| Abstract | Various attempts have been made to solve the condensation problem by
using existing building materials. However, passive condensation prevention material
has difficulty responding to indoor dew point temperatures that change depending on
the comfort range of occupants. It is difficult to prevent indoor air quality deterioration
because of mold and bacteria as condensation occurs repeatedly under certain outdoor
air conditions.
If thermoelectric technology that can immediately respond to a wide range of temper-
ature changes is used in the condensation prevention material, the condensation risk
can be eliminated in a building. Accordingly, in this study, it was derived that areas
where the indoor wall surface temperature in winter fell below the dew point temper-
ature with operating time. Based on the simulation results, it was analyzed the ap-
plicability of active condensation prevention material using thermoelectric module,
which can flexibly respond to the condensation risk according to the changes of indoor
and outdoor temperature and humidity, in building systems.
The average daily power consumption of thermoelectric elements per unit area was
analyzed as 727.20 Wh/m2
/day, 1,249.72 Wh/m2
/day, and 1,087.61 Wh/m2
/day at the
side wall, top and bottom of the front wall. The annual power consumption in one
apartment unit was 16.65 kWh/year at the side wall, 28.61 kWh/year at the top of the
front wall, and 24.90 kWh/year at the bottom of the front wall. Considering the health
of occupants, such as mold and bacteria caused by continued condensation, thermoe-
lectric active condensation prevention material is expected to have excellent economic
feasibility. |
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