Effect of Convective Air Attributes with Microwave Drying of Soybean: Model Prediction and Experimental Validation

摘要: The heat and mass transfer that occurred during drying of soybeans by a combined process using microwave (MW) convective hot air was studied. A coupled mathematical model developed to simulate this phenomenon. soybean samples were re-wetted 20% wet basis, the selected level initial moisture content (IMC), then dried in domestic oven under various MW power levels from 300 390 W, inlet with relative humidity 35, 55, 75, 95%. simulated loss profiles obtained compared well those experiments. Results showed rate decreased 6.235 × 10−5 6.192 × 10−5 kg water/(kg wb s) as temperature increased 30 60°C. Furthermore, observed increase 6.192 × 10−5 6.211 × 10−5 kg (RH) 35