Georgios A. Kelesidis¹, Mohammad Reza Kholghy², Joel Zuercher², Julian Robertz³, Martin Allemann³, Aleksandar Duric³ and Sotiris E. Pratsinis⁴, (1)Particle Technology Laboratory, Institute of Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich, Zürich, Switzerland, (2)ETH Zurich, Zürich, Switzerland, (3)Building Technologies Division, Siemens Schweiz AG, Zug, Switzerland, (4)Particle Technology Laboratory, Institute of Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland