 kW
• Alex Hotel, New York - Refrigeration capacity ¼ 1745 kW
• Hotel Bushan Hyatt, Dubai - Refrigeration capacity ¼ 3512 kW
• Hotel Canto do Sul, Brasilia - Refrigeration capacity ¼ 582 kW
• Hotel Vitoria Jardines Uleta, Barcelona - Refrigeration capacity ¼ 280 kW

©
Fig. 3.25 Lotte World Tower, Seoul; Kohn Pedersen Fox Associates, used with permission [12].