Open AccessTransfering heat performance for controlling the spontaneous combustion in coalfield of heat pipe
Author(s) -
Yaping Zhang,
Hua Jiang,
Haohao Hao,
Fangfang Qu,
Zhiyin He,
Xin Quan
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/647/1/012109
Subject(s) - pile , coal , spontaneous combustion , heat transfer , heat pipe , internal heating , heat capacity rate , materials science , mechanics , geotechnical engineering , waste management , heat spreader , mechanical engineering , engineering , physics
A heat pipe coal pile experiment platform was established to test the performance of the heat pipe in the heat transfer of the coal pile. Experiments were carried out to measure and analyze the continuous cooling characteristics and cooling rate of the internal heat dissipation of coal piles of different heights under different temperature heat sources. The results show that when the heat source temperature is higher, there is a greater cooling rate inside the coal pile. The closer it is to the heat source, the more obvious the heat dissipation inside the coal pile will be affected by the heat pipe and heat source. This experiment verifies the feasibility of the heat pipe to automatically and continuously transfers the internal heat of the coal pile under the action of the difference between the outside temperature and the internal temperature of the coal pile, to achieve the purpose of preventing spontaneous combustion of the coal pile.