Title :
Temperature management strategies for a 9kw hybrid FIR-convective fruit dryer
Author :
Adonis, M. ; Kahn, MTE
Author_Institution :
Cape Peninsula Univ. of Technol., Cape Town
Abstract :
A range of infrared heater temperature management mechanisms for a hybrid FIR-convective fruit dryer were designed and tested. The dryer was implemented in order to produce commercial grade apple chips. The infrared heater was subjected to a step-down power converter under current-mode and voltage-mode control. A buck converter was designed and tested to gauge its effectiveness. Simulations were performed on the various system configurations incorporating the buck converter in order to observe their responses to disturbances. In addition these systems were placed under classical control methods and a basic synergetic control scheme.
Keywords :
DC-DC power convertors; convection; drying; electric current control; food preservation; food products; heat treatment; power control; radiation effects; temperature control; voltage control; buck converter design; commercial grade apple chips; current-mode control; hybrid FIR-convective fruit dryer; infrared heater temperature management strategies; power 9 kW; step-down power converter; synergetic control scheme; voltage-mode control; Buck converters; Control systems; Costs; Infrared heating; Power control; Power system management; Sliding mode control; Temperature control; Testing; Voltage control; Hybrid FIR-convective dryer; fruit drying; infrared heating; power control;
Conference_Titel :
AFRICON 2007
Conference_Location :
Windhoek
Print_ISBN :
978-1-4244-0987-7
Electronic_ISBN :
978-1-4244-0987-7
DOI :
10.1109/AFRCON.2007.4401622
