T. Tihanov Department of Mechanical Engineering, Faculty of Techniques and Technologies, Trakia University, 8600 Yambol, Bulgaria (Manuscript received 14 April 2026; accepted for publication 19 May 2026) *e-mail: tihomir.tihanov@trakia-uni.bg Abstract. This article examines the impact

Stoyanov1, K. Trendafilov2, N. Delchev1, G. Tihanov1   1Department of Agricultural Engineering, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria, 2Department of Mechanical Engineering, Faculty of Technics and Technologies – Yambol, Trakia University, 6000 St