Fluidized bed with sensors for eco-friendly plasma disinfection of seeds
P.F. Lee (TU Delft - Electrical Engineering, Mathematics and Computer Science)
T. Ritmeester (TU Delft - Electrical Engineering, Mathematics and Computer Science)
Henk W. van Zeijl – Mentor (TU Delft - Electronic Components, Technology and Materials)
Jan van van Turnhout – Mentor (TU Delft - Team Erik Offerman)
L.F.A. Wymenga – Mentor (TU Delft - Electronic Components, Technology and Materials)
AJ van Genderen – Graduation committee member (TU Delft - Computer Engineering)
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Abstract
Disinfection of seeds is a method used by the seed industry to remove pathogens. However, conventional methods have their shortcomings in terms of energy efficiency and yield. This thesis focuses on the design of a fluidized bed setup with sensors for the purpose of DBD plasma disinfection.
Two configurations were investigated, namely a spouted bed and a bubbling fluidized bed, where the bubbling fluidized bed produced the best results. Additionally, the fluidized bed was equipped with motor speed control, and with sensors for the measurement of ozone concentration, temperature, humidity, air speed, and ion density. These sensors were integrated in an easy readout system using displays, making the system ready for testing of disinfection performance.