Radon measurements in Big Buildings

Developing a standard protocol

Modelling & simulation

The modelling and simulation section is divided in four different groups/topics:

  1. Defining big building parameters
  2. A major challenge of this project is the definition of parameter. Each one should describe the real fact in a mathematical way, like for example the number of rooms and their surface in square meters. But also more complex details like the presence of an air conditioning system including flow rate per room, or the existence of elevators which may cause an air flow in all directions including radon transport.

  3. Defining measurement metrologies
  4. Important is not only which parameters to measure, also how. The team will establish metrologies in this context.

  5. Defining survey design
  6. Taking the results of both previous tasks and transforms these to existing structures, selected by the BR team.

  7. Simulation of dynamics of Big Building objects
  8. The simulation of diverse building types, including the parameters established is the challenge of this task. An important role in this case plays the incoming and outgoing air flow and its dynamics inside the building, taking all parameters (air conditioning system, elevators, etc.) into account. The results will be compared to the results of the measurements. Aleksey developed a promising model of multi-floor buildings modeling entry and ventilation rates using differential equations, taking also elevators into account. Now we are intensively searching for buildings for measurements and compare with simulations. In the meantime 100 dosemeters from Landauer arrived at the headquarter. These will be used to measure in detail the Swiss National Supercomputing Centre building in Lugano.