Teamwork (4 Personen). Entwurf für die neue deutsch-vietnamesische Universität in Saigon

What does a „green“ Campus mean? What is a „green“ Campus under the circumstances of a hot and humid environment? And what about climate change?
Starting by the concept for the new Vietnamese- German University we want to create a picture of a world-class university but on a level for everybody. This world-class ambition contains several specific government approvals and techniques which joins with the native Vietnamese building typologies to a new „green“ campus full of renewable energy. To the city, government and world we want to make a benchmark, here we are, sustainable and on a top position in research! Not only the campus should be open for all the students, but also the ground plot. We want to connect this German Principle with the Vietnamese house- typology: Narrow, long and high, with a typical house size of about 20 m x 5 m. Especially in the technical part we are looking for optimizing the Vietnamese Low-Tech system with the German High-Tech. Therefore our main aim was not to build a university like one we have here in Germany but our ambition was to create the perfect design and technique for a world-class school and environment.

The landscape is mutable. „Green“ campus plantings need special care. So we decided to plant our building roofs to get a special climate between this roof and the thermal acrylic- roof above. Along the short ways of the buildings we intend to plant some trees for slowing down the wind. But also in the towers we designed gardens for the interior climate.

In this stage of development of our culture we can‘t talk about a zero energy campus, but we can reduce it as far as possible. Besides the two roofs we also decided to use the lake as an energy reservoir. For producing energy we use the sun, for cooling the water, sun, and wind. Unfortunately the wind blows not fast enough to use it for electricity.
Cooling system: The water and the air appear in the building in the ‚green‘ marked part of the basement. Here is the center to cool and dry the air. How this works will be explained in the next two charts. If the air is ready, we let it flow into the core of our buildings. Here I will explain the system on the tower. With small vents the air gets blown into the offices or seminar rooms. On the windows on the top flaps are situated. Here the warm air exits the building into the facade. As the facade is warmer the air flows up to the top, where it will be let out. This system is in a way designed, that we can control the airspeed, which will be explained in the next picture.

Cooling system/ roof: Some of the clean water from the lake or the tank is heated up on the roof with high-efficient solar collectors. In this area we get about 80°C this way. Some of this water is needed in the technical center, some we pump through small water pipes between the facade and the building. With the sun and this hot water we heat up the air very fast and get a high acceleration of the wind speed. This speed sucks the air out of the offices without a vent. So we control with hot water the wind speed.

Interesse geweckt?
Der Entwurf "VGU-Saigon" gibt es auf Anfrage auch ausführlich als pdf.