In addition to these form-giving passive strategies, the building also features many passive strategies that are less obvious to the casual observer, such as the use of high-thermal-mass exterior glass cladding to reduce heat gain while keeping transparency to preserve views. Under the building, earth ducts were also used to reduce the building temperature through contact with the almost constant temperature of the earth below. The ducts also act as underground pedestrian passages that connect the building with the proposed mass transit system. Like local traditional architecture and except for exterior curtain walls, the buildings walls are to have a heavy construction of masonry with a 30% glazing ratio to achieve a high thermal mass and reduce the indoor heat gain.
Active Systems
In addition to passive strategies integrated into the building design, the design also employed a number of efficient active systems to cool and ventilate the building, including ground source cooling, an efficient underfloor air distribution system integrated into office furniture, and the world’s largest solar thermal driven cooling and dehumidification system on the roof canopy ( Figure 8).
The design also features the use of integrated renewable energy generation, such as integrated wind turbines and the world’s largest integrated Photovoltaic systems, both mounted on the roof canopy. The installation of these renewables would help bring the building from a net energy user to a net energy producer that produces 3% more than it consumes, thus creating a building that is not only carbon neutral but carbon negative (Figure 7).
In addition to these form-giving passive strategies, the building also features many passive strategies that are less obvious to the casual observer, such as the use of high-thermal-mass exterior glass cladding to reduce heat gain while keeping transparency to preserve views. Under the building, earth ducts were also used to reduce the building temperature through contact with the almost constant temperature of the earth below. The ducts also act as underground pedestrian passages that connect the building with the proposed mass transit system. Like local traditional architecture and except for exterior curtain walls, the buildings walls are to have a heavy construction of masonry with a 30% glazing ratio to achieve a high thermal mass and reduce the indoor heat gain.
Active Systems
In addition to passive strategies integrated into the building design, the design also employed a number of efficient active systems to cool and ventilate the building, including ground source cooling, an efficient underfloor air distribution system integrated into office furniture, and the world’s largest solar thermal driven cooling and dehumidification system on the roof canopy ( Figure 8).
The design also features the use of integrated renewable energy generation, such as integrated wind turbines and the world’s largest integrated Photovoltaic systems, both mounted on the roof canopy. The installation of these renewables would help bring the building from a net energy user to a net energy producer that produces 3% more than it consumes, thus creating a building that is not only carbon neutral but carbon negative (Figure 7).
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