Simultaneous Heating and Cooling using 

Heat Pumps (히트펌프 활용 동시냉난방 시스템)

Heat pumps use the refrigerant cycle to pump up heat from a low-temperature heat source on the evaporator side and raise the temperature by supplying it to the heat sink on the condenser side. For example, a household air conditioner pumps up heat from relatively low-temperature indoor air in the summer and raises the temperature of relatively high-temperature outdoor air. However, this heated outdoor air is discharged into the ambient air through the outdoor unit. Simultaneous heating and cooling research explores methods to identify areas inside a building that require low temperatures and areas that require high temperatures in order to utilize all of this wasted heat, and to balance these loads.

Radiant heating and cooling systems

(복사냉난방 시스템)

Radiant heating and cooling systems transfer more than 50% of heat in the form of radiant heat. In particular, radiant floor heating is used in most housing in Korea, and research on it is also actively being conducted. It is gaining attention as an energy-saving building element because it can cool with water at a relatively high temperature compared to convection cooling, and can heat with water at a relatively low temperature compared to convection heating. In this laboratory, we study the development and performance evaluation methods of radiant heating and cooling systems. We are also studying energy saving and comfort enhancement methods linked to simultaneous heating and cooling systems.

Testing procedures for environmental tests

(환경시험 절차)

Environmental testing checks the appearance changes and performance maintenance of test pieces in various environments such as low temperature, high temperature, sunlight, and salt spray. Our lab is researching test procedures that enable environmental testing of various test pieces such as building-related components and systems (windows, insulation, etc.), as well as drones and solar panels.

Heat island reduction technologies around buildings (건물 주변 열섬 저감 기술)

The heat island effect around buildings is caused by heat from the building (e.g., outdoor air conditioner units). In our lab, we study waste heat recovery systems to alleviate this heat island effect, as well as sprinkler systems that can lower the air temperature and their effects.