Effect of pulsation period and microwave power on paddy drying

In this study, the influence of different microwave powers (90, 270, and 450 W) and pulsation periods, i.e., On/Off times (30/60 and 30/120 ss1) on drying rate and seed breakage of “Nemat” and “Hashemi” paddy varieties” was investigated. According to the results, the Midilli et al. apos;s model showed the best prediction accuracy for drying rate of the quot;Nemat quot; variety in the pulsation period of 30/60. Furthermore, the twoterm model was found as the best model for quot;Hashemi quot; variety in the pulsation periods of 30/60 and 30/120 and for quot;Nemat quot; variety in the pulsation period of 30/120.The 270 W microwave power and 30/120 pulsation period can be recommended as a final conclusion of this study for drying “Hashemi” paddy variety. The breakage percentage at this condition was 19.1%. Breakage percent of the Nemat variety was more than 40% at all of the conducted measurements, indicating that this variety is not suitable for microwave drying. The final concluding massage of this study is that a pretest should be conducted before applying the microwave for paddy drying.