| Abstrak/Abstract |
This paper investigates the energy performance of an office building with a ventilated
composite Trombe wall for winter heating application. The heating potential of composite
Trombe wall for an office building was estimated using the dynamic thermal load calculation
software, THERB for HAM. We designed a new composite Trombe wall which is oriented on the
south side of the office building, and designed pipe with the fan that can control
thermo-circulation, located in Kitakyushu, Fukuoka,Japan. The office building satisfies the Japan
thermal regulation. The central concrete core of the wall is covered with a layer of dark paint, to
improve absorptivity of the wall. In addition, to control air flow from the ventilated air layer to
the indoor, the ventilation rates of the fan were controlled at 40 m3/h. The effects of those fans
that is turned on and off at different time were also investigated. The temperature of the air layer
of composite Trombe wall and the room is simulated. The investigation showed that the
composite Trombe wall with optimized ventilation can reduce annual energy cost up to 3.7%
compared to the composite Trombe wall without air supply. |
