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Download RAW file: https://library.csbe-scgab.ca/docs/journal/31/31_2_265_raw.pdf
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Description: The drying behavior of single layers of peanut pods and kernels fully exposed to different levels of microwave power at 2450 MHz was investigated. An experimental thin-layer microwave drying apparatus was designed and constructed to monitor weight loss during drying. Freshly dug and partially dried peanuts were subjected to effective power levels ranging from 250 to 1000 W. Airflow rate, temperature and relative humidity were kept constant at 0.1 m/s, 22?C, and 30%, respectively, to determine the effect of microwave power on drying rate. Drying rates ranging from 10 to 94 times the normal rate of con ventional wagon drying were achieved for pods and 8 to 32 times for kernels. Final seed temperatures ranged between 41 and 58?C. A twoterm exponential thin-layer drying model accurately described the drying behavior of pods and kernels over the entire period. Overall equations were established to predict the drying of pods and kernels with respect to time and microwave power level.

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Citation: C. St. John and L. Otten 1989. THIN-LAYER MICROWAVE DRYING OF PEANUTS. Canadian Agricultural Engineering 31(2):265-270.
Volume: 31
Issue: 2
Pages -
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Date: 1989
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Type: Text.Article
Format: PDF
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Coverage: Canada
Language 1: en
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Rights: Canadian Society for Bioengineering
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