The two most characteristic properties of an ultrasonic wave are the frequency and the power. It is therefore important to determine the power in a given reactor. This can be done by calorimetry, i.e. by measuring the temperature rise in the vessel during sonication starting at thermal equilibrium with the surroundings (classic calorimetry) [1-3]. However, the classic ultrasonic calorimetry has...

Sound wave propagation arising from the highfrequency acoustic irradiation of a fluid can generate considerable stresses at the free surface of the fluid leading toward its destabilization and subsequent breakup. If the fluid comprises a polymer solution, the evaporation of the solvent from the aerosols that are generated as a consequence of the atomization process leaves behind a solidified po...