AN EXPERIMENTAL INVESTIGATION OF THE SPEED LOSSES IN POLY-V BELT SYSTEMS ON HOUSEHOLD DRYERS

Abstract

A decrease in rotational speed in gear belt systems is one of the fundamental problems that affects the efficiency of the belt. Therefore, in this study, the speed loss behavior of a Poly-V gear belt drive system with two different designs has been experimentally investigated. In the study, experiments were conducted with two different home-type dryers; one used two belts and a stepped pulley to adjust the speed, while the other used a single belt to reach the required speed. The experimental studies were conducted with two different home-type dryers. The results were analyzed using statistical methodology to determine whether the normal distribution was suitable for the measurement results, and a pairwise comparison of the speed losses in the two systems was made. Additionally, the predicted formula for loss calculation was compared with the results of variance analysis (ANOVA), and it was found that very similar results were obtained. As a result of the experimental study and analysis, it was observed that the single-belt drive system is more efficient compared to the two-belt drive system. With the efficiency curve obtained from this study, it is possible to calculate speed loss and efficiency gain for similar belt drive systems.