Heat recovery efficiency: Measurement and calculation methods

The efficiency of air-to-air heat recovery ventilation units is of great importance for EP calculations (energy performance of buildings) throughout Europe. Efficiencies compared on a reliable basis are also crucial for contractors and installers of such systems.

Simulation of temperature and air flow in a second skin façade.

The Second Skin Facades can be an useful tool for increasing the efficient use of natural ventilation in order to decrease the energy consumption for ventilation and cooling purposes and to increase the indoor thermal comfort levels. To analyze this type of facades a simulation is set up. The simulation is carried out with the simulation code Simulink.