Analisis Pengaruh Variasi Sudut Kemiringan Pisau Terhadap Energi Pemotongan Singkong

Abstract

Cassava (Manihot esculenta) in agricultural commodity widely use as a raw material in the food industry, particularly for cassava chips. The cutting process is a critical step because it affects the quality of the slices and energy efficiency during production. One factor believed to influence the energy required for cutting is the blade angle. Therefore, a study is needed to determine the effect of variations in the blade angle on cutting energy and to identify the most efficient angle. This study employed a quantitave experimental method with treatments involving variationsin the blade angle of 10°, 25°,40°,55° dan 70° at a fixed sharpening angle of 10°. Cutting energy measurements were performed using an energy measurement device base on a pendulum system equipped whith a rotary encoder and Arduino. The material used was cassava of standarixed sixe. Each treatment was repeated five time. The data were analyzed using the Shapiro-Wilk normality was repeated five times. The data were analyzed using the Shapiro-Wilk normality test, one- way analysis of variance (ANOVA), and Tukey’s HSD post hoc test at a 5% significance level. The results of the study showed that the average cutting energy at inclination angles of 10°, 25°,40°,55° and 70° were 0,897 J; 0,889 J; 0,962 J; 1,190 J; and 1382 J, respectively. The normality test result indicate that all data are normally distributed (p>0.05). The ANOVA analysis yielded a significance value of 0.000 (p<0.005), indicating that variations in blade angle have a significant effect on cassava cutting energy. The tukey HSD the results indicate significant differences between groups with larger blade angles and those with smaller angles. Increasing the blade angle tends to increase cutting energy requirements due to increased resistance during the cutting process. A blade angle of 25° resulted in the lowest energy requiment of a 0.89 J, making it the most efficient compared to the other treatments. The result of this study indicate that slecting the appropriate blade angle plays a crucial role in improving energy efficiency during the cassava cutting process.