Dieter Mewes
University of Hannover, Institut fur Verfahrenstechnik (Process Engineering), Callinstr. 36, 30167 Hannover, Germany
Rudolf Renz
Institut für Verfahrenstechnik, Universitäat Hannover, Callinstr. 36, D-3000 Hannover 1, Germany
The measurement of heat and mass transfer in liquids is of great importance for process engineering studies. For these studies three-dimensional fields of temperature and concentration have to be measured. These fields are in many cases of nonsteady-state nature. The task is to take measurements of the whole field simultaneously and not to allow this to affect the fluid dynamics of the system.