Effects of Magnetron Arrangement and Power Combination of Microwave on Drying Uniformity of Carrot

Abstract

The effects of magnetron arrangement and microwave power combination on the drying uniformity of carrot were investigated in this study. The drying uniformity was influenced by magnetron location and quantity. Using one magnetron resuted in poor drying uniformity. However, when two magnetrons were applied, the drying uniformity was 80% after drying for 16 min, which was 93.49% when power combination of three magnetrons at powers of 400, 500, and 600 W were used. The optimal magnetron locations and a suitable microwave power combinations were determined to improve the drying uniformity of carrot.

Keywords:

• Carrot
• Drying uniformity
• Magnetron
• Microwave

ACKNOWLEDGMENTS

We are grateful for financial support from the National High Technology Research and Development Program of China (Grant No. 2011AA100802) and the Priority Academic Program Development of Jiangsu Higher Education Institutions.