A novel approach for assessing the genuine thermal efficiency of high-pressure grinding roller (HPGR) crusher based on exergy analysis - Zhengyu Liu; Zhihao Liu; Xiaoming Liu; Bin Yang; Wei Liu; Jiawei Lin; Siqi Zhang; Wenjie Zou; Jun Zhang; Jinrong Ju; Jue Kou; Chunbao Sun; et al. (Minerals Engineering, 2026)