Daelim Builds Zero-Energy-Consumption APTs for the First Time in Korea
DATE 2013.08.07
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Daelim Builds Zero-Energy-Consumption APTs for the First Time in Korea
Daelim announced in August 2013 that it is constructing Samcheok Green Power’s staff APTs as 100% energy self-reliant buildings in heating and cooling in Samcheok City, Gangwon Province. It is the first case of an APT complex where many residents reside. APTs need to reflect the accurate prediction of heating and cooling energy use amount in the design. Actually, such zero-energy-consumption APTs’ commercialization was difficult since large-scale renewable energy facilities have to be constructed.
Slated to be completed in March 2014, the staff APTs of Samcheok Green Power consist of 13 buildings and 100 units. With the problem of electric power shortage worsening in summer and winter, Korea Southern Power designed those APTs and placed an order for their construction as Korea’s best energy-reducing APTs aimed at easing the electricity shortage. The buildings are built as 100% energy self-reliant buildings including auxiliary facilities such as fitness center, book café, children’s room, and senior citizens’ center. Such design enables saving on heating and cooling energy cost by KRW 80 million annually. CO2 emissions are also expected to be reduced by more than 237 tons annually.
All energy required for heating and cooling will be supplied through the geothermal energy system installed underground. In summer, the underground temperature, which is relatively lower than the atmospheric temperature, is used for cooling. In winter, heating is provided by absorbing geothermal heat. All the buildings in the APT complex can maintain 26˚C and 23˚C on the average in summer and winter, respectively, using the geothermal system. Geothermal energy is also expected to be used for hot water. The electric power needed to operate the geothermal system will be supplied through the photovoltaic power generation system installed on the roof of a building.
Various energy saving technologies including complex insulating method, highly airtight thermopane, and waste heat recovery ventilation system are also applied. In particular, the complex insulating method involves attaching double insulators in and outside a concrete wall, and its performance in terms of suppressing the thermal bridge phenomenon is much better than the existing inside insulation method. Thermal bridge refers to the outflow of indoor heat or chill outside of a building through floor and wall. In addition, the recycling of heat energy of polluted air discharged from ventilation will be used for heating and cooling by recovering the heat energy through the installation of a waste heat recovery ventilation system.
