Lower rock-breaking energy
Optimizing the abrasive volume fraction to raise the share of abrasive kinetic energy, this jet configuration transfers energy to rock more effectively than conventional setups.
Chen, Changjiang · Wei, Jianping · Zhang, Tiegang · Huidong, Zhang · Liu, Yong
Powder Technology 2025
Two parameters are proposed to describe the energy transfer process during jet evolution, and the proportion of abrasive kinetic energy can be controlled by adjusting the abrasive volume fraction.
Based on the evolution of energy density and ratio of abrasive kinetic energy to total energy, the abrasive volume fraction that maximizes rock-breaking efficiency is determined.
The optimum abrasive volume fraction from numerical simulation is validated by rock breaking experiments, confirming that increasing the ratio of abrasive kinetic energy to total energy effectively improves rock-breaking efficiency.