Work

Damage characteristics of high-temperature coal under different cooling rates

Year: 2024

Type: article

Abstract: The damage characteristics of high-temperature coal under water cooling was analyzed.As the heating temperature increases, the internal pore development and crack propagation in coal intensify, with the failure mode gradually shifting from brittle to plastic. There exists a threshold temperature that accelerates damage. The rapid temperature drop caused by water cooling accelerates damage and cracking in the coal. The thermal shock factor resulting from the rapid temperature drop can quantitatively represent the damage induced by water cooling. The results are expected to provide guidance for the utilization of thermal energy in coal field fire areas.

Source: Geothermics

DOI: 10.1016/j.geothermics.2024.103179

Authors: Su Wang, Hanpeng Wang, Wei Wang, Bing Zhang, Youshi Wang, Dekang Sun

Institution: Shandong University

Language: English

Topic: Coal Properties and Utilization

Subfield: Ocean Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,870

Funders: National Natural Science Foundation of China, National Postdoctoral Program for Innovative Talents