Comfortable natural ventilation and energy reduction

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In The Netherlands around 25% of the consumed energy is used for heating, cooling and ventilation in buildings. In order to achieve the climate objectives, energy must be saved and renewable energy must be used.

The question is how. One of the most appealing ways to do this is by using passive climate control. With passive climate control solar heat is utilized for heating, ventilation and cooling, based on natural air flows.

The challenge
But there is a fundamental challenge with passive climate control: controllability and manageability of the system. Since passive climate control is based on air currents that are triggered by natural present pressure and temperature differences, no control is possible in the basic form, because heat and cold buffering is not possible. As a result it is not possible to bring the supply and demand for cooling, heat and ventilation together.

The potential of passive climate systems is therefore far from being used sufficiently in practice. That is why it is necessary to develop flexible, practice-oriented passive climate systems that provide the necessary control and manageability.

Problem solving by working together
The only way to solve this fundamental challenge is to work together, because it is essential that theory and construction will be combined. This means the exchange of knowledge and information between researchers, advisers, developers, designers, producers, installers and other chain parties in the construction practice. It is also necessary to have a place where it can be tested, where it can fail, where it can be improved.

The Co-Creation Centre
The consortium Van Dorp, Priva, Hunter Douglas, TKI Urban Energy and Tu Delft work together to develop this new passive climate control system in the Co-Creation Centre at The Green Village. The Co-Creation Centre is a glass building and will become the event centre of The Green Village. If they succeed, they will create a building with comfortable natural ventilation and reduced energy consumption. 

Key elements of this research and innovation project in the Co-Creation Centre are:

• A climate tower with phase changing materials

• Smart solutions to control the influx of sunlight through facades

• Intelligent building management systems

For upscaling to be successful, four aspects have to fall into place: the technological system; the business model; the level of social embrace; and laws and regulations. Each aspect can be a show stopper. This means that after the building is finished, the test phase will continue. The real test may be when it is a hot summer day and there are 200 people inside the building.

The consortium consists of

Van Dorp
Hunter Douglas
TKI Urban Energy
TU Delft

The consortium responsible for the execution
Kroon de Koning
Royal Haskoning


For more information contact Tim Jonathan Program Manager Buildings: