Standard Practice for Ultimate Analysis of Coal and Coke; ASTM: Philadelphia, PA, USA, 1989. 46. ASTM D 2015-85. Standard Test Method for Gross Heating Value of Coal and Coke by Adiabatic Bomb Calorimeter; ASTM: Philadelphia, PA, USA, 1987. 47. Bhatt, B.P.; Todaria, N.P. Fuelwood...
energies Article Evolution of Coal Permeability during Gas Injection—From Initial to Ultimate Equilibrium Xingxing Liu 1,2 , Jinchang Sheng 1, Jishan Liu 3,* and Yunjin Hu 4 1 College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China; xliu@hhu.edu.cn (...