Functional Characterization of an Induction Motor-Based Compost Mixer: Evaluating Mixing Uniformity, Ampere Rating, and Dispensing Efficiency

Abstract: The growing need for sustainable composting technologies requires efficient mechanical systems capable of producing consistent, high-quality outputs. This study evaluates the performance of a 220 V, 2200 W induction motor-based compost mixer through three tests: (1) a homogeneity mixture test assessing physical and chemical uniformity; (2) a dispensing efficiency test measuring accuracy and repeatability; and (3) an ampere rating test monitoring current draw under varying loads. Compost samples were analyzed for moisture content, bulk density, pH, and nutrient levels, while current measurements were taken at no load, 3 kg, 4 kg, and 5 kg using descriptive statistics. Results showed highly uniform compost with minimal variability in key parameters, confirming effective blending. Dispensing efficiency ranged from 93.0% to 95.4%, indicating precise and reliable material discharge. Ampere ratings remained stable, averaging 2.29 A (no load) to 2.51 A (5 kg), suggesting efficient power use across loads. These findings demonstrate the mixer’s reliability for controlled compost processing and potential suitability for small- to medium-scale operations. Further work should assess long-term performance, adaptability to varied compost materials, and integration of sensors for automated monitoring. This research contributes to advancing smart, energy-efficient composting systems for agricultural and environmental applications.